brake troubles
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Elder User
Joined: Jan 2004
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brake troubles
A while back I had to replace my master cylinder. Upon bleeding the brakes I could not get the rear two bleeder nipples loose on the back wheels. It was freezing cold and in the dead of winter. So I let it go thinking it would be ok til spring. Since then my REAR ABS as well as the BRAKE light have been on. Its been nice the past few days so I decided to try and get them loose. To no avail...I tried soaking them with lube...even tried heating them up with a torch. I can't seem to get them loose. I even went so far to take them to the mechanic., he failed miserably as well. Are there any tricks that I may be able to try to get these things loose?
Senior User
Joined: Feb 2004
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one thing i have done when i could not get bleeder screw loose is to bleed the cylnders with the brake line where it screws into the cylnder. just pump up the brakes, crack them loose,bleed the air out as you would do with the bleeder screw.
last resort i have put some big vise grips on the bleeder screws and broke them loose. it is a shame that there is gorillas out there that over tighten. i would like to find them and get them to loosen the screws back up.
last resort i have put some big vise grips on the bleeder screws and broke them loose. it is a shame that there is gorillas out there that over tighten. i would like to find them and get them to loosen the screws back up.
Postmaster
Joined: Apr 2001
Posts: 3,818
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Mine were similarly "frozen" to the point I had to just replace both brake cylinders. If you force the issue, the bleeder will just break off. Some interaction between the two metals causes the bleeder screw to become almost welded to the cylinder.
Posting Guru
Joined: Aug 2002
Posts: 1,041
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From: Orland USA
Even with the bleeder screw tight fluid is still able to seep around the threads. When you bleed the brakes you loosen it enough let fluid run around the treads
Since brake fluid draws water from the air to it.......
Since brake fluid draws water from the air to it.......
Post Fiend
Joined: Mar 2003
Posts: 14,413
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From: Sarnia, Ontario, CANADA!
Last time I put wheel cylinders on my truck, I removed the bleeder screws and coated them with anti-seize then put them back in. Never tried it before but it might help?! 
I guess I will see!
-Matt
I guess I will see!-Matt
Lead Driver
Joined: Sep 2003
Posts: 7,016
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From: SoCal
I presume you have already tried using a 6 point socket onto the bleed screw and failed to remove it. It may be necessary to replace the cylinder as someone suggested.
I would warn those who plan to use any kind of goop on the threads; you should not allow any petroleum based substances such as oil or grease to get into the fluid. Parts in the brake system are not compatible with petroleum, and will be damaged. It might be advisable to use a little teflon tape to help seal the threads. It may even help prevent the threads from siezing.
I would warn those who plan to use any kind of goop on the threads; you should not allow any petroleum based substances such as oil or grease to get into the fluid. Parts in the brake system are not compatible with petroleum, and will be damaged. It might be advisable to use a little teflon tape to help seal the threads. It may even help prevent the threads from siezing.
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