The unloader valve has a spring in it that pushes down when its in the run position. So without it your basically in the start position permanently and that’s why it wont build more pressure.
@@gs1100ed I know he thinks that that is cutesie and all that nonsense, but in fact it costs him time which costs him running things he claims he'll sell instead of investing at least part of his financial empire. I mean, maybe do half of it, and the worst you are is half wrong.
A friend of mine had an electric air compressor about that same size maybe a little bigger. The electric motor burned out, I took off the motor and compressor because the compressor was slow to build air. I left everything else, plumbed it so he could hook it to his shop air compressor fill it with air and have a portable air tank on wheels. Gave new life to something that would have either been set off in a corner to collect dust or taken to a scrap yard.
That engine on your compressor is a standard, off the shelf model. The air control for the throttle is an add on. They are typically a $25 item at some hardware stores. They operate like the pressure switch on an electric compressor motor. The difference is that the engine doesn't cycle on and off, but causes the engine to surge for compressing the air, then when the call for air is fulfilled, it goes back to idle. The Amish in my area have a system for a line shaft driven compressor off of a stationary engine where there's an air cylinder on the base of the compressor, and a spring so that whenever there's a call for air, the cylinder slides the base, tensioning the belt and bringing it to pressure. When the call for pressure is fulfilled, the compressor springs disengage the belt until there's a call for pressure again.
Well now I need to see if those control thingies exist over here, because my petrol compressor (when I get it running) just has a blow off valve, the engine runs full speed all the time. Which annoys me.
@@exasperatedThe unloader control valve in the side of the tank is only part of the system. Mustie is missing the manual control portion of that valve. If the compressor isn't set up for it you won't have the unloader valves to shut off the intake air in the cylinder head(s). You also need the air throttle kicker to push the governor up off idle.
I am always amazed at the stuff that you get for free period I live in a relatively affluent area and none of these Snow blowers or lawnmowers or compressor's would be offered with anything, but a 25 or a $50 price on them, no matter what condition they were in.
Same here, wouldn’t give you drink of water much less anything of value but it is mostly poor people around me. The poor people would help a person more than the ones who have money
@@Fatbodypylethat is not tru. On maui I found a nice pressure wash that started and ran .. even had gas in it..also q big generator that ran no juice but it ran..also in new Mexico someone sat a kawasaki generator with zero wrong with it by the curb and a sign saying free on it .. yes it's tru ..
Just depends where you are. I used to go around with a trailer once a week and come home within a few hours with a full load of "trashed" stuff. I was living in Southern California too.
Another great mustie 1 video! Keep them coming. Just one small note, 90% of the time the crankshaft ( on Honda GX series are forged steel) are undamaged or worn I very confident that a new connecting rod will make it perfect again. It can be replaced without removing the head, just pull the piston back just far enough to expose the wrist-pin. You can remove the clip and pull out the pin with transmission snap-ring pliers. I have done it more times than I can remember.
You have a talent for finding fixable machines! In my neighborhood, that compressor would be listed as "mint condition" and the seller would be quick to let me know that they need to get at least a few thousand for it - and that it's worth a lot more than that!
mustie, old buddy, your going to have to get a young helper to keep your old back from giving out on you. All us followers need the Sunday shot in the arm from all your great videos. Maybe you could compile a Best of Mustie Series. Take care, Bill
I'd like a whole vid about the IMMENSE parts stash 'ol Mustie has! How on earth did you acquire so much stuff? Is it a generational stash from your dad? How the hell old ARE you?
I can't believe the good stuff you find "out by the road". I used to pick up lawn mowers and weed wackers but stuff like this is MONEY. You haul some free stuff that is really good salvage stuff.
I really would like to see more of this. Maybe dissect the engine and show us all what really failed and then get this back to operating like normal. That would be great to see! 😊
I recently fixed a similar compressor with a smaller 5.5hp Honda. What happened to it was it developed an air leak so it would never reach 120psi and the engine overheated because it was 90 degrees outside that day. The biggest problem with these small Hondas is that the connecting rod is just pure aluminium with no bearing material so the rod seizes when the oil gets to thin from overheating! Bought a new rod for 20$ because the crank was ok after polishing, so its was a cheap fix.
That’s what I was thinking a cheap fix for the engine. The piston is likely perfect, with great compression. Adding a few missing parts and this compressor can live again.
The no bearing material is unfortunately all too common on small engines. As a small engine tech working at a shop I find it rather sad how many people I feel obligated to advise that they replace equipment, especially the cheaper stuff, rather than have it repaired as their cost will be lower in doing so.
@@davidwildridge8080 Mustie very very rarely purchses anything except rebuild kits for the 2 stroke motors he fixes on weedwhackers, at which he is very talented.
@@silasmarner7586 he is great at troubleshooting. I understand on anything used the name of the game is to keep expenses to a minimum whether you are selling or keeping.
There's a bunch of pneumatic controls on that, no electric. There's an unloader valve to help startup, a pneumatic solenoid to rev engine when tank pressure drops, and obviously a regulator for supply, and a pop off valve to keep the tank from blowing up. I'd make damn sure everything is working right before running for very long. These are very serviceable, easy to keep them running forever.
The unloader valve also sets the pressure the compressor can build in the tank, and is adjustable. Air pressure from the unloader valve also keeps the compressor pistons from building any further air pressure when tripped.
Amazing what you find on the side of the road there. I guess folks here in Oklahoma know how to fix things as I’ve never seen anything like what you find!
