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Old 03-08-2006, 09:07 PM   #1
karl
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master cyl leak

i have brake fluid dripping from between the master cylinder and booster where they mate. is there a gasket or o ring that can be replaced there? none of the parts places seem to have a seal or know where to get one. do i have to buy a rebuild kit to get this seal? this is a 77 half ton.
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Old 03-09-2006, 12:54 PM   #2
Slonaker
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Re: master cyl leak

Your master cylinder is bad. You need to rebuild or replace it. I would replace it with an aftermarket new one, but a rebuilt one will be cheaper.

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Old 03-10-2006, 09:17 PM   #3
tedbick
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Re: master cyl leak

i believe there is a oring in there i think lmc has some listed in there catalog.
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Old 03-12-2006, 07:42 AM   #4
Tx Firefighter
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Re: master cyl leak

If fluid is leaking from there, the master cylinder is bad. Any parts store will have one on the shelf, cheap.

Change it soon, that brake fluid can get into the booster and ruin it too.
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