Another attempt to fix the brakes on Bubba Dump ends in disappointment and failure again
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- เผยแพร่เมื่อ 28 ก.ย. 2024
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Not giving up, Bubba Dump will have brakes....eventually.
#BubbaDump
#haultruck
#shopwork
#repair
#newbrakes
A pallet jack works real well when removing big tires. Also had a j-hook in my service truck for field work. Reminds me of old times.
Hi Mike, I suspect your missing an aluminium spacer that goes between the booster and master cylinder, the spacer could also have a shaft seal in it
If you don’t change the mod you should seal the gap between the booster and master cylinder to stop water and mud from getting in there
Good luck
I was thinking a copper gasket machined to fit would be a good answer for long term. Like a copper head gasket for high performance piston clearance on the old V8 engines. Just over drill for the shaft and put gasket seal on both flats of the copper. That is the hillbilly engineering we would do around here.
Honestly, I have no clue about brakes or calipers or really not much of mechanics, but I do know what holds my interests when it comes to watching a video...this channel is it! I just like watching you fix things and watching you move dirt! Thanks Mike and crew for sharing!
Appreciate that
The strike marks are on the flat side due to them taking the backs off the calioers and driving the seized pistons out, and since no one has mentioned it. You put the pistons in backwards.
I learned my lesson about telling you you did or are doing something wrong, I prefer telling stories of my experience. I once needed a new O-ring and substituted a neoprene O-ring about 2 weeks later the piston started leaking brake fluid like there was no tomorrow, took the tire off and said OMG there's a huge black worm on my caliper, it was the O-ring it swoled up about 80 times it's original size, I knew there would be some swelling but I had no idea, I imagine hydrocarbon grease is hard on rubber O-rings too silicone grease or assembly lube(really thick brake fluid) is proper. Have fun Mike Bubba Dump is a real nice truck. I think some one has a monster truck made out of a Volvo haul truck, 'course it has a 2000 horse power diesel in it.
Well, old stuff can have an endless list of problems. Wish you and Bubba Dump a happy end! 😁
the piston goes with the hole outside ,when you bleed the air cannot get trapped in the hole
Pistons are backwards flat side in you will never get the air out with the cavitys. Always flat side in
and you needed to wash the caliper with breakclean them lube it with the brake fluild the parts washing fluild you left will distort and make the seals swell. >> master tech 42 years
Plan worked perfect
pistons are definitely in backwards .
@@ronmiller7181 yeah they definitely dont know what they doing :)
Plan must've been to purposely screw up for everyone to comment and gain TH-cam algorithm points
I was screaming at the TV . . . "You are putting the pistons in backwards!" It was like watching a train wreck in slow motion. And never, Never, NEVER use regular grease to lube internal brake components!!! Especially if there is direct contact with brake fluid.
Well, it’s a great way to practice brake jobs. Repeatedly. I would have thought these guys knew better than this clown show!
I feel your pain Paul I was doing the same thing must have posted to half a dozen posts wrong wrong Greece pistons and backwards and this is why people hate to pay mechanics a mechanic's real money money because we've had the education and we know what we're doing
@@jenniferneumann716 They filmed the disassembly. How the hell can they reassembly the frickin caliper with the pistons backward?!? I enjoy the channel but these guys create more work than they accomplish.
Plan works perfect thanks guys
@@DirtPerfect Oh I see, this way you get lots of "hopefully" useful advice!
Hey Mike the caliper does not slide slide it is a 4 piston caliper that is how it compensates for any rotor movement allows it to wear both pads evenly four piston calipers or calipers with pistons on both sides do not float they are affixed via bolts
Hey DP,
Some of those air chambers are adjustable from inside. All you need to do is remove the clamp, end cover, and rubber diaphragm and adjust the double jam nuts in or out on the service rod (the part that comes out of the chamber and into the hydraulic piston.
Those are single action chambers with only a light return spring for full release. The jam nuts control how far the rod travels out of the chamber. Your washer method will accomplish basically the same thing; however, adjustability is limited.
On the relay diaphragm you should be able to remove the cover and replace the rubber diaphragm to repair the leak, but your replacement relay looks like it should function the same way or similar, just make sure that the air flow control matches the other chambers for equalized braking pressure.
