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dubyaohohdee
Добавлен 10 мар 2008
How To Remove Stuck Piston From Brake Caliper Using A Grease Gun
This video was uploaded from an Android phone.
Просмотров: 92 837
Видео
Hop Rod Gas Powered Pogo Stick
Просмотров 43 тыс.15 лет назад
Found this video on www.thehoprod.com but it was only in quicktime .mov format. Site appears to be dead now.
So' i nearly Sure! If i buy on. Be'cose Not too' much Name: teuer & Open the stuff by porting + ignition ⚡ meby the Hop Go Up. Eany Body oudthere ? Ho think the seme Idea.
My GOD, a Springloaded Jawbreaker powered by a Two-stroke Engine! The equivalent of multiple fast uppercuts if the feet slip off the pegs. Damn! LMAO 🤣
Imagine going to work everyday with one of those! Lol
I like the choice of songs you choose!
Doesn't seem like there's too big a difference between firing and not firing...at least not in amplitude.
Actually there is a huge difference. When it reliably fires, you can just balance and it pops you up each time you go down. When it misses, it almost stops abruptly.
I had a hop-rod in the 70's. I started out with the recommended 20%nitro glowplug engine fuel. I could get 7 or 8 feet. 40%, the highest available back then, got me a few more feet. I was a daredevil, had no fear, raced motocross professionally and the bike shop where I worked after school sponsored a top fuel motorcycle drag racer so of course I had to try 100% nitro with just a touch of castor bean oil for lube. Holy shist! That bordered on scaring me. After a couple of bounces to build heat and compression, I could see over our ranch-style home's roof. Starting and stopping was interesting too. I had to hit the ground at an angle just in case it didn't start but when it did fire, it was like a sledge hammer! I'd go off at about maybe a 30 deg angle but then have to get myself oriented vertically before the next stroke. The only time I got thrown off was when I failed to achieve the vertical. Getting stopped was interesting too. I'd bend my knees to absorb some of the thrust so that I achieved less and less altitude until I was down to 2-3 feet. Then just step off and hope that the loss of mass wouldn't compress the mix enough to ignite the mix on the slight compression. If it did fire it would toss the thing out of my hands. The only major problem was the piston stop damper. the stock material was a donut of some kind of hard rubber that fitted over the shaft between the piston and the cylinder base. With nitro, it would pound out in just a few minutes. Our senior engine builder, a fine one-eyed man (playing GI-Joe with BB gunes) named John Davis designed something that lasted. I don't recall what he came up with, being 16 or 17 and interested in far more interesting stuff - like girls :-) His attempt at making a new head with 2 carbs, one running 100%nitro and the other hydrazine is a whole 'nuther story. To make a long story short, the cylinder burst. John
I was told by some guy from Chance Manufacturing to use white gas aka Coleman lantern fuel. It turns out the “engine” was made by Aermacchi, the Italian company that made the smaller Harley Davidsons. If I ever resurrect mine, I’ll try some “cox” fuel. First, I need to improve the ignition as it is so unreliable. I will probably use an arduino with an accelerometer to force it to fire after TDC.
@@bretfuzz925 An arduino on a hoprod? Man, you'd complicate a BJ, wouldn't you? All you need to make a Hop Rod run reliably is the correct fuel and a clean and adequately lit glow plug. The flashlight batteries of that era were not capable of driving the glow plug adequately. I solved that problem by paralleling 2 Mallory (now Duracell) alkaline D cells. These were the good ones before they removed the mercury. That setup would light the glow plug a bright orange.
@@neon-john haha! Thanks for the reply.. The “glow plug” in mine was damaged and when I rebuilt it with a friend at a place we worked at. I made a similar spring out of a piece of guitar string. Perhaps it was meant to be nichrome wire and would retain heat and act as a glow plug so you may be on to something there. The “flapper valve “ in the piston was not working so we took it apart and cleaned it. Also replaced the bumper with some different material as we worked for Gabriel (shock absorber) company at the time and they had special materials for that purpose. I haven’t looked at it since 1991 but I recall a coil at the bottom of the stack of batteries and figured it was meant to throw a spark after TDC when the piston is moving away and the circuit is broken as the tip of the spring touches the piston before TDC. Perhaps someone else on this thread can put in their 2 cents but these things are kind of rare and there is little to go off of.
Thank you dubyaohodee
you will never get all the different solvents,cleaners and grease out, to be confident your not fIn up the whole brake system,,cheaper smarter and faster,just to buy new. its only one caliber but that just my 2 cnts
Pretty sure the recommended fuel, back in the day was - model airplane fuel like the stuff made by COX.Sold mine years ago on Ebay, and got a great price for it.
White gas aka Coleman lantern fuel
This will defenitely come in handy. I unscrewed the end cover off the grease gun hose and the hose threads match the hole where the brake pipe is screwed in. I guess you open the bleeder screw and pump until grease comes out of the bleeder much like you bleed brakes and then close the bleeder and pump the stuck piston out. I'll give it a try today and let you know.
Just tried it and it works beautifully. I got my final piston out and didn't even break a sweat! Thanks again for this help.
DO NOT PUT YOUR FINGERS NEAR THAT PISTON !!! THAT THING CAN SHOOT OUT LIKE A BULLET AND BREAK YOUR FINGER IN HALF !!!
thank You! worked a treat
Horrible idea. You don't introduce oils or solvents into the brake system. This advice could lead to replacing everything in the brake system costing thousands of dollars rather than a hundred or so
Obviously you only do this if you're doing a refurb and you'll obviously clean out the piston before you put everything back together
Just buy the bloody things lol
Yah well i just bought a new caliper for my s10 for 40 bucks, not going to grease up that thing and create a potential failure when i rebuild it..
