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 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 04-23-2015, 09:42 AM   #1
KyleSeal
Senior Member
 
KyleSeal's Avatar
 
Join Date: Mar 2014
Location: Toano, VA
Posts: 884
Installing new Master Cylinder Advice

So I decided that the old master cylinder was failing so I got a reman. MC.

I was looking for advice on installing the new one. Drum on drum, 1970 2wd.

Problems, things to look for, mistakes you've made to help me not make them, ect.

Any help is appreciated, thanks.
__________________
"Sometimes I do serve as a good bad example. Glad to be of service."

My Build Thread (1967 C10, lowered, EFI, daily truck): http://67-72chevytrucks.com/vboard/s...d.php?t=830809
KyleSeal is offline   Reply With Quote
Old 04-23-2015, 10:15 AM   #2
LockDoc
The Older Generation


 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,665
Re: Installing new Master Cylinder Advice

-
The main thing I can tell you is to be sure and bench bleed it per the instructions in (or on) the box....

LockDoc
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles

(My Dually Pickup Project Thread)

http://67-72chevytrucks.com/vboard/s...d.php?t=829820

-
LockDoc is offline   Reply With Quote
Old 04-23-2015, 10:20 AM   #3
wkclifton4
Registered User
 
Join Date: Mar 2015
Location: henrico virginia
Posts: 7
Re: Installing new Master Cylinder Advice

I replaced mine when I first bought my 68 all you have to do to remove it is to disconnect the two brake lines and the two screws on the fire wall it pulls right just don't brake proportioning valve as it connects to the right sided stud. idk if you have a booster mine does not. you have to bench bleed the master cylinder which means you have to get all of the air out of the master cylinder. you can buy a kit or just push in on the valve un till theres no more bubbles then pretty much just blead the lines at the master cylinder and the wheels and you will be good to
wkclifton4 is offline   Reply With Quote
Old 04-23-2015, 11:39 AM   #4
7tee
Registered User
 
7tee's Avatar
 
Join Date: Mar 2015
Location: Fletcher, N.C.
Posts: 309
Re: Installing new Master Cylinder Advice

Mine came with the bleed kit and like the others said, definitely bench bleed until all bubbles are gone...
7tee is offline   Reply With Quote
Old 04-23-2015, 03:34 PM   #5
GRX
Registered User
 
GRX's Avatar
 
Join Date: Jul 2010
Location: MD
Posts: 1,937
Re: Installing new Master Cylinder Advice

Good brakes are one of my peeves. Bench Bleed for sure. I like to pump the fluid into a glass jar to view bubbles & make sure none get pumped back into the cylinder. You will still need to pump new fluid to all four wheel cylinders after install to ensure there is no air in the system. Start at the furthest one from the master first. Speed bleeders make it a very simple one man operation. Have done several this way. Well worth the $25 expense in my opinion.

>> http://www.jegs.com/p/Russell/Russel...44478/10002/-1


Last edited by GRX; 04-23-2015 at 03:42 PM. Reason: link added
GRX is offline   Reply With Quote
Old 04-23-2015, 07:29 PM   #6
Mike C
Registered User
 
Mike C's Avatar
 
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,724
Re: Installing new Master Cylinder Advice

All great advice. I would also suggest replacing the wheel cylinders at the same time.
__________________
44 Willys MB
52 M38A1
64 Corvette Coupe
68 Camaro 'vert LT1 & TH700
69 Z/28 355 12.6's @110
69 Chevy Short Step 4 1/2"/7" drop
72 Jimmy 4WD 4spd 4" & 35's
02 GMC 2500HD 4x4 Duramax
Mike C is offline   Reply With Quote
Old 04-23-2015, 08:22 PM   #7
hamjet
Registered User
 
hamjet's Avatar
 
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
Re: Installing new Master Cylinder Advice

Quote:
Originally Posted by GRX View Post
Good brakes are one of my peeves. Bench Bleed for sure. I like to pump the fluid into a glass jar to view bubbles & make sure none get pumped back into the cylinder. You will still need to pump new fluid to all four wheel cylinders after install to ensure there is no air in the system. Start at the furthest one from the master first. Speed bleeders make it a very simple one man operation. Have done several this way. Well worth the $25 expense in my opinion.

>> http://www.jegs.com/p/Russell/Russel...44478/10002/-1

Hey, those things are pretty slick!!!
__________________
Thanks, Joe..
1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB.
hamjet is offline   Reply With Quote
Reply

Bookmarks

Tags
bleed, brakes, drum, master cylinder


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 12:26 AM.


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