What's Wrong With This Craftsman Snow Blower?
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- เผยแพร่เมื่อ 12 ม.ค. 2023
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Thanks for watching. I was hoping to get out my snowblower to use this year
but it was surging so badly that I decided to replace the carb.
This video is meant as entertainment, always practice safety. - ยานยนต์และพาหนะ
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I would take a close look at the governor spring and linkage. If that all looks good I would lean towards an air leak around the carb/intake. It would be interesting to see how it acts with the original carb after you enlarged the openings on the jets.
that makes sense
I would try checking the valve lash. Unless it is an airleak by the carb, you can usually tell if a gasket or seal is leaking because dirt and grime will collect there due to oil seeping out. And if oil can coming out then air could be coming in. Cant wait to find out whats wrong with it!
Thank you Ethan Miller!
I had a Troy-Bilt with the same engine, was a rusted and bent spring. Replacing the spring fixed the issues it was having. Good luck!
Thanks for sharing
Thanks for this content. You’re a great teacher by explaining how you diagnose each issue. I’ve had a snow blower that had similar issues but I was able to get by, by adjusting the choke to clear my driveway.
This is how I fixed it: I bought an 60v snow blower. Lol sorry that was a lame joke. I can say though the electric snow blower has been perfect. Only time will tell how long the batteries last but for the past two years not one hiccup. Also no dealing with gas, fumes, and maintenance that comes with owning a gas blower.
thank you Dao Yang
My opinion, if you had an intake air leak it would affect running at all throttle settings-load or no load. I would look at the governor spring linkage. Perhaps a spring got stretched or tab got bent while the carb was being worked on in the past. I really enjoy your videos!
well said! and thank you Andrew Ebensberger.
Im not sure, however, I had a similar problem with an old Honda mower, I worked so hard one the carb, then the governor started acting up. I would take a look at the governor system and see if that has anything to do with it. Great video!
Thanks for sharing
I have a pressure washer that ran similar to the snowblower, turned out it was a faulty spark plug. Spark seemed good but was cracked or something not exactly sure but a new plug fixed the issue. Another thing would be to reset the governor, it's possible the previous owner tried to fix something they had no clue how to fix. Also as many have stated valves could be another issue. Good luck I hope this helps. Great content as always.
that's something to look into, thank you
I just made a custom mower by putting a bolens engine on a weed eater deck and it works, thank you for everything
no problem
I saw another comment mention air leak at the carburettor spacer. It's a black plastic piece behind the green gasket at 6:51.
I have worked on a few of these engines that have had them crack due to the nuts being over tightened that hold the carb on.
Take it off and have a good look at it. Even a hairline crack will open up once the spacer is under stress.
thank you for the tip!
A lot of new engines are being built and tuned to a point where they are barely on the edge of surging. Changes in elevation can cause your engine to run differently. Now I would check the governor system for any faults but if you were to make the hole in the pilot jet just a bit bigger it could possibly fix the surging.
that makes sense!
I remember the original video on this thing! I would check the valve lash and timing, chances are a plastic gear got misaligned in the governor system.
Or a spring for the governor and gear for the valves
hmm.. that is a very good point.
Great video, it could be the plastic insulator block that goes between the carb and cylinder head, could be warped or cracked causing an air leak.
I'm definitely going to check It out.
Bought a used TroyBilt that had a similar issue. In my case it had funky metallic gasket that was installed on the wrong side of the carb causing an air leak. I’d rule out an air leak by spraying carb cleaning fluid around the area where the carb is mounted to the intake to see if the surging stops - easy test.
thank you for the information
I'd say carb jet stoppage or partial block. I had a 5 horse Briggs that's surge but after it'd run on it's own I'd just put in fresh gas and let it run. It'd clean out after about 30 minuted. Needless to say, that rig is gone. BLESSINGS! And this is why I got an adjustable jet for the vanguard!
Great point!
Air leak but check the spark plug & the engines compression,valve lash,etc as well.
I have had a starting & running problem withy dads Honda GX35 powered line trimmer where it was caused by a bad (fouled & partially shorted out) spark plug.
There was some resistance between the inner and outer electrodes (I found it with my multimeter) & a $2 AUD spark plug which I bought on eBay which came from China fixed it & the line trimmer has done a lot of work since.
thank you for the advice!
I have the same machine and the valves were the problem with mine all I had to do was reset them and it fixed the surging.
I was just watching your snow blowing video, thanks for letting me know!
Sometimes with a engine like that the plastic carb spacer warps and can cause a air leak change gasket closet to engine and see if that helps . Also if it is a clone carb you most likley will need to make idle jet bigger .
nice tip!
