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#429879 07/06/2008 1:51 PM
Joined: Jun 2005
Posts: 1,756
G
Shop Shark
Shop Shark
G Offline
Joined: Jun 2005
Posts: 1,756
Installed a new master cyl. last week. it is leaking around the area where it bolts to the vaccum cyl. Is it bad or did I do somthing wrong?

gazim #429887 07/06/2008 2:18 PM
Joined: Aug 2007
Posts: 1,082
R
Shop Shark
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R Offline
Joined: Aug 2007
Posts: 1,082
having problems on my new install myself, but not that exact problem.
did you bench bleed the master before you installed on the truck ?
my instructions say put master in a vise, fill with brake fluid and wait 10-15 minutes, to let the fluid get around the shaft seal. then procede to bench bleed, pushing in on the master rod very slowly, and releasing.
see, if you dont get fluid around the seal, it says it is possible to roll that seal over and damage it.
not sure if that is your problem, but if you didnt bench bleed maybe that is it.
good luck..i totally hate brake systems now, thanks to all the trouble i am having with mine..

leonard


1957 Chevy 3100 1/2-Ton
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RATRODKING #429899 07/06/2008 3:21 PM
Joined: Jun 2004
Posts: 8,597
W
Riding in the Passing Lane
Riding in the Passing Lane
W Offline
Joined: Jun 2004
Posts: 8,597
If it is leaking around the front piston you have a defective MC.


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum
Joined: Jun 2005
Posts: 1,756
G
Shop Shark
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G Offline
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I bench bleed it, Will remove it today to see what is wrong maybe. I suspect a defective cyl.


Moderated by  Gdads51 

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