Drum Brake Auto Adjuster Issue - Team Camaro Tech
Non-Camaro Tech Problems and Issues with your daily driver or other non-Camaro vehicles.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 22 (permalink) Old Dec 30th, 19, 09:32 AM Thread Starter
Tech Team
George
 
Join Date: Feb 2013
Location: Tennessee
Posts: 50
Question Drum Brake Auto Adjuster Issue

Have a GM 10 bolt posi unit under my old '59 Apache P/U not sure what year GM vehicle its out of. It has the (2) piece adjustment lever. Had leaking wheel cylinders and saturated shoes. Rebuild was in order. Upon putting the finishing touches on adjustments I noticed the adjuster lever has play in it and is not making positive contact with the star wheel...see pic. The star wheel is worn and it will be replaced.

Would like to know what years GM ran with this kind of set-up. It appears it was superseded at some point by a (1) piece lever with an additional helper spring to keep upward tension on the star wheel. This (2) piece arm is sloppy at best. The fixed link in the pic is non-adjustable and the lower spring wants to lift the arm away from the wheel.

Whats the fix here.... what am i missing??????


See attached pics for more clarity....

Last edited by 69 Pro Street; Jan 7th, 20 at 01:59 PM.
69 Pro Street is offline  
Sponsored Links
Advertisement
 
post #2 of 22 (permalink) Old Dec 30th, 19, 12:57 PM Thread Starter
Tech Team
George
 
Join Date: Feb 2013
Location: Tennessee
Posts: 50
Re: Drum Brake Auto Adjuster Issue

I hope I'm not offending anyone on this site for asking for help on a non-Camaro vehicle. Its a GM rear end and it might very well be out of an early Camaro...of what vintage I'm not sure. I'm sure someone has run into this problem before and has an answer to my question.

Last edited by 69 Pro Street; Dec 30th, 19 at 01:10 PM.
69 Pro Street is offline  
post #3 of 22 (permalink) Old Dec 30th, 19, 01:42 PM
Senior Tech
Al
 
Join Date: Jun 2007
Location: Iowa
Posts: 3,539
Re: Drum Brake Auto Adjuster Issue

The only 2 piece adjuster I can recall would be 80's C10 pickup.

Al

my 67' build thread:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
allanjs is offline  
 
post #4 of 22 (permalink) Old Dec 30th, 19, 01:44 PM
Gold Lifetime Member
Vince
 
Join Date: May 2005
Location: Bay Area
Posts: 2,550
Garage
Re: Drum Brake Auto Adjuster Issue

It seems to me it is not assembled correctly. That set up was used forever basically. Go online and get a blown up view and disassemble one side and compare. If you need parts I have plenty N/C or NAPA carries it all as well.

1967 327 4spd convertible 119K
1968 RS Z/28 04D Norwood have owned twice
1968 RS Z/28 04D Van Nuys asleep for 36 years
1969 Z/28 X33
3forme is offline  
post #5 of 22 (permalink) Old Dec 30th, 19, 01:48 PM
Gold Lifetime Member
Vince
 
Join Date: May 2005
Location: Bay Area
Posts: 2,550
Garage
Re: Drum Brake Auto Adjuster Issue

I did not catch the 2 pc lever comment. Somebody improvise???

1967 327 4spd convertible 119K
1968 RS Z/28 04D Norwood have owned twice
1968 RS Z/28 04D Van Nuys asleep for 36 years
1969 Z/28 X33
3forme is offline  
post #6 of 22 (permalink) Old Dec 30th, 19, 01:48 PM Thread Starter
Tech Team
George
 
Join Date: Feb 2013
Location: Tennessee
Posts: 50
Re: Drum Brake Auto Adjuster Issue

Interesting. OK, Now that we have an era of where this rear end came out of most importantly I need some technical direction now relating to my dilemma.
69 Pro Street is offline  
post #7 of 22 (permalink) Old Dec 30th, 19, 01:51 PM Thread Starter
Tech Team
George
 
Join Date: Feb 2013
Location: Tennessee
Posts: 50
Re: Drum Brake Auto Adjuster Issue

Quote:
Originally Posted by 3forme View Post
It seems to me it is not assembled correctly. That set up was used forever basically. Go online and get a blown up view and disassemble one side and compare. If you need parts I have plenty N/C or NAPA carries it all as well.
What appears to be wrong? What jumps off the page at you. I can't seem to find anything closely related on the web that would give me a real good prospective of what it should look like.
69 Pro Street is offline  
post #8 of 22 (permalink) Old Dec 30th, 19, 01:55 PM Thread Starter
Tech Team
George
 