Your solutions certainly look like they should work just fine. It's been about 35 years since I worked on big equipment, but most of the mechanical parts still operate the same, mostly the ABS and electronics have changed.
I will say that the next guy to work on that will likely scratch his head wondering what that valve came out of. Maybe make a note in the repair log??? Who am I kidding, a repair log from DP??? Happy hunting guys.
@@markpashia7067 Not really. Those a common valve on US made trucks. The Volvo just happens to be European.
Unless there is a specific cross referenced part, most mechanics will figure out what up.
you put the pistons in backwards, the dirt being inside the hollow pistons shoulda been a clue :)
Me thinks somebody should'a looked at the parts book! Will we see a companion video showing them putting the pistons in correct orientation? Hmmm....
Well. He might see if you’re correct when he gets into that other caliper that’s leaking.
@@Crewsy its a piston the flat goes toward pressure side, 30 year tech here lol.
@@RichardHeadGaming and the pressure comes from behind the pistons pushing to the pad and squeezing the disc.. Thier on backwards -_-
@@POSSIBLY.USEFUL pressure side is oil side. he is agreeing with everyone
Perseverance and determination are certainly two of your many traits Dirt Perfect. Bubba Dump will eventually be a working asset that is for sure. Great learning video.
Let me say, I know nothing about o-rings! Thought you might appreciate that!
Would you post the model and serial number of BubbaDump, it could be that subscribers might have some parts and or Service Manual laying around that might help?
Love watching the shop shows, always very informative!
I glad Im not the only one that notice they put it in backwards
A little dirt in my coffee this morning is always a good thing...
Looks like you guys fixed one problem but found 2 more??
I have no doubt you'll eventually get all the brakes all working on Bubba Dump.
Great video once again... 😎👍
Like watching a Chinese fire drill
Just here to see all the master Volvo techs comment on everything that wasn’t done right. 😂
Like someone else said, you put the pistons in backwards on the calipers, probably took a lot more fluid to bleed and likely has air pockets in those holes.
Yep.
Yep pistons in backwards 1st mistake. Using grease 2nd mistake. As grease deteriorates the rubber O-rings. Your supposed to use silicon grease or lube as for the master the stroke is adjuster by turning the booster pintle. You never use washers as the will rub and wear the bore and could jamb up destroying the bore
Never used anything but brake fluid & patients
@@stevenr8606 what kind of patients though?What if they’re to sick to help?🤷🏻♂️😜
@@stevenr8606 yes brake fluid or inert silicon lube because it has higher boiling point does not deteratrate orings and seals and is non-hygroscopic or you can use silicon brake fluid or conventional ethylene/propylene based fluids
grease is a no no .with brake fluid ,we use silicone base lube as assembly lube
Hi Mike. I would not call it a defeat because you found new problems. Soon the issues will be fixed, and you will have all of the brakes working.
Have good days!
The question should be "can I afford to not have a service manual?"
Noticed the solution to all the mechanical issues at about 41:25... all you're gonna need to do is add a Pepsi sticker and full performance garunteed !! 🤣
Yep, I agree, you two will get it fixed eventually. You're going to be experts when it's done.
3:30 What they are actually saying is ..You need a D11 and a Mahussive Scraper Mike 😉👍🏼
Sure the Tile will pay for both this Summer (when it eventually arrives in Derby) .
The Bluetooth drive shaft 😂
It's been a while, but for some reason I remember that petroleum based products don't play well with brake fluid. I believe that the grease may actually destroy the o-ring.
What I was thinking is these guys don't kill somebody when they try to stop shish truck they will be lucky . Maybe the DOT will see this and shut them down before they ,you right grease and brake are a big no.
Heckle & Jeckle strikes again in this video!!!!!
...lookin' good, nice job, stay well...
It's fun watching someone else fumbling with brake problems
Great video maybe you should do all the brakes calipers since you fix one and another one lets go and so on.
Great video keep it up.
Enjoyed the video lads, you must get a manual happy days.
Got the wrong end being greased right away as you were talking. Ooopppps.
Good thing you caught it before trying to shove it in. 🤪
Brilliant work and thanks for sharing this funny and great content. Take care
Here I thought this channel was safe for children!!!! Wow, the joys of owning used equipment just keeps on giving..
