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Old 09-29-2000, 11:45 PM   #1
scavenger
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How to remove frozen bleeder valves

Need information on how to go about removing frozen bleeder valves on the rear wheel cylinders. I have already tried PB Blaster and tapping on them but they will not budge. One rounded off and I think the other will twist off. Any ideas short of getting new cylinders. I was told that it may be possible to bleed the brakes by cracking open the brake line at the wheel cylinder, but I would think that the brake line fitting would be just as stubborn as the bleeder valve. Also I don't know how you could possibly get all of the air out by loosening the brake line. Any Ideas?? ....thanks

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Old 09-30-2000, 06:58 AM   #2
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Re: How to remove frozen bleeder valves

no go on the brake line bleed..you'd still have air in the actual hyudraulic cylinder bore...you could try and heat the bleeder area a little bit with a small torch....or, just go and buy new wheel cylinders...they're only $8.50 at PepGirls!

-Bart

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Old 09-30-2000, 08:35 PM   #3
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Re: How to remove frozen bleeder valves

Buy new ones.
I don't know about the quality of Pepboys stuff, but the GM ones are about $25 each.
Sounds like a lot, but a buddy just replaced his on a 77 - OE lasted more than 20 years.
-- Mike

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Old 10-01-2000, 12:07 AM   #4
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Re: How to remove frozen bleeder valves

The same thing happened to my Dana 60 calipers up front. Both sides broke off the bleeder valve and then I tried an easy-out and that broke too. I finally had to get new calipers but at least I know both are good. Pep Girls sells Raybestos wheel cylinders. I upgraded to larger wheel cylinders on my Typhoons rear drums a while back and Pep Girls had the best price on the Raybestos cylinders.

Shawn
87 K5
few mods
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Old 10-01-2000, 01:50 AM   #5
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Re: How to remove frozen bleeder valves

Thanks for the info. I am going to try heating around the bleeder valve. A local brake shop owner told me to heat an area approx 1/2 inch below the valve until it just starts to turn red, then spray it with cold water to cool it down quickly. Evidently this makes the metal expand and contract which will break the 15 years of crust on the threads. He said to do this about 3 times in 3 different spots. Says it has always worked for him unless someone has previously cranked on the bleeder valve and it started to twist....thanks again.

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Old 10-01-2000, 12:47 PM   #6
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Re: How to remove frozen bleeder valves

When you put the new bleeders in, coat the threads in neverseize. They spin right out even after 5 years of NY winters.

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