Join Date: Feb 2013
Location: Tennessee
Posts: 50
Re: Drum Brake Auto Adjuster Issue

Quote:
Originally Posted by 3forme View Post
I did not catch the 2 pc lever comment. Somebody improvise???
The auto adjuster arm is virtually in (2) separate pieces...you have to interlock them. Whereas most other GM arrangements have a (1) piece arm. Must have been an improvement over the (2) piece.
69 Pro Street is offline  
post #9 of 22 (permalink) Old Dec 30th, 19, 02:27 PM Thread Starter
Tech Team
George
 
Join Date: Feb 2013
Location: Tennessee
Posts: 50
Re: Drum Brake Auto Adjuster Issue

Quote:
Originally Posted by allanjs View Post
The only 2 piece adjuster I can recall would be 80's C10 pickup.
I can't find anything on the web the shows a (2) piece adjuster in 80's range for C10 P/U's. If it wouldn't be to much bother could you provide a link or something that corroborate's your recollection ...would appreciate it very very much.
69 Pro Street is offline  
post #10 of 22 (permalink) Old Dec 30th, 19, 02:49 PM Thread Starter
Tech Team
George
 
Join Date: Feb 2013
Location: Tennessee
Posts: 50
Re: Drum Brake Auto Adjuster Issue

BTW, these are 9-1/2" drums if that tells you anything worth noting.
69 Pro Street is offline  
post #11 of 22 (permalink) Old Dec 30th, 19, 02:55 PM
Gold Lifetime Member
Vince
 
Join Date: May 2005
Location: Bay Area
Posts: 2,550
Garage
Re: Drum Brake Auto Adjuster Issue

the spring right above blue arrow in first pic for one. It does not look like its sitting right or perhaps location?. My year range was totally incorrect with a 2 pc adjuster arm.
If the ebrake cable comes in at the right spot could you convert the whole assembly for the one pc.?

1967 327 4spd convertible 119K
1968 RS Z/28 04D Norwood have owned twice
1968 RS Z/28 04D Van Nuys asleep for 36 years
1969 Z/28 X33
3forme is offline  
post #12 of 22 (permalink) Old Dec 30th, 19, 03:01 PM
Gold Lifetime Member
Vince
 
Join Date: May 2005
Location: Bay Area
Posts: 2,550
Garage
Re: Drum Brake Auto Adjuster Issue

Click image for larger version

Name:	s-15 brakes.jpg
Views:	41
Size:	10.5 KB
ID:	231617 is this it?

1967 327 4spd convertible 119K
1968 RS Z/28 04D Norwood have owned twice
1968 RS Z/28 04D Van Nuys asleep for 36 years
1969 Z/28 X33
3forme is offline  
post #13 of 22 (permalink) Old Dec 30th, 19, 03:13 PM Thread Starter
Tech Team
George
 
Join Date: Feb 2013
Location: Tennessee
Posts: 50
Re: Drum Brake Auto Adjuster Issue

Quote:
Originally Posted by 3forme View Post
Attachment 231617 is this it?
I can't make out any detail in the diagram....to small. Anyway that can be sent to my email address w/o any sizing restrictions here?

Not using e-brake and have no plans to make functional anytime in the near future. Be nice to know if a (1) piece adjuster could be incorporated...????
69 Pro Street is offline  
post #14 of 22 (permalink) Old Dec 30th, 19, 03:51 PM
Senior Tech
Al
 
Join Date: Jun 2007
Location: Iowa
Posts: 3,539
Re: Drum Brake Auto Adjuster Issue

Quote:
Originally Posted by 69 Pro Street View Post
I can't find anything on the web the shows a (2) piece adjuster in 80's range for C10 P/U's. If it wouldn't be to much bother could you provide a link or something that corroborate's your recollection ...would appreciate it very very much.
I meant to type S10 not C10. Search 82-93 S10 rear brakes. They are 9-1/2" also.
Edit: Might be later models also. It's been a long time since I was into one.

Al

my 67' build thread:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
allanjs is offline  
post #15 of 22 (permalink) Old Dec 30th, 19, 04:26 PM Thread Starter
Tech Team
George
 
Join Date: Feb 2013
Location: Tennessee
Posts: 50
Re: Drum Brake Auto Adjuster Issue

Alright will look @ Rock Auto in that time period. Even if I find parts there is still something off....:>(
69 Pro Street is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome