Master cylinder leak
Thread Starter
Heel & Toe
Joined: Jul 2007
Posts: 20
Likes: 0
From: Littleton Co
Master cylinder leak
Looks like my MC is leaking right where it bolts up to the booster. Does it have a gasket where it butts up to the booster (that might be missing). Or can that be sealed by other methods. Cheers, 
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Unless it's leaking at the reservoir seal, or cap, you've got failed seals in the M/C causing your rear circuit to lose pressure. Don't bother rebuilding it, just replace it. The fluid can get into the booster and destroy it too if you let it go long enough.
Racer
Joined: Jan 2006
Posts: 473
Likes: 7
From: Houston Texas
If you want the best deal around on a new GM/Delco unit then thepartsladi on eBay has an excellent price!
http://cgi.ebay.com/ebaymotors/1985-...QQcmdZViewItem
I got mine there for my '88 and was very happy with the quick shipping and low price for a new in box not reman unit!
http://cgi.ebay.com/ebaymotors/1985-...QQcmdZViewItem
I got mine there for my '88 and was very happy with the quick shipping and low price for a new in box not reman unit!