I got a "new" lawnmower once. Gas in tank looked like orange juice. Been stored for years. But it was new when put away. And yes, was in a affluent neighborhood.
Does not happen in the UK. If it does it is pretty much always fly tipping which is illegal. Also may be a kick back via health and safety law; more's the pity for us machine types.
I have a very similar emglo compressor that has a k series kohler on it. 4 cyl 2 stage. make sure your pop off and unloader valves are working and not sticky that compressor if the pop off sticks will pressurize well over burst pressure on most tanks. don't want the big kaboom to happen to ya. also mine has a clutch on it so when the engine throttles down it doesn't turn the compressor. not sure if someone might have eliminated it on yours. and you are missing the whole top of the pop off/unloader valve there. the little diagram is showing you the position of the valve handle you are missing. you adjust the valve for your shut off and kick on pressures. when the valve pops off it shoves the throttle to idle and fires the unloader valves that stop the compressor from making pressure so it is not fighting against tank pressure when it trips over to run again when pressure drops. At idle it just freewheels and makes no pressure but as i said your missing the guts of your pop off valve
watching Mustie talking about his rain while it's raining here in Clermont FL is sooo therapeutic, I have decided we need more Sundays in the week so we can have more Mustie"s videos.
Thank you for another great video. The unloader/pilot valve (where you were spraying lube on the check ball) is missing all of its guts. Part of this is the toggle that is pictured on the label to the right. This makes it unable to unload the compressor heads. Your compressor is a two head, four cylinder, single stage compressor (maximum 100 to 125PSI rating.) Each head compresses air separately from the other. Each head has its own discharge line, then both lines tie into the common manifold below the compressor. There is a check valve below this (in the tank) that allowed you to back feed the tank through the outlet pressure regulator. The reason you could not pressure the tank past 30PSI, with the compressor, is that one of the inlet valves in the other head is either stuck open by debris or a valve disc could be broken. This lets the air from the working head to escape thru the other head. I learn more from you about small engines every week. Thanks!
Darren, a friend's employees were trying to get their Honda powered pressure washer running, but were unable to. I told them to check the oil level. When they checked it, it was low. After filling it, the were able to get it running. My point is, low oil allerts are made to prevent the engine from starting on low oil, but might not be to shut it down when it leaks out or burns oil. This might be the case on this engine. As for the air leaking from the tank, it seems to me that there is an over pressure device (OPD) that's missing from that check valve.
Honda engines use a internal float switch to detect the oil level. The low oil shutoff works continuously, not just when starting. There are two parts of the system, an oil level sensor inside the engine and a latch module with black and yellow wires screwed to the side of the engine. The sensor is a simple float switch. The yellow wire coming out of the crankcase float is connected to a guided bobber with a pointed contact at the bottom that taps against the metal case as the oil gets low. You might think that yellow wire could directly short out the magneto to shut off the spark, but the magneto outputs a few amps of current and the float switch contact isn't especially good when it's barely bouncing on the case. So there is a "latch" module. That small metal box actually has three contacts, with the case being the third. When the circuit detects a little current flowing through the yellow wire, it triggers the SCR to conduct the bulk of the magneto current for a few seconds through the metal case.
That second air intake port is loose so you can't detect a vacuum when you block it with your finger. It was most likely sucking in the air at the loose connection. That's my guess as to why you can't feel anything on that side.
What a find, I wish people would leave things like that in the UK. America does seem to have a more hands on approach and more "gas" powered tools. Great vid as always. Thanks Mustie. From Somerset UK.
Sunday night in AUS, thank goodness for Mustie, nice work. I wondered if someone was trying to run that engine on 2 stroke mix by mistake.? So much goo in the carby. The compressor will take an air compressor oil, probably a 68 or 46, Castrol’s oil would be AIRCOL PD (for piston type) 46 , 68 etc etc
not that 2 stroke would really hurt it. smoke like mutha, carb get gummy but thats about it. we've had dingbat summer helpers run 50:1 2 stroke thru our generators , Hustler zero turns. a can of seafoam later, youd never know
It is my personal philosophy that any machine that uses a Honda GX is worth attempting to fix. That GX is hard to beat and that whole setup is pretty decent quality wise. Just rode hard and put away wet, with minimal care and maintenance. But thats why its got a GX so it will just work for thousands of hours reliably.
I love stuff found on the side of the road, always interesting how people either give up trying to fix something, or they don't even try to fix it, because they don't know how. Mustie1 usually can fix anything, that's why i like my sunday morning's watching what comes into the operating table. G-d bless y'all.
I have a Dewalt Wheelbarrow compressor similar to this one, but its the dual tank model. It's all based on pneumatic controls, and the port that is leaking controls the engine speed, just like you thought. The diagram is that missing piece, you set it to start so you're able to pull start it without it reving up on its own. It's also missing the belt cover. Seems like this unit became a parts machine.
Hey man great video, check the cost of a new rod they are not that dear, had to replace one in my honda ride on not that long ago. Also as others said unloader valve parts missing and pull the compressor valves and clean the carbon from them, takes very little to stop them from working correctly. Handy unit for the lake or picking up vehicles with flat tyres
Mustie1 the only guy I know that defies gravity. Most people would have pulled the compressor up the ramp. The notch marks showed manufacturing date 2005 (5) and January (A: A to M is 12 letters, so 12 months) Now to watch the rest, as I bought a compressor at an auction so might learn something. 👍🏼 Thank you Darren
my dad works as an inspector a place where these compressors are made. The tanks are built on the tolerance of the tolerance to save on costs. The top end of the compressors are basically designed to be mechanically worn out before the tank rusts and becomes dangerous. Unfortunately these things are throw away compressors.
