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 12-04-2020, 08:34 AM   #1
697498chevy
Registered User
 
Join Date: Jan 2009
Location: South Carolina
Posts: 261
1969 C 10 drum brakes

Replaced the rear wheel cylinders as one was leaking . Figured I might as well replace the shoes . Couldn't get the new drum over the new shoes . Old drum that's been turned probably twice just barely fit . I can't figure out what's going on . Shoes and drum look the right size to me . Any ideas ? THANKS !!
697498chevy is offline   Reply With Quote
Old 12-04-2020, 09:00 AM   #2
A1971Blazer
Senior Member
 
A1971Blazer's Avatar
 
Join Date: Nov 2013
Location: East Tennessee
Posts: 2,107
Re: 1969 C 10 drum brakes

Not being sure how much you know about brakes....don't want to insult you.
Make sure you have a long shoe and short shoe on each side....short goes in front
Make sure shoes are seated properly in the backing plate?
Make sure the self adjuster is screwed all the way in?
Make sure wheel cylinder rods are fully retracted into the cylinder?
That about all I can think of...perhaps a picture?
__________________
1967 C10 Step side
1968 C10 Step side
1970 Chevrolet K/5 Blazer
1972 Chevrolet K/5 Blazer
.............
A1971Blazer is offline   Reply With Quote
Old 12-04-2020, 10:30 AM   #3
697498chevy
Registered User
 
Join Date: Jan 2009
Location: South Carolina
Posts: 261
Re: 1969 C 10 drum brakes

No offense taken . I'm no expert but have done these brakes before . Now I'm wondering if the wheel cylinder wouldn't retract because it wasn't yet bled ? THANKS !
697498chevy is offline   Reply With Quote
Old 12-04-2020, 12:46 PM   #4
REDROCKER652002
Registered User
 
Join Date: Nov 2018
Location: South San Francisco CA,
Posts: 434
Re: 1969 C 10 drum brakes

I can only think of the things that were already posted. The self adjuster has to be all the way in and when I was doing drum brakes on my old Ford Sedan, I had to mess with the shoes to get them to seat against the backing plate. I would get them all set up, springs in place and all, then wiggle the whole assembly until it would just kinda fall into place, if that makes sense. Other than that and the adjuster, I don't see where you would have any problems. They are a tight fit, so it can be a pain. RR
REDROCKER652002 is offline   Reply With Quote
Old 12-04-2020, 12:53 PM   #5
A1971Blazer
Senior Member
 
A1971Blazer's Avatar
 
Join Date: Nov 2013
Location: East Tennessee
Posts: 2,107
Re: 1969 C 10 drum brakes

Quote:
Originally Posted by 697498chevy View Post
No offense taken . I'm no expert but have done these brakes before . Now I'm wondering if the wheel cylinder wouldn't retract because it wasn't yet bled ? THANKS !
the spring pressure should push the rods back in...if not crack the bleeder open very slightly to relieve the pressure....not enough to let air in
If your hose(s) are old, they could be partially collapsed inside thereby not allowing the fluid to go back out of the cylinder.
Good luck with it!
__________________
1967 C10 Step side
1968 C10 Step side
1970 Chevrolet K/5 Blazer
1972 Chevrolet K/5 Blazer
.............
A1971Blazer is offline   Reply With Quote
Old 12-04-2020, 02:45 PM   #6
Steeveedee
Who Changed This?
 
Steeveedee's Avatar
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,081
Re: 1969 C 10 drum brakes

I couldn't tell you the number of brake jobs I have done in my life, but one thing I learned on this board is that there is also an 11-1/16" brake setup. Maybe you have those shoes instead of the 11 inch ones?
__________________
~Steven

'70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper

Simi Valley, CA
Steeveedee is offline   Reply With Quote
Old 12-04-2020, 04:39 PM   #7
697498chevy
Registered User
 
Join Date: Jan 2009
Location: South Carolina
Posts: 261
Re: 1969 C 10 drum brakes

Just did the other side and it's the same way . New drum or the newish drum won't fit over the shoes . Plan to have my newish drum turned and see what happens . Did notice that the pads on my new brake shoes are a little longer than than old pads . Maybe that's the problem ? Thanks !
697498chevy is offline   Reply With Quote
Old 12-04-2020, 05:34 PM   #8
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 13,509
Re: 1969 C 10 drum brakes

Post a pic!
Many eyeballs save work!
geezer#99 is offline   Reply With Quote
Old 12-05-2020, 02:48 PM   #9
697498chevy
Registered User
 
Join Date: Jan 2009
Location: South Carolina
Posts: 261
Re: 1969 C 10 drum brakes

Happy to say that I had my drum turned and after a struggle finally have it on over the new brake shoes . Still don't know what the problem was . Didn't have any issues 17 years ago when I last did these brakes . Thanks !!
697498chevy is offline   Reply With Quote
Old 12-16-2020, 01:27 PM   #10
697498chevy
Registered User
 
Join Date: Jan 2009
Location: South Carolina
Posts: 261
Re: 1969 C 10 drum brakes

After a couple laps around the block my left side wheel center was hot . This is the one I put the turned drum on . I had it adjusted in all the way . Took my old worn drum and had it turned . Put it on and the wheel is cool now . When I bled this wheel cylinder my wife couldn't push the brake hard enough to get a good brake fluid flow . I had to stomp it myself before it bled well . Ordered a new rear rubber brake hose . Think A1971BLAZER might be right about my hose . THANKS !
697498chevy is offline   Reply With Quote
Old 12-16-2020, 01:34 PM   #11
Wrenchbender Ret
Registered User
 
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,190
Re: 1969 C 10 drum brakes

Make sure the emer. brake cables are backed off enough to keep from pulling the shoes away from the anchors. Also make sure the cables are not stuck.
Wrenchbender Ret is offline   Reply With Quote
Old 12-16-2020, 02:57 PM   #12
697498chevy
Registered User
 
Join Date: Jan 2009
Location: South Carolina
Posts: 261
Re: 1969 C 10 drum brakes

Thanks Wrenchbender , I'll check it , but the E brake works ok .
697498chevy is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 04:01 PM.


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