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Old 12-06-2005, 11:33 AM
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boneheaddoctor boneheaddoctor is offline
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Join Date: May 2004
Location: Hells half acre (Great Falls, Virginia)
Posts: 16,007
Quote:
Originally Posted by guage
So last nite @ 10:30pm with a outside temp of -2F, I was in my non-heated garage separating the above mentioned items.

I could only pull the master cylinder away from the booster about a 1/2"
for fear of kinking a brake line.
No fluid any where, and I didn't see any gasket either.

I remounted, started the car and pumped the brakes, this time I did notice that there is a slight fade fell in the pedal.
This a good sign of a bad master cylinder?
look closer you will see a squished O ring thats mighty flat.....there is something that seals in the vacuum.

if you have a sinking pedal under steady light to medium pressure get a new master cylinder ASAP before it fails all together. Thats the first sign you usually get when they are failing.....many people never notice it untill it dies altogether.
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1971 280SE W108
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1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
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