Yup new equipment is much worse think got I don’t have much of it
In watching the video you installed the pistons backwards o what hey were removed
Plan work perfect thanks
Selective editing, genius.
All the issues you are finding are the regular "running" maintenance that needs to be done on these trucks. I look after 14 of them. Whoever put it to auction ran it saving up for a new one doing no maintenance. All those parts still available, just! but once done and you maintaining will last years. Air valves and pipework for 6wd and lockers is a pain, often it is the diaphragms just under the "air inlet" plate that fail. cheap and easy to replace ;-)
Use a micrometer and check the size of those pistons . Might have to
Also blow out airline and check and inspect kinks or defective airline
Mike, just curious if the brake chamber on the front dif is like the rear to use as a comparison to see the difference in the cylinder travel?? Just asking. The travel seemed to be much more than needed. Your troubleshooting becomes our troubleshooting….lol.
I like the subtle difference between "I left it " and "you threw it"
A rhetorical question: How do you find the time to film edit film, read and reply to comments?
Just wondering Mike, you were trying to think of something else that needed to be sorted. Could I suggest that it is the exhaust system that needs to be standardised?
Cant begin to tell you how much i appreciate no music on your time lapses, i get a laugh out of it sounding like 2 chipmunks talking when you do it. Make you a spacer out of flat plate aluminum on the master cylinder
Having no mirrors should have a codename. Code Kleeman
I'm at 2 days working on one of my main production machines and thank God I had the spares I need in my ready service spare supply.Fix one thing and find 4 more issues, Fix those and find more. All part of it.
The ever popular "While I'm in here just as well fix this and this and so on."
@@kenore4003 yup.
Nice job 👍
You should use brake fluid for lube. Petroleum products will cause seals to swell.
I agree. Vaseline always causes me to swell. But at the correct time.
all the innuendos flying in this one 🤣😂🤣
Might the piston be undersized, that's leaking..one because of honing and rebuilding
Abbot and Costello ride again!!
This was one of those "dammit" days but you'll get it done.
piston in the caliper ouch
love it mistakes an all lol great content on a rainy jubilee day in london thanks guys
you guys is the best, but i really miss the litle dawrf
Bubba takes a dump on Mike's Bank balance.
Good video Mike like it .
Thanks
I always give you thumbs up before I'm start watching your video Because I know it's gonna be a good video
Thanks buddy
Equipment work is never done DP great video
damm a crocked long shaft lol
Is there an online service manual available for the haul truck?
Are those multi-piece rims? I'd advise deflating the tire (to a minimum pressure) before removing it. Use a cage and at least a hose whip when inflating.
No
pistons are on backwards and use rubber grease on brake parts
Plan worked perfect thanks
You mentioned that caliper should 'float'. Were you aware that OPPOSING piston designs mean that the caliper itself does not need to 'float'? (The pistons should self-center the pads on the rotor)
When is Lt Dan coming. Back
Good Job Guys....
Thanks
Mikey… getting a Shop Manual might be quicker and cheaper than getting more parts! LOL
Great video buddy 👍
Have you given up on Lt. Dan? Thank you and have a good day.
No covered that in several videos
That's Karma getting you for not working on Lieutenant Dan!!!😌😌😌😌
I think the two of you need to get a room. Lol God bless
You put the pistons in backwards.
Plan worked perfect thanks
Mike what kinda grease are you running? Looks like some good stuff.
Trc
Hard to find good help? After watching many of your videos, I think that is one thing you have done well. You seem to have accumulated a very solid core of good guys. Are you worth them? Lol
Get yourself a tube of Sil Glyde for those O-rings and you're golden. I know this has been beaten to death already, but from the looks of it, whoever rebuilt that caliper put the pistons in backward. They definitely came out the way you put them back in so it was wrong long before you worked on it. If they were in correctly, the hammer marks would've been on the other side. It's obvious the previous owner didn't care much about brakes. Or working brakes, that is. Fixing someone else's mistakes always sucks.
You underlined the fact that one of your piston had a dent in it. Could it be that the dent is allowing fluids past the seals?
Since you opened yourself up to it with the "more qualified than the last person" comment, although everyone commented about the pistons being in backwards (nice touch bringing the internet into agreement, not something seen often), no one seems to have covered the importance of correcting the issue. Even though the piston vertical surface area is the same between the front and rear, the cup portion allows for outward expansion of the cup under increased load. The piston diameter will increase and eventually the piston will expand into the bore and never move properly again. There is no way to properly bleed the air from the caliper body with the pistons in backwards, squishy brakes from squishy air.