Go online for a trouble shooting plan or better, a new unit diagram. loose parts cause air intake and loss of control pressure. love seeing your diagnogistic procedure. Add a wench or swing arm wench to your truck.
15:30 I just replaced the carb on my Honda engine DeWalt pressure washer. It was $25 for an entire tune up kit including a coil and plug wire. My problem was not checking the free play of the throttle plate and assembling it with the throttle shut. 2 blisters later and I removed the carb connected the linkage correctly and it fired up on the first pull.
Keep that positive attitude, my friend. It's definitely always a winner! Win some and lose some is part of the learning experience that will eventually make us successful.
I would remove the spark plug and use drill to oil up the engine really good before even trying to start it Do the same thing on all engines i over haul also
Strict speaking, the compressor should be filled with 'compressor oil' however, our old Ingersoll Rand has been running with a 20 weight diesel engine oil for at least the last twenty five years. The pipes to the cylinder heads is to oil the valves and upper cylinders - it's a 'total loss' lubricating system, but the amount of oil that gets to the heads is miniscule, but, you do need to maintain the oil level in the casing. It should be checked at least once a week, and oil added when necessary. I can't speak for everyone, but I'd love to see that engine dismantled and see what went wrong, then fix it. Properly repaired, that's a valuable mobile compressor, and well worth spending the time and money.
I can say for certain that no one here in Germany would throw out a machine like that, or let it get in that condition. This is the result of taking abundance for granted. Hope you get it all sorted out.
Absolutely and the same here in Australia. Americans complain about how much things cost but most have no idea just how cheaply they can buy things. I regularly compare prices and generally prices in Australia are about double what you pay in the US.
Your missing a 125PSI pop off valve with a relief knob. You would stand it straight up to start the engine and then lay it on its side to run and buildup pressure
It's an automatic engine unloader. Older style gas compressors just had a valve that blows off periodically if the tank gets over pressure.. this design keeps the valves open when the tank is at the set psi to stop it overpressuring the tank and not needing to blow off and waste air.. there is usually and adjustment screw in that unoader valve thats missing which lets you set the tank air pressure.
I was wondering this. Is it too much effort and cost to rebuild the bottom end to eliminate that knock? Feels well worth it for an 8HP honda compressor.
Unloader valve is missing. It supplies air to the engine throttle operating piston and the compressor valves to open them when not needed. Easy to find at McMaster-Carr. Used all the time on similar applications including locomotives and other continuously operating compressors. Good video all around.
I just found myself giggling uncontrollably at the sounds the compressor was making around 29:33 onwards, totally nothing to do with it sounding like someone farting into their coffee cup I'm sure... :P
This guy make sure that nobody else gets anything goes out every damn day and grab everything along the road that’s worth anything to keep anybody else from having it!
It would have been a lot easier to pull it up, instead of trying to push it. And he has Crusty the truck, that has the fold down sides, about as low as any mini van.
I have this homemade arch thing mounted across the truck bed and an ATV winch that pulls the heavy thing (including little car motors) up and then the cable has a cable clamp that causes the cable to pull the arch into the vehicle and then I reverse the winch to lower the load down onto a tire in the truck bed... getting stuff down a ramp is easy.
Nice design with these valves. If they are activated, they connect the two cylinders of one side and they cancel each other out. So they are not producing any pressure. Also this setup unloads the cylinders for easy start. The absolute pressure may be 50 psi but the cylinders does not have to fight against it, because the differential pressure of both cylinders is 0 psi when the velves connect them together. Cool, simple and elegant
THAT PART NEXT TO GAUGE HAS 4 PURPOSES. HIGH PRESSURE POP OFF, (WHICH IS MISSING), CHECK VALVE (WHICH IS LEAKING). PRESSURE CUT IN, CUTOUT ADJUSTMENT. AND THROTTLE KICKDOWN PORT. MY GUESS SLIDER ON COMPRESSOR HEAD IS EITHER UNLOADER, OR PART OF PRESSURE ADJUSTMENT CUT IN, OR OUT, MAYBE BOTH. PS: ON MY GENIE PRESSURE / UNLOADER VALVE, IT CAME WITH 3 DIFFERENT COLORED SPRINGS FOR ADJUSTING PRESSURE TOO. DIFFERENT SPRING RATES FOR EACH COLOR.
I've been using a found-on- the- curb-while-riding-my-bike air compressor since 2006. It needed a $6 supply gauge from Lowes, which I pointed out to the old owner who pushing it out when I cycled into his cul-de-sac. He replied 'i got a lot bigger one, you can have it " . Rode home and was back with a truck within 30 minutes
Mustie1 thank you for posting this and your earlier videos. They are both informative and fun to watch. Your shop reminds me of mine, full of what others sometimes term as junk. However, if you're trying to jury rig and need a part no longer manufactured its a great resource. Please keep them coming.
The compressor valves float when it gets up to pressure so it wont overpressure. That brass fitting is the unloader valve which opens back to the pressure vessel. When it closes it allows the valves to allow the compressor to start pumping.
How do you find all this killer stuff there's never anything remotely close to anything worth a damn on the side of the road ever where I live in Washington State
just a thought . make a compressor into a engine . overhead valve external cam pully to run off crank . i would strip it down just to the tank and make a portable storage air tank to air up tires on things you find to bring home . i think a engine with that kind of head facing back .the oil draining out while tipped up would be a bad design if you pick up and roll it the oil would go to the head . so a old style engine straight up and down would be better so it you move it while it is running most of the oil would stay in the bottom . i think it was moved to much or fell over while running
Having had an inguinal hernia repaired via open surgery three weeks back... I completely agree! I'm banned from heavy lifting for 8 weeks. I'm still in a lot of pain and healing as I type this!
