Unknown MasterCylinder on my vette
Thread Starter
Intermediate
Joined: Jan 2014
Posts: 34
Likes: 0
From: AIKEN SC
Unknown MasterCylinder on my vette
Hello,
I have a 1977 vette, but with very few stock parts...
I need to change my Mastercylinder which is leaking in the Mastervac.
I checked the outputs and I have 2 identical 9/16" outputs, which is unusual for a 1977 vette that has normaly a 1/2" and a 9/16" output.
Do you know what type of MasterCylinder I have ?? camaro ? anything else ?
Thanks !
I have a 1977 vette, but with very few stock parts...
I need to change my Mastercylinder which is leaking in the Mastervac.
I checked the outputs and I have 2 identical 9/16" outputs, which is unusual for a 1977 vette that has normaly a 1/2" and a 9/16" output.
Do you know what type of MasterCylinder I have ?? camaro ? anything else ?
Thanks !
Drifting
Joined: Jun 2012
Posts: 1,990
Likes: 183
From: Port St. Lucie Fl
Hello,
I have a 1977 vette, but with very few stock parts...
I need to change my Mastercylinder which is leaking in the Mastervac.
I checked the outputs and I have 2 identical 9/16" outputs, which is unusual for a 1977 vette that has normaly a 1/2" and a 9/16" output.
Do you know what type of MasterCylinder I have ?? camaro ? anything else ?
Thanks !
I have a 1977 vette, but with very few stock parts...
I need to change my Mastercylinder which is leaking in the Mastervac.
I checked the outputs and I have 2 identical 9/16" outputs, which is unusual for a 1977 vette that has normaly a 1/2" and a 9/16" output.
Do you know what type of MasterCylinder I have ?? camaro ? anything else ?
Thanks !
Drifting
Joined: Jun 2012
Posts: 1,990
Likes: 183
From: Port St. Lucie Fl
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
I bet that over the course of several years somebody changed one of the brake lines to the MC or changed the fitting itself. I have a '77 and yes, you should have two different size ports / fittings.
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Advanced
Joined: Aug 2017
Posts: 92
Likes: 13
I’ve got the same deal on my 73. At some point it was swapped. There should a stamped/embossed code on it. Google that number and you’ll find the correct one. Mine ending up being from a mid 70’s 3/4 ton truck if I remember. It also used a different length rod to press on the piston. So, find that code 
Thread Starter
Intermediate
Joined: Jan 2014
Posts: 34
Likes: 0
From: AIKEN SC
OK Guys, thank you for your help ! I found the solution :-)
I was mistaken by the fitting itself :
I checked with a slide gauge : both fittings go with 9/16" wrench, but one is 1/2" thread and the other a 9/16" thread.
Sorry for the disturb :-(
I was mistaken by the fitting itself :
I checked with a slide gauge : both fittings go with 9/16" wrench, but one is 1/2" thread and the other a 9/16" thread.
Sorry for the disturb :-(