If it is new it shouldnt be stuck though right? Either way just clean it out after and you are fine.
dubyaohohdee good luck cleaning out the small channels in the caliper..i just bought a new one fuck the old one lol. It's not that expensive to get a new one. It's my BRAKES after all ...
How you going to get all of the grease out
You clean it out after taking the caliper apart. That's the whole point after all.
I'd be so nice if I only have one. I have 4 piston calipers from a 65 AMC marlin and 3 of them aren't stuck, one is, and one of them has a bad seal. This means whenever I go in with compressed air (and probably grease too) it just escapes through the bad seal and leaks out...
This is a good way if you forget to pump the piston out with your brake pedal with the caliper still hooked to the car.. With two or more pistons stop the pistons that protrude the most with C clamps so you can maintain pressure to the remaining piston(s).
This method worked with ease to get the pistons out, but a bit messy with all the grease in there. I did it on my cb750 dual piston calipers. Any tips on what type of degreasers to use to get it all out of the chambers? I assume some mineral spirits and compressed air.
Yeah pretty much. I do not remember what I used. Paper towels for the bulk of it and then probably wd40, engine degreaser or brake cleaner followed by compressed air.
good tip, I just got done using compressed air and almost shot myself in the balls
nice balls
The Lawyers would have a Field-Day with this thing if it was sold now.
Fantastic! Never thought about doing it this way. It really makes sense though with 10,000psi coming out of a grease gun.
Oh .. Auction Kings contacted me for help. I told them last time Discovery Channel contacted me they never sent me anything they promised. Auction Kings stole part of my video and broadcasted it. I know this cause I converted the film and it had imperfections that are like fingerprints. Also the show sucks too .. and the chick the almost broke her ankle / chin would have got a warning from me if they would have been kind enough to not rip my work off. Auction Kings Suck it.
It was my site and I have to rebuild it soon .. stay up[dated. Hope u like our video!!!:)
Thanks for the video, glad I found it today, I wouldn't have thought of doing that. Mine was a bit more fun with two pistons!!!
make sure you have the bleeder screw opened
Why does the bleeder screw need to be open
@@juanchoman9824 because that's where you're pumping it in.
If it's closed it won't go in
someone shold try it with nitro methane
Excellent video! This helped me free my seized caliper piston successfully!
Sorry not sure. I just used the same grease gun I use for every other grease fitting. You can buy new fittings at the auto parts place if yours is somehow messed up or the "wrong" size.
Having an issue.. Is there a special attachment because I'm not getting a proper seal between the nipple and the tip of the grease gun...all the grease seeps out ?
This worked great for me. I tried everything else. I used paper towels and brake cleaner to get the rest of the grease out.
Not sure. I believe it is corrosion on the piston. The two parts are so closely machined that any kind irregularity causes an issue. If I recall correctly, i sanded my piston with some 2000 grit sandpaper before reusing. It slid in easily with no problems. NOTE: Everyone I spoke to said no to reuse the piston if it has corrosion. I did and it works fine, but that may not work for you.
I have an 81 Yamaha XS 850. Used this trick and it worked nicely. What causes the piston to stick? is the seal inside the sleeve swollen? Should it slide easily? or should it be a tight fit when I reinstall it? Thanks
Paper towels and nitrile gloves to get 95% of it out and then just a random spray can degreaser from the autoparts store.
What did you use/how did you clean it after it was filled with grease
i had no doubt about it, but how about the other side of caliper it has piston too, how can you remove it?, we all know that it was seal it has no fitting to attach the grease gun. pls make a video that shows how to remove the other side of the caliper's piston thanks...
This method is a great way, I had a seized caliper on my MR2 it was a twin piston one, the only way i could get them out was using my 20ton jack handle press which works the same way as a grease gun works, it was almost like some bugger had welded the pistons in there, one piston popped out first, then i had to put that piston back in enough to hold a seal but enough to get it back out I held that with a g clamp so the other side would press out
Big difference with the fuel. I do not remember the commercial. But,I did try to use a Pogo stick,looked like this kind. Did not have fuel. So, I hopped maybe 6 times. Good video!
I am a disabled vet I am on heavy medications including morphine . I spent 7 years in the NAVY and would have stayed if I did not take a shot in my spine . Did you do any thing for our country ?. I also have a bad hearing loss and vision . I live off a 100% disabilty . I made over 5000 a month while on active duty . Now I live off base pay do to you lose all special pays when you go out on disabilty. My talk to type does not do grammar very well either. Next time ask before cussing
Thank you for your service and sacrifice. I sometimes wonder about bad grammar but I never thought about talk to type. You have educated me. God bless you.
Oh, you are right. I dont remember. But i would have used some Marvel Mystery Oil. Like I said in the vid though it did nothing. Just go straight to the grease gun. Super simple.
Ok, but at 1:26 you said you let in sit a day with solvent in it. What solvent did you use and how? I got a stuck piston that I'd rather rebuild than throw away. Thanks.
Hi very good video. By the way in what solvent did you let the caliper soak in for a day before applying the grease gun? I have a caliper to work on and you just gave me an idea. Thanks.
action kings ftw
Pretty much - Search youtube for "Nissan LEAF: Gas Powered Everything commercial " I would link, but YT doesnt allow.
is/was everything in America powered by gas?
Very effective, but a bit anticlimactic.
here by action kings also haha
i so want one >.< i am really good at pogo sticking and do stunts and stuff so it would be epic