You forgot that you turned down the air pressure switch, The one that asks how much air does this tool require. You might have it set on 30 lbs. Love your channel. Keep up the good work. Have fun and Stay safe.
I bought a piece of equipment which had a petrol tank which had come loose with vibration and had a hole in the top of the tank the size of a large coin and many cracks radiating from the support bracket, Hard to believe they just kept using it when you could see the petrol inside and only fill it less than half full. I made a piece for the hole and thought it was really impressive after I welded it all up. Far better than a new one. Everyone who saw it could not stop looking at that petrol tank.
You find the best stuff. Air guns are an easy fix. I got some recently and all they needed was a really good cleaning as they were all gummed up and sticking.
$2500 for a new 1 same as that with the Honda engine here in ontario. That compressor is not all that old. Those Honda engines lost forever. My compressor's 25 years old had to replace the pump, but the engine still runs strong..
Now ladies and gentlemen, this is a "rod-knock ". Digging the dive into the compressor control system . Very interesting. Yeah, those mechanisms are intriguing. Plus the design and configuration of the entire system. Waiting for lesson #2: "The Piston Skirt Slap". ...until next time.
Love to see you recondition on the crank bore on the rod.. I had 4 rods reconfirmed for a sunbeam alpine in 1970 on my first engine rebuild. Engine ran great!. Nice video.
After watching TH-cam videos of compressor tanks rupturing, I would not be interested in putting a used tank in service. The engine and compressor motor though are fair game.. great job.
I had a similar save a year ago. I got my hands on a Craftsman compressor from the early 70's that had not run in 20 years. I was not able to find any parts or information about this compressor online at all, but thankfully I was able to get it going like it was, despite the fact that the tank was full of water. It is still running great, so hopefully that will continue. I only even found one example of one that sold in an online estate sale several years ago, so I am guessing that it is extremely rare. I just hope nothing breaks on it.
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Mustie “Hey guys how’s it going”😂 definitely one of my favorite channels much ❤️ from New Jersey 💪🏽💯🫡
Newark Nj in Musty1's house 🤩👍
Did you really say "How's it going" in the USA? Because it's a common greeting phrase here in Germany. Wie geht es dir
The unloader valve has a spring in it that pushes down when its in the run position. So without it your basically in the start position permanently and that’s why it wont build more pressure.
I was almost screaming at the screen that the unloader valve has missing parts and the sticker beside it was dead giveaway 😅
My guess was that it just needed to turn 90° to close that relief valve, like the diagram showed...
😉👍
@@xumot Mustie don’t read no instructions
@@gs1100ed I know he thinks that that is cutesie and all that nonsense, but in fact it costs him time which costs him running things he claims he'll sell instead of investing at least part of his financial empire. I mean, maybe do half of it, and the worst you are is half wrong.
@@xumot As long as he is never, EVER an A&P mechanic, he can't hurt others with his apparent intentional illiteracy.
I'd love to just walk around mustie's shop and look at all the stuff. Truly impressive
A real museum. The kind WE like
A friend of mine had an electric air compressor about that same size maybe a little bigger. The electric motor burned out, I took off the motor and compressor because the compressor was slow to build air. I left everything else, plumbed it so he could hook it to his shop air compressor fill it with air and have a portable air tank on wheels. Gave new life to something that would have either been set off in a corner to collect dust or taken to a scrap yard.
Also good for making a bead blaster for helping seal tubeless tyres etc 🤩🤩🤩
I did the same with an old 20 gallon
That engine on your compressor is a standard, off the shelf model. The air control for the throttle is an add on. They are typically a $25 item at some hardware stores. They operate like the pressure switch on an electric compressor motor. The difference is that the engine doesn't cycle on and off, but causes the engine to surge for compressing the air, then when the call for air is fulfilled, it goes back to idle. The Amish in my area have a system for a line shaft driven compressor off of a stationary engine where there's an air cylinder on the base of the compressor, and a spring so that whenever there's a call for air, the cylinder slides the base, tensioning the belt and bringing it to pressure. When the call for pressure is fulfilled, the compressor springs disengage the belt until there's a call for pressure again.
Well now I need to see if those control thingies exist over here, because my petrol compressor (when I get it running) just has a blow off valve, the engine runs full speed all the time. Which annoys me.
@@exasperated i have the same, would be cool to find a retrofit kit!
@@exasperatedThe unloader control valve in the side of the tank is only part of the system.
Mustie is missing the manual control portion of that valve.
If the compressor isn't set up for it you won't have the unloader valves to shut off the intake air in the cylinder head(s).
You also need the air throttle kicker to push the governor up off idle.
@@exasperated Without the full unloader system your engine can not over come the tank pressure, so it has to run at rated RPM.
I am always amazed at the stuff that you get for free period I live in a relatively affluent area and none of these Snow blowers or lawnmowers or compressor's would be offered with anything, but a 25 or a $50 price on them, no matter what condition they were in.
Same here, wouldn’t give you drink of water much less anything of value but it is mostly poor people around me. The poor people would help a person more than the ones who have money
Thats because nobody throws valuable equipment like these "finds" in the trash
It’s simply because nobody ever got rich by being generous 😢
@@Fatbodypylethat is not tru. On maui I found a nice pressure wash that started and ran .. even had gas in it..also q big generator that ran no juice but it ran..also in new Mexico someone sat a kawasaki generator with zero wrong with it by the curb and a sign saying free on it .. yes it's tru ..
