Started replacing the Master Cyl.. (pics)
Thread Starter
Team Owner
Joined: Sep 2001
Posts: 30,958
Likes: 0
From: Middletown Connecticut
Cruise-In IV Veteran
Started replacing the Master Cyl.. (pics)
Out with the old 
prepping the new
I already bench bled it, and I hope I did it right. Normally its just push the piston till fluid comes out of both inlets right?
I bolted it up this afternoon and tomorrow morning I'm gunna start the full system bleed
prepping the new
I already bench bled it, and I hope I did it right. Normally its just push the piston till fluid comes out of both inlets right?
I bolted it up this afternoon and tomorrow morning I'm gunna start the full system bleed
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
replaced mine a while ago.. One of the easier jobs that I've done on the Vette.. I was surprised how little work it actually was..
Safety Car
Joined: Jun 2004
Posts: 4,652
Likes: 80
From: Lakeland Florida
Corz,
How difficult was bench bleeding the master cylinder. On my 72 I have a very spongy brake that doesnt work until it is almost to the floor.
I am planning on replacing the rubber brake lines with braided steel and know I have to bleed the brakes. But I also want to bench bleed the master cylinder to insure that no air is in that also.
when I take off the master cylinder is bench bleeding it pretty easy? It looks like you have to check that no air is trapped in the forward cylinder is all.
kdf
How difficult was bench bleeding the master cylinder. On my 72 I have a very spongy brake that doesnt work until it is almost to the floor.
I am planning on replacing the rubber brake lines with braided steel and know I have to bleed the brakes. But I also want to bench bleed the master cylinder to insure that no air is in that also.
when I take off the master cylinder is bench bleeding it pretty easy? It looks like you have to check that no air is trapped in the forward cylinder is all.
kdf
Thread Starter
Team Owner
Joined: Sep 2001
Posts: 30,958
Likes: 0
From: Middletown Connecticut
Cruise-In IV Veteran
Originally Posted by kdf1986
Corz,
How difficult was bench bleeding the master cylinder. On my 72 I have a very spongy brake that doesnt work until it is almost to the floor.
I am planning on replacing the rubber brake lines with braided steel and know I have to bleed the brakes. But I also want to bench bleed the master cylinder to insure that no air is in that also.
when I take off the master cylinder is bench bleeding it pretty easy? It looks like you have to check that no air is trapped in the forward cylinder is all.
kdf
How difficult was bench bleeding the master cylinder. On my 72 I have a very spongy brake that doesnt work until it is almost to the floor.
I am planning on replacing the rubber brake lines with braided steel and know I have to bleed the brakes. But I also want to bench bleed the master cylinder to insure that no air is in that also.
when I take off the master cylinder is bench bleeding it pretty easy? It looks like you have to check that no air is trapped in the forward cylinder is all.
kdf
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Originally Posted by Corz
it was pretty easy, I've done it before on a PB car.. just getting 35 year old brake lines off werent so easy 
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Race Director
Joined: Sep 2002
Posts: 10,362
Likes: 5
From: San Diego - Deep Within The State of CONFUSION!
I am planning on replacing the rubber brake lines with braided steel and know I have to bleed the brakes. But I also want to bench bleed the master cylinder to insure that no air is in that also.
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No. Don't re-bench a used master. This is something that's only done when installing a new one.
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No. Don't re-bench a used master. This is something that's only done when installing a new one.
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Originally Posted by joe73vette
I just replaced mine, too - is there any reason to save the old one? I don't need a core credit. Do people buy used ones? Joe
Bleederless non-originals are generally junk..... worth maybe a core charge if you paid it.
Pro
Joined: Dec 2002
Posts: 560
Likes: 1
From: Mooresville NC
The last master cylinder I bench bleed, it came with two plastic plugs that fit where the lines attach. The directions said to push the plunger in slowly to about 1/4inch from bottoming out and slowy release. Repeat until you have no air bubbles appearing. Or if you have the plugs with the platic tubes, put the tube ends in the brake fluid and do the same procedure until no air bubbles appear from the tubes.
Tech Contributor
Joined: Aug 1999
Posts: 15,154
Likes: 3,959
From: Connecticut, USA
Forget the kit, go to NAPA. The M/C seat holes are metric and 2 different sizes. NAPA has short lenghts of metric brake conversion lines with the nuts that fit the seat. Cut the other end off and bend up the the lines into the M/C and you have a leak free seal and the best M/C bleeder there is.
Gary
Gary