I have a same problem with Troy-Built Snowblower, what is interesting is, that its only surging while there is no load on the engine. If you keep driving in deep snow, it runs well.
that is interesting
Good day Do not have enough experience to tell. That is why I watch u Thanks
I appreciate that
I Would Check The Governor Arm Is Not A Bit Too Loose , ( Adjustment ) . I Also Check Your Governor Spring Tension, I Don't Believe That It Has Anything To Do With The Compression , You Could Put A Compression Tester On It, But I Think It Will Be Fine.
thank you Joh Lambshead.
Agree with governor problem...
thank you.
Have seen an odd case once before the carb gasket broke and caused a leak. Obviously not your problem since you had it apart. Nice looking snow blower to find on the side of the road.
thanks for information
I’ve had many engines come In with the same problem and can be anything from an air leak to the governor failing under load. If it would be the valve lash it would act with or without load and would make a noticeable tink at idle
very good answer.
I remember using a new aftermarket carb on my 3750 watt Husky generator when the old one was clogged to where the generator couldn't handle even a quarter of it's capacity.
The new one had fuel issues, and when testing it under load, it just wouldn't supply enough fuel. So instead, I put the old one back on, but cleared the jets. Now it runs perfectly even under a 3000 watt load.
Both the old and new carbs are the same style carb you did in this video.
I assume you drilled the holes in the old carb? Unless there are fuel control screws on that carb (which there isn't any), it could run rich now? But that aside, yeah I think it's a valve lash issue.
thank you for the information
there is a air\fuel mixture screw hidden under looked to be round brass colored plug insert just to the left of the pilot jet on the side of the carb i used a screw driver to pop out the plug to gain access to the screw solved the issue of surging on mine
thank you naodog4, I'll have to give it a try.
I have a LOT of problems with this type of sparkplug boot. Change it to a ngk boot. After that i shuld try to adjust the govenor
thank you Viktor Johansson
To check for air leak after the carb, while it’s running, spray some carb cleaner in the area after the carb and if the rpm’s increase, you have a leak.
thank you Alveus.
Did you try tuning the screw in a bit above the pilot jet? An OEM carburator replacement? On the old carburator there is a screen in the carburator just behind the fuel intake. You can try taking the seat out and blowing high psi air int the seat to blow out debris, then carb cleaner. The replacement carb off Amazon hardly ever works for me. Good luck.
thank you Thomas Roche.
The screw above the pilot jet, only sets the slowest speed, you want the engine to go. Screw it in, and when you move the throttle to slow, that's the speed you've set. screw it in more, and the idle speed, will be higher, it has no effect on the max speed.
I'd try actually loosening the governor tension spring and put it in A hole in the governor arm. It has A very high idle which is not normal. Full throttle might have to much tension on the governor spring.
thank you Casey Still.
Valve adjustment would be my next step after that look for oil leaks maybe 🤷
coming up!
There are plenty of jokes about me being a Floridian, but that aside, that's a very different looking snowblower.
yeah, it's what I would a "light" snowblower. But it's better than those corded electric ones.
It’s a single stage. Good for lighter applications and real good in slushy conditions.
I can’t wait till find out what it is👍🙏👍🙏
thank you RayFpv.
@@HomeGaragechannel I have the same problem with a Toro 98cc snowblower and done everything to it new carburetor new spark plug change out the fuel filter and governor spring. I have taking the muffler off to see if there is build up and nothing. I notice the gasket was a little broken so I put some gasket maker and put back the muffler. I’m not going to give up on this one till I get it running like it should 😤
I appreciate your persistence!
Sounds like either valve lash or possible governor spring issue
both are good places to start. thank you Turningwrenches85.
Three things I hear. Check the valve lash clearance in the valve cover. Then check the float see if level. Then last look at the. MAIN JET use next drill size up to open it up just one size. Example of drill size is .05 mm use next size .06 mm, in any way it's a lack of the proper fuel into the engine worked on many of these motors. Epa stranglehold the emissions tightly
thank you Christopher Tyler.
I would look at the carb & Clean it again just increase something was missed by accident if not I’d look at the valve lash & linkage other then that the engine sounds good 👍 other than the surging 😀😀
thank you Robert Hamilton
Look up donyboy73 hidden fuel filter screen video I believe your snowblower has the same fitting which has the filter in it
I wanna know how good it would work if you took the whole governor out my go kart did the same think until I took the governor out
I'll make an explanation in the next video, but the governor is a self regulating device that's also used, to control max engine speed. you can run without it but it's not recommended.