Just depends where you are. I used to go around with a trailer once a week and come home within a few hours with a full load of "trashed" stuff. I was living in Southern California too.
Another great mustie 1 video! Keep them coming. Just one small note, 90% of the time the crankshaft ( on Honda GX series are forged steel) are undamaged or worn I very confident that a new connecting rod will make it perfect again. It can be replaced without removing the head, just pull the piston back just far enough to expose the wrist-pin. You can remove the clip and pull out the pin with transmission snap-ring pliers. I have done it more times than I can remember.
You have a talent for finding fixable machines! In my neighborhood, that compressor would be listed as "mint condition" and the seller would be quick to let me know that they need to get at least a few thousand for it - and that it's worth a lot more than that!
I know what I got 🤑🤑🤑
LOL So true!
Yeah don't forget the "I know what I got"
Since Car Talk went off the air, my favorite part of the weekend is this channel and hearing Mustie laugh. 👍👍
I so agree. Listen to the click & clack bros. For years. ( Miss the radio show )
Don’t be like my brother
@@sccarguy8242Don't be like my brother
mustie, old buddy, your going to have to get a young helper to keep your old back from giving out on you. All us followers need the Sunday shot in the arm from all your great videos. Maybe you could compile a Best of Mustie Series. Take care, Bill
I'd like a whole vid about the IMMENSE parts stash 'ol Mustie has! How on earth did you acquire so much stuff? Is it a generational stash from your dad? How the hell old ARE you?
I can't believe the good stuff you find "out by the road". I used to pick up lawn mowers and weed wackers but stuff like this is MONEY. You haul some free stuff that is really good salvage stuff.
The content pays more not too fix it
I really would like to see more of this. Maybe dissect the engine and show us all what really failed and then get this back to operating like normal. That would be great to see! 😊
I recently fixed a similar compressor with a smaller 5.5hp Honda. What happened to it was it developed an air leak so it would never reach 120psi and the engine overheated because it was 90 degrees outside that day. The biggest problem with these small Hondas is that the connecting rod is just pure aluminium with no bearing material so the rod seizes when the oil gets to thin from overheating! Bought a new rod for 20$ because the crank was ok after polishing, so its was a cheap fix.
That’s what I was thinking a cheap fix for the engine. The piston is likely perfect, with great compression. Adding a few missing parts and this compressor can live again.
The no bearing material is unfortunately all too common on small engines. As a small engine tech working at a shop I find it rather sad how many people I feel obligated to advise that they replace equipment, especially the cheaper stuff, rather than have it repaired as their cost will be lower in doing so.
@@davidwildridge8080 Mustie very very rarely purchses anything except rebuild kits for the 2 stroke motors he fixes on weedwhackers, at which he is very talented.
@@silasmarner7586 he is great at troubleshooting. I understand on anything used the name of the game is to keep expenses to a minimum whether you are selling or keeping.
There's a bunch of pneumatic controls on that, no electric. There's an unloader valve to help startup, a pneumatic solenoid to rev engine when tank pressure drops, and obviously a regulator for supply, and a pop off valve to keep the tank from blowing up.
I'd make damn sure everything is working right before running for very long.
These are very serviceable, easy to keep them running forever.
Just like the unloader valve(s) on a pneumatic brake truck.
You gotta spend 20 bucks first
That was my thought about the pop up valve. It usually have a little "keychain" ring, at the top end.
@@JimsNBHomesteadyep. And this fella doesn't take out his wallet for much of anything. Thats a fact.
@@gags730 😆 Cheers my friend!!!
The valve missing in the side is an unloader valve. You relieve the head pressure on the compressor to start. Cool find though!
The unloader valve also sets the pressure the compressor can build in the tank, and is adjustable. Air pressure from the unloader valve also keeps the compressor pistons from building any further air pressure when tripped.
It’s not a Mustie video unless something is “pissing out” 😂
Who's the new guy? lol
Another super video. I expect nothing more from this fabulous down to earth guy. Thank you Darren. Hope all is well. Stay safe and enjoy.
49:04 49:06 😂
Love it when Mustie says... let's go check the stash and there are tones of everything available
But apparently not another Honda 240 engine.
Amazing what you find on the side of the road there. I guess folks here in Oklahoma know how to fix things as I’ve never seen anything like what you find!
I always think that. Where I live nobody gives anything away!
Affluent area. People with money don't need to fix stuff.
I got a "new" lawnmower once. Gas in tank looked like orange juice. Been stored for years. But it was new when put away. And yes, was in a affluent neighborhood.
People in my area throw out
Does not happen in the UK. If it does it is pretty much always fly tipping which is illegal. Also may be a kick back via health and safety law; more's the pity for us machine types.
I have a very similar emglo compressor that has a k series kohler on it. 4 cyl 2 stage. make sure your pop off and unloader valves are working and not sticky that compressor if the pop off sticks will pressurize well over burst pressure on most tanks. don't want the big kaboom to happen to ya. also mine has a clutch on it so when the engine throttles down it doesn't turn the compressor. not sure if someone might have eliminated it on yours. and you are missing the whole top of the pop off/unloader valve there. the little diagram is showing you the position of the valve handle you are missing. you adjust the valve for your shut off and kick on pressures. when the valve pops off it shoves the throttle to idle and fires the unloader valves that stop the compressor from making pressure so it is not fighting against tank pressure when it trips over to run again when pressure drops. At idle it just freewheels and makes no pressure but as i said your missing the guts of your pop off valve
watching Mustie talking about his rain while it's raining here in Clermont FL is sooo therapeutic, I have decided we need more Sundays in the week so we can have more Mustie"s videos.
