The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1960 - 1966 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-07-2014, 10:00 AM   #1
curvedglass
Registered User
 
curvedglass's Avatar
 
Join Date: Apr 2014
Location: Pennsylvania
Posts: 186
CPP Master Cylinder Leaking Issue

Anybody have any issues with their CPP disc brake master cylinder leaking? I have put roughly 3k on my new front power disc system without issue. Praising it several times as I live in deer country and had to panic stop at least a half dozen times. Last night I got under the hood to check my oil and water when I noticed a mess on my inner fender. Looks like a pressure leak. It just isn't dripping - it is squirting. Appears to me coming from the front of the proportioning valve under the rubber cap at the front and/or the lower front output fitting at the bottom of the brass block. I tried to tighten the fitting and it didn't budge. I topped off the MC and drove to work today only to find fresh fluid all over the place again. What is that fitting on the front under the rubber cap? Is that some sort of pressure switch? Has anyone ever had the brass block crack? trying to figure this one out.
curvedglass is offline   Reply With Quote
Old 11-07-2014, 12:11 PM   #2
curvedglass
Registered User
 
curvedglass's Avatar
 
Join Date: Apr 2014
Location: Pennsylvania
Posts: 186
Re: CPP Master Cylinder Leaking Issue

solving my own issues - Called CPP and Jeff told me it is the metering valve that is behind rubber cap #1. They actually stock them due to others having this issue as well and you do not have to send back your prop valve etc. Got me an extra one just in case.
curvedglass is offline   Reply With Quote
Old 11-07-2014, 12:17 PM   #3
slepysal
Registered User
 
slepysal's Avatar
 
Join Date: Oct 2006
Location: San Jose NOR*CAL
Posts: 3,080
Re: CPP Master Cylinder Leaking Issue

thanks for the info glad CPP took care of you
__________________
1960 Apache long bed fleet L6 250 Clifford intake 2 bbl carb. Langdon cast headers with dual exhaust and bellflower tips. T-5 5 speed, power steering and power disc brakes.

"Over, Around or through it... "
slepysal is offline   Reply With Quote
Old 11-07-2014, 04:50 PM   #4
doobiebro
Registered User
 
doobiebro's Avatar
 
Join Date: Nov 2011
Location: Chaparral NM
Posts: 693
Re: CPP Master Cylinder Leaking Issue

Same thing happen to my set up.. I called CPP and Jeff sent me a metering valve and I didnt have to send mine back..
__________________
CURRENT & PAST CHEVY TRUCKS
60 C-10 Apache short step side
62 C-10 short step side
66 GMC Long bed fleet side 305 V-6
77 C-20 Custom Deluxe (Blue Goose)
doobiebro is offline   Reply With Quote
Old 11-16-2014, 10:37 PM   #5
racecougar
Registered User
 
racecougar's Avatar
 
Join Date: Jan 2013
Location: Imperial, MO
Posts: 1,003
Re: CPP Master Cylinder Leaking Issue

There was actually an article/blurb about this in either Hot Rod or Car Craft a couple months ago. It seems that this is a common occurrence with these kits.
__________________
Rod @ AzzKicker Cars
1965 C10 SWB - Build Thread
racecougar is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:18 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com