I think it’s an air leak, I’ve had a very similar problem with a motorcycle before. The intake was cracked. Air leaks are scary especially with a self adjusting carb. great way to get a runaway engine.
makes senes
Governor spring and linkage? May need a little adjustment....give it a shot, had a Toro with a similar issue and thats what it was
makes sense!
@@HomeGaragechannel
Let me know if it works, cheers my friend
My first port of call would be to change out the spark plug just to eliminate it, some resistance type spark plugs can act up at high engine speed causing a misfire which will cause the governor to react.
Next i would check the plug wire for any damage then move on to valve lash.
I don’t think it’s an air leak just because you are not able to correct it using the choke.
If the governor linkage is free of obstruction then that should be fine, it’s just doing it’s job.
nice ideas
I would like to know if you tried the original carb that you modified and how that might work - I have the same snow blower and when I let it sit for a while the carb always acts up. I have been lucky enough to use half choke and it smooths out the rpm. they way this machine is designed you have to take half of the blower apart to get to the carb which is a pain. Let us know how you make out
Check the governor springs linkages check the fuel hose check the manifold for a Crack check for air leaks check your fuel cap see if it's not clogged up!
thank you JJ Juarez.
I had a bigger 3 stage one that did this after being in storage. It didn’t really effect use so I ignored it because I needed to use it. After a 20” snow and hours of use it magically went away. Italian tune up for snow blowers I suppose.
nah.. the running finally flushed out the partial blockage, but you did give me an idea, about just letting it run, and see IF, it clears on its own.
@@HomeGaragechannel I had thought of that and let it idle for an hour but that didn’t fix it. Needed a hard run or at least a longer idle.
makes sense
I have a ryobi 2 stroke whipper snipper, it's recently started leaking like crazy but i can't pinpoint where the leaks coming from but it looks like it's coming from the carb, also when pressing the bulb it seems to suck air, so there's air in the return pipe. Is there any guess on what it could be?
not without more information
Did it surge when engaging auger?
I have this same issue with my Honda mower
sorry to hear.
I have an ‘03 single stage sears craftsman snowblower and it still runs good. Any tips on what i should do when I take it out of storage?
sure, put some fresh fuel in the tank, and then remove the drain bolt and allow about 3-4 oz to leave the bowl, then replace the bolt.
@@HomeGaragechannel Thanks!
no problem
probably a linkage issue or maybe a adjustment on the carburetor aka carby and if that does not work the valves would be the last option etc.
I'll have to take a look .
I did fix one, the original belt is too tight too much friction. I change to a longer belt it is working fine.
wow nice work!
@@HomeGaragechannel The owner broke the belt few times , He was following the part number to get new belt. I found the belt too tight was rubbing against the tension shoe all the time. I switch to a longer belt it is not rubbing anymore when not engage the auger. I build cars I saw enough screw up engineers.
I HATE TO SAY THIS BUT THERE MIGHT BE A BLOWN HEAD GASKET I HAD THE SAME PROBLEM WITH AN OLD KOHLER ENGINE.. NO MATTER WHAT I DID IT WOULD NOT STOP SURGING I THEN REPLACED THE HEAD GASKET, THEN VOILA.. NO MORE SURGING.. RAN GREAT FOR EONS... IF I STILL HAD THE KOHLER I KNOW IT WOULD STILL BE RUNNING LET ME KNOW IFTHIS HELPS
thank you, I'll have to check
try putting the original carb back on,the one you drilled out the bore on the jets
yes I was going to do that next, thank you David Anderson
My first reaction was a problem with the governor
thank you John Walker
i have had this happen to me before its the little tiny cable that hooks onto the throttle thing under the tank
I agree
Carb, most likely the high jet, the way these carbs are set up, it has 2 holes, 1 low and one high, I'd bet that the high is partially plugged
thank you Donald Bower.
Sometimes a faulty spark plug can cause this type of surging. Also, you may have a valve problem. 🤔🤔🤔🤔🤔🤔🤷🏿♂️
thank you Patrick Poulard, I'm definitely going to look into it.
I’ll be honest. I’ve drilled out those plastic pilot jets so many times and they have not worked. I end up replacing the jet with a new one and that solves everything. I can guarantee valve lash has nothing to do with this. This is fuel restriction. And unfortunately this happens on ALL these MTD engines. You can also try drilling new holes closer together on the butterfly plastic plate on the carb, every once in a blue moon that works
I really appreciate sharing your experience with these Cole Steffens
Primer hose and Bulb okay? Did you replace the carb with the correct one?
yes, used model and serial number to find the carb.