How is the wine there in Clermont? Lol
I agree, from Orlando .
Sunday morning Coffee and Mustie :)
Sunday evening and Mustie for me. In Austrlia.🤠
Same, two months later. 😊
Thank you for another great video.
The unloader/pilot valve (where you were spraying lube on the check ball) is missing all of its guts. Part of this is the toggle that is pictured on the label to the right. This makes it unable to unload the compressor heads. Your compressor is a two head, four cylinder, single stage compressor (maximum 100 to 125PSI rating.) Each head compresses air separately from the other. Each head has its own discharge line, then both lines tie into the common manifold below the compressor. There is a check valve below this (in the tank) that allowed you to back feed the tank through the outlet pressure regulator. The reason you could not pressure the tank past 30PSI, with the compressor, is that one of the inlet valves in the other head is either stuck open by debris or a valve disc could be broken. This lets the air from the working head to escape thru the other head. I learn more from you about small engines every week. Thanks!
So I sat down with my cup of coffee to wake up to Mustie!!! This is my every Sunday wakeup 🎉❤ thanks Mustie
Sunday morning with Mustie never disappoints
Darren, a friend's employees were trying to get their Honda powered pressure washer running, but were unable to. I told them to check the oil level. When they checked it, it was low. After filling it, the were able to get it running. My point is, low oil allerts are made to prevent the engine from starting on low oil, but might not be to shut it down when it leaks out or burns oil. This might be the case on this engine.
As for the air leaking from the tank, it seems to me that there is an over pressure device (OPD) that's missing from that check valve.
Honda engines use a internal float switch to detect the oil level. The low oil shutoff works continuously, not just when starting.
There are two parts of the system, an oil level sensor inside the engine and a latch module with black and yellow wires screwed to the side of the engine.
The sensor is a simple float switch. The yellow wire coming out of the crankcase float is connected to a guided bobber with a pointed contact at the bottom that taps against the metal case as the oil gets low.
You might think that yellow wire could directly short out the magneto to shut off the spark, but the magneto outputs a few amps of current and the float switch contact isn't especially good when it's barely bouncing on the case. So there is a "latch" module. That small metal box actually has three contacts, with the case being the third. When the circuit detects a little current flowing through the yellow wire, it triggers the SCR to conduct the bulk of the magneto current for a few seconds through the metal case.
@@1djbecker apparently his has some issues with it as the oil was very low. However it was a genuine Honda, so it should have done it's job.
That second air intake port is loose so you can't detect a vacuum when you block it with your finger. It was most likely sucking in the air at the loose connection. That's my guess as to why you can't feel anything on that side.
What a find, I wish people would leave things like that in the UK. America does seem to have a more hands on approach and more "gas" powered tools. Great vid as always. Thanks Mustie.
From Somerset UK.
Sunday night in AUS, thank goodness for Mustie, nice work. I wondered if someone was trying to run that engine on 2 stroke mix by mistake.? So much goo in the carby. The compressor will take an air compressor oil, probably a 68 or 46, Castrol’s oil would be AIRCOL PD (for piston type) 46 , 68 etc etc
not that 2 stroke would really hurt it. smoke like mutha, carb get gummy but thats about it. we've had dingbat summer helpers run 50:1 2 stroke thru our generators , Hustler zero turns. a can of seafoam later, youd never know
It is my personal philosophy that any machine that uses a Honda GX is worth attempting to fix. That GX is hard to beat and that whole setup is pretty decent quality wise. Just rode hard and put away wet, with minimal care and maintenance. But thats why its got a GX so it will just work for thousands of hours reliably.
Honda motors rock
I love stuff found on the side of the road, always interesting how people either give up trying to fix something, or they don't even try to fix it, because they don't know how. Mustie1 usually can fix anything, that's why i like my sunday morning's watching what comes into the operating table. G-d bless y'all.
I'm like that. With. Pc.s and electronics
@@gerry-p9xMe too. I like fixing electronics
I have a Dewalt Wheelbarrow compressor similar to this one, but its the dual tank model. It's all based on pneumatic controls, and the port that is leaking controls the engine speed, just like you thought. The diagram is that missing piece, you set it to start so you're able to pull start it without it reving up on its own. It's also missing the belt cover. Seems like this unit became a parts machine.
Hey man great video, check the cost of a new rod they are not that dear, had to replace one in my honda ride on not that long ago.
Also as others said unloader valve parts missing and pull the compressor valves and clean the carbon from them, takes very little to stop them from working correctly. Handy unit for the lake or picking up vehicles with flat tyres
Mustie1 the only guy I know that defies gravity. Most people would have pulled the compressor up the ramp.
The notch marks showed manufacturing date 2005 (5) and January (A: A to M is 12 letters, so 12 months)
Now to watch the rest, as I bought a compressor at an auction so might learn something. 👍🏼 Thank you Darren
my dad works as an inspector a place where these compressors are made. The tanks are built on the tolerance of the tolerance to save on costs. The top end of the compressors are basically designed to be mechanically worn out before the tank rusts and becomes dangerous. Unfortunately these things are throw away compressors.
I*'m sure there is an engine around there that will work. Good free score ...as usual!! I enjoyed the nature scenes being back!!