One last thing, correct me if I am wrong here, but the way the calipers are designed allows you to install the caliper without the pads in. If this is the same style caliper that is. You can change the pads without having to remove the caliper from the mount, just pull the caliper sliders and the pads will slide out from in between the rotors and pistons.
Plan worked perfect thanks
Whats the year and stuff on bubba dump? Pretty sure i still have a service manual from the one we use to have at work that i can send to you. Assuming that its the correct one for your truck that is.
97 a 30c
C&C here we come
Hmm
Mike would Mr hoover approve of that 👍
Yup video posted
Where is Clint YOU Need him!
Who is that and why plz explain thanks
I have no idea what I'm doing, but as a citizen of the interwebs I feel it necessary to parrot what I've seen in the top 5 comments and tell you that you installed the pistons backwards.
That means my plan worked perfect
Hey Mike I hope that Grease is brake component rated as petroleum based products will damage breaking components i.e. The rubber seals will break down very rapidly should have used brake fluid or had bought a name brand grease that is designed for brakes called silglide... Sadly most see Jennifer and think what does a girl know.
Great video ... shame you put the pistons in backwards
Plan worked perfect thanks
Love the video you will get everything worked on it bubba dumb you guys got it and remind me of me and my friends busting each other to have a good time while work in things
Thanks
@@DirtPerfect welcome
What year was baba dub
To me it looks like the break wheel is slanted in the slot of the two pressure pads. If crooked on the axis - the pads won't touch all surface. All this pain and no Lt. Dan.
Mike I bet your logger Wade has the service manual for his Volvo you might want to ask him if he's got one this is Bob from Vero Beach Florida God bless and have a great day and please stay safe cuz I've done those brakes myself wasn't one of those actually two of them and I know it's not fun okay
That was entertaining, thanks.
i was getting o-rings and backup seals for old John deere SCV hook up parts man said just like riding school bus back in the day black/oring up front white/back up ring in back I'll never forget that
Pistons go the other way. Cavity out towards the caliper. You put them in backwards. All you will do there is have a bunch of air that you can't bleed out.
Plan worked perfect thanks
Go look back in Video when you took out plungers flat side to fluid. Use 3 M break clean watch Wes Work uses break fluid to reinstall not grease you ve sorry .. Got a machine shop around to turn you a new caliper piston to replace the damaged one Booster piston may Been put in backwards by manufacture ( ( like the caliper pistons smother side out ) ) my guess got to be flush . . buster can to plunger. Can look at a car or truck one no washers dirt get in there will destroy your new part
I always marked with a Sharpie direction of things when pulling out. She said. ? Note when taking apart the other leaking caliper make note yeah a pre clean would be helpfully. Well Mats workout carrying the caliper.
Im learning right along with you Mike & Matt
DP just a observation, but pistons are in backwards (35 yr tech )
Plan worked perfect 5 year TH-camr 😁
Hi Mike probably been told already pistons wrong way round hollow to pads. Grease oil impregnated soap not good for brake seals, rubber grease. Built like brick sh** house won't matter until next time👍👍👍👍 manual on pdf think let's dig got it on pdf
Plan worked perfect
If TH-cam allowed Videos in the comments section I'm thinking some of the Videos, Comments might compete with each other for Thumbs 👍👍👍👍👍up as people tried to share creative thoughts 😂😂😂. BTW , 😮 you installed the brake pistons, cups backwards, 😂😂😂😂❤🔧🤔💯☘️☘️☘️💰👁️🗨️👁️🗨️
#4,323 to tell ya... the calipers are in backwards dude .. hehe
Plan worked perfect he he
12/64, 6/32, 3/16
Check a brake can. It might be similar
Millville is soo much more vocal than the man behind the scenes
Millennial
Anyone from Ireland that wants a Dirt Perfect hat?
I will be traveling to Ireland next month and if you want a XL hat I will post it when I get there, no charge!
Isn't that always the case when fixing stuff. You find other stuff someone left.
Yup
Is that a long weld crack all the way across near the blue jack?
No sir