@@HomeGaragechannel Ok, also is the governor linkage operating "Free", not rubbing on anything?
Have you had any epic fails recently? Such as an engine suddenly not working anymore while using or an explosion (this may be too extreme) or anything worse?
no nothing like that
@@HomeGaragechannel Glad to know.
I would guess at an air leak between the carb and motor having a leak, choking it a bit would compensate for it.
thank you for the tip
@Home Garage of course it's hard to guess from here, but... that's my guess. I am looking forward to the answer
I appreciate the enthusiasm
@@HomeGaragechannel What can I say? I love motors. The only thing I don't like about yours is that they aren't in my garage where I can play with them. 🤣
Looks like the max speed stop has been tampered with. They shouldn't be revving that high. Reset it to slow it down.
ahh.. you make good point.
If it's an air leak, it has to be pretty massive if applying some choke won't cure it.
I know it's hard to believe but it makes sense
Head gasket...valves need adjusting or burnt..crack in block..do a leak down test..
thank you Rodney Brand
The engine speed goes up and down when you try to remove the snow 😳 check out both carb and the valve lash
Thank you Robert Mailhos
@@HomeGaragechannel you are welcome young man 👍😎
I'll be interested to see what happens. FWIW, the TH-camr Technology Connections claims that his snow blower surged ever since he bought it new, but it still works as intended. Granted, his channel is mainly focused on electronic devices rather than small engines.
thank you for the Connotafoo. I didn't mention it, but did try and use it last year but the problem was that the surging makes it tough to use. Being a single stage, the varying speeds, caused the chute to clog with snow.
The governor shaft needs adjusted. 11:24
You didnt check the compresion as you usually would could be tight rings or valves as you suggetsed :)
Great point! I'll have to that, in the coming video.
Is that carb adjustable if so turn the high speed needle until the engine runs smooth
unfortunately no it's not adjustable
@@HomeGaragechannel I would check the plastic intake manifold for cracks and the breather hose on the valve cover for hardness
I'll have to do that. thank you!
Sounds like governor adjustment.
thank you TargaWheels.
My guesses. 1. Air leak after the carb. 2. Just because you replaced the carb, doesn’t mean that carb is good. Could still be carb related. 3. Governor linkage. 4. Bad fuel. 5. I’d be real surprised if it was valve lash.
thanks again
Get a clamp that stop the gasoline from stream in the rubbertube
I could be the fact it has zero load. Rototillers don't he same thing and clear up instantly as a load is applied
unfortunately I had the same thought and tried to use it this way, and after 2 hours, It was still doing it. But that's was a very good idea.
👍
thanks
see if there is an air leak using carb cleaner spray around the air intake.
that would work.
Ghost in the machine. New carb didnt work so Air mix would be my guess
yes I think you might be right
Spark Plug issue?
hmm.. that's a good choice
I think you have governor issues. Specifically the governor shaft is out of adjustment. There are videos on TH-cam here that explain how to set it.
thanks
Replacing the carb was not a waste of time because it means you can rule out all the parts associated with it that could cause this, eliminating a decent number of suspects for this particular gremlin.
thank you Uncle Ned.
The pilot jet needs cleaned out. That’s what that is. That’s what causes surging.
it's been cleaned and it still does it.
how about a fuel filter.
not a bad idea
Govoner spring maybe ?
it's possible
@@HomeGaragechannel Also use carb spray around intake and gasket's and spacer and see if surging goes away that is tell tail sign of air leak .
Clean the carburatorneedles and the mainneedle ho can let the gas get in to the oil
Gatta change those rubber pads.
yes they are definitely a wear issue.
Morning
morning
Governor or valves.
thank you Bruce Coleman.
you need to clean the carb. Better. The office is closed or restricted on the Ideal Orfice!!!!
sure thing,
Cannot believe you unplugged the power cord by pulling on the wire! Never do that to any power cord!
I was wondering if someone was going to mention that
Governor tension
thank you Robert Simpson
ur governor is set too high, where you have it at a quarter (where it doesnt surge) should be where your full throttle should be at. your governor may be too tight.
thanks
I have the best snowblower there is. Live in the south.
LOL!!
Maybe reajust the govanor
that's a good idea.
Looks like thats a snowblower for ppl in florida
light duty for sure.
@@HomeGaragechannel Super light. Just slightly better than a shovel
Governor issue perhaps?
quite possibly
....definitely air leak
it makes sense
👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼🇲🇽
thanks
I’m thinking the timing is causing this. If your engine is out of time that can cause it to surge. I’d check the valve lash if I were you.
thank you Jake Johnson.