A short block is $170.00 for that. Even A connecting rod is available for $13.00. If the crank lobe is not damaged then it's worth 13 dollars to fix.
probably want a sump gasket too but still pretty darn cheap and another good hour video at least...
I love it when we go shopping with Mustie. Great adventures and great fun.
Good morning everybody and thumbs UP to Mustie1! 👍
Go online for a trouble shooting plan or better, a new unit diagram. loose parts cause air intake and loss of control pressure. love seeing your diagnogistic procedure. Add a wench or swing arm wench to your truck.
you got me hooked, first thing i look for on sunday
15:30 I just replaced the carb on my Honda engine DeWalt pressure washer. It was $25 for an entire tune up kit including a coil and plug wire. My problem was not checking the free play of the throttle plate and assembling it with the throttle shut. 2 blisters later and I removed the carb connected the linkage correctly and it fired up on the first pull.
Mustie.1, "Lets Wrench". God Bless
Keep that positive attitude, my friend. It's definitely always a winner! Win some and lose some is part of the learning experience that will eventually make us successful.
I would remove the spark plug and use drill to oil up the engine really good before even trying to start it
Do the same thing on all engines i over haul also
Strict speaking, the compressor should be filled with 'compressor oil' however, our old Ingersoll Rand has been running with a 20 weight diesel engine oil for at least the last twenty five years. The pipes to the cylinder heads is to oil the valves and upper cylinders - it's a 'total loss' lubricating system, but the amount of oil that gets to the heads is miniscule, but, you do need to maintain the oil level in the casing. It should be checked at least once a week, and oil added when necessary.
I can't speak for everyone, but I'd love to see that engine dismantled and see what went wrong, then fix it. Properly repaired, that's a valuable mobile compressor, and well worth spending the time and money.
I can say for certain that no one here in Germany would throw out a machine like that, or let it get in that condition. This is the result of taking abundance for granted. Hope you get it all sorted out.
Absolutely and the same here in Australia. Americans complain about how much things cost but most have no idea just how cheaply they can buy things. I regularly compare prices and generally prices in Australia are about double what you pay in the US.
It's the price for ww2
@@rcman1023 ?
Your missing a 125PSI pop off valve with a relief knob. You would stand it straight up to start the engine and then lay it on its side to run and buildup pressure
It's an automatic engine unloader. Older style gas compressors just had a valve that blows off periodically if the tank gets over pressure.. this design keeps the valves open when the tank is at the set psi to stop it overpressuring the tank and not needing to blow off and waste air.. there is usually and adjustment screw in that unoader valve thats missing which lets you set the tank air pressure.
Could probably find some bearings for the crank and check the internals for anything else. Would be pretty cheap to rebuild
I was wondering this. Is it too much effort and cost to rebuild the bottom end to eliminate that knock? Feels well worth it for an 8HP honda compressor.
That belt stash is no joke 🤩
Put it aside until you find another engine?? You probably have 20 of the out back you could piece together right??
Love the loading scene. Waiting for the doctor scene for the hernia issue!
Funny how the guy waited until you had it loaded before he spoke up.
Yeah but I mean... It was free. Hard to complain, really.
Unloader valve is missing. It supplies air to the engine throttle operating piston and the compressor valves to open them when not needed. Easy to find at McMaster-Carr. Used all the time on similar applications including locomotives and other continuously operating compressors. Good video all around.
I just found myself giggling uncontrollably at the sounds the compressor was making around 29:33 onwards, totally nothing to do with it sounding like someone farting into their coffee cup I'm sure... :P
Do you also laugh uncontrollably at a clown with big shoes slipping on a banana?
Thanks for the shop time Mustie1! Amazing how the shop didn't fill with smoke while you ran that engine!
You need to fabricate a jib crane for your pickup to lift the heavy stuff in. Ramps are ok for somethings but don't do it all, for sure.
I think Abom should donate his to the channel. He never uses it!
Always fun hanging out with you sir. Thanks!
This guy make sure that nobody else gets anything goes out every damn day and grab everything along the road that’s worth anything to keep anybody else from having it!
Compressors use reed valves. They do break, but they're fairly easy to replace.
So how did the factory install the screw with the nub on it?🤔
They screwed it in and scrimped the side of it to prevent you from being able to adjust it any further
Makes sense!😊
Beautiful scenery at the end. Thanks for putting that back in this video.
I haven't seen any goodies on the curb near me in 10 years
I always look forward to your "calm and lovely nature" interludes at the end of your videos. :D
MUSTIE NEEDS A CRANE MOUNTED ON THE TRUCK, OR A FRONT WHEEL DRIVE VAN
It would have been a lot easier to pull it up, instead of trying to push it. And he has Crusty the truck, that has the fold down sides, about as low as any mini van.
He has a winch in the bed of the truck.
I have this homemade arch thing mounted across the truck bed and an ATV winch that pulls the heavy thing (including little car motors) up and then the cable has a cable clamp that causes the cable to pull the arch into the vehicle and then I reverse the winch to lower the load down onto a tire in the truck bed... getting stuff down a ramp is easy.
Nice design with these valves. If they are activated, they connect the two cylinders of one side and they cancel each other out. So they are not producing any pressure. Also this setup unloads the cylinders for easy start. The absolute pressure may be 50 psi but the cylinders does not have to fight against it, because the differential pressure of both cylinders is 0 psi when the velves connect them together. Cool, simple and elegant
Coffee time
THAT PART NEXT TO GAUGE HAS 4 PURPOSES. HIGH PRESSURE POP OFF, (WHICH IS MISSING), CHECK VALVE (WHICH IS LEAKING). PRESSURE CUT IN, CUTOUT ADJUSTMENT. AND THROTTLE KICKDOWN PORT. MY GUESS SLIDER ON COMPRESSOR HEAD IS EITHER UNLOADER, OR PART OF PRESSURE ADJUSTMENT CUT IN, OR OUT, MAYBE BOTH. PS: ON MY GENIE PRESSURE / UNLOADER VALVE, IT CAME WITH 3 DIFFERENT COLORED SPRINGS FOR ADJUSTING PRESSURE TOO. DIFFERENT SPRING RATES FOR EACH COLOR.
Darren you'll be kickin' yourself that you haven't put in a removable winch on the back of the bed on your truck!
That had you puffin'.
I guess he hasn't found a free one yet
I've been using a found-on- the- curb-while-riding-my-bike air compressor since 2006. It needed a $6 supply gauge from Lowes, which I pointed out to the old owner who pushing it out when I cycled into his cul-de-sac. He replied 'i got a lot bigger one, you can have it " .
Rode home and was back with a truck within 30 minutes
Morning
Mustie1 thank you for posting this and your earlier videos. They are both informative and fun to watch. Your shop reminds me of mine, full of what others sometimes term as junk. However, if you're trying to jury rig and need a part no longer manufactured its a great resource. Please keep them coming.
I'd be all over that compressor!
The compressor valves float when it gets up to pressure so it wont overpressure. That brass fitting is the unloader valve which opens back to the pressure vessel. When it closes it allows the valves to allow the compressor to start pumping.
How do you find all this killer stuff there's never anything remotely close to anything worth a damn on the side of the road ever where I live in Washington State
wow, love that the Mustie nature ending is back! Beautiful!
can we save it if mustie cant its reall broken
just a thought . make a compressor into a engine . overhead valve external cam pully to run off crank . i would strip it down just to the tank and make a portable storage air tank to air up tires on things you find to bring home . i think a engine with that kind of head facing back .the oil draining out while tipped up would be a bad design if you pick up and roll it the oil would go to the head . so a old style engine straight up and down would be better so it you move it while it is running most of the oil would stay in the bottom . i think it was moved to much or fell over while running
Time for a cable hoist and straps for loading before you get a hernia happens to the best of us !
Pulling compressor up ramp instead of pushing works better.
Having had an inguinal hernia repaired via open surgery three weeks back... I completely agree! I'm banned from heavy lifting for 8 weeks. I'm still in a lot of pain and healing as I type this!
Wow that's awesome ❤ I drive 18wheeler through NH ME all the time and never see anything that awesome! Thanks for sharing
One compressor equals one hernia.
You forgot that you turned down the air pressure switch, The one that asks how much air does this tool require. You might have it set on 30 lbs. Love your channel. Keep up the good work. Have fun and Stay safe.
The switch that you adding air to.
Owell just braze up the hole and clean the carb, she’ll run again
Jb. Weld the tank
@@gerry-p9x I would just weld it. Just run an extra gas hose from the MIG bottle into the tank and purge it for a few minutes before welding.
No matter how many times I watch you take a carburetor apart I always enjoy it
boy i live in an area not very far from you and i never see this stuff for free what gives?
I bought a piece of equipment which had a petrol tank which had come loose with vibration and had a hole in the top of
the tank the size of a large coin and many cracks radiating from the support bracket, Hard to believe they just kept using it
when you could see the petrol inside and only fill it less than half full.
I made a piece for the hole and thought it was really impressive after I welded it all up. Far better than a new one.
Everyone who saw it could not stop looking at that petrol tank.
Time for a winch
You find the best stuff. Air guns are an easy fix. I got some recently and all they needed was a really good cleaning as they were all gummed up and sticking.
Do a video on how to make a one hour video with 20 minutes of content, pretty lame the last few weeks
$2500 for a new 1 same as that with the Honda engine here in ontario. That compressor is not all that old. Those Honda engines lost forever. My compressor's 25 years old had to replace the pump, but the engine still runs strong..
Canadians fix stuff with realistic efforts to make things reliable and useful
Now ladies and gentlemen, this is a "rod-knock ". Digging the dive into the compressor control system . Very interesting. Yeah, those mechanisms are intriguing. Plus the design and configuration of the entire system. Waiting for lesson #2: "The Piston Skirt Slap". ...until next time.
lovin' the shop teacher look with the white socks pulled up tight mid calf.
Love to see you recondition on the crank bore on the rod.. I had 4 rods reconfirmed for a sunbeam alpine in 1970 on my first engine rebuild. Engine ran great!.
Nice video.
Love working on them small engines they are fun to work on awesome ways to teach your kids too
Wow nice find ! You have great neighbors. As long as that tank doesn't blow up it's worth fixing up.
It’s like a Jake brake in a way. No compression when there’s enough pressure. Love the content.
After watching TH-cam videos of compressor tanks rupturing, I would not be interested in putting a used tank in service.
The engine and compressor motor though are fair game.. great job.
I've only watched about a minute, and already know it's time to put a winch in the bed of the Toyota. Love your vids. Thanks from Santa Fe, NM USA.
I had a similar save a year ago. I got my hands on a Craftsman compressor from the early 70's that had not run in 20 years. I was not able to find any parts or information about this compressor online at all, but thankfully I was able to get it going like it was, despite the fact that the tank was full of water. It is still running great, so hopefully that will continue. I only even found one example of one that sold in an online estate sale several years ago, so I am guessing that it is extremely rare. I just hope nothing breaks on it.