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 06-15-2002, 10:55 AM   #1
RodC
Registered User
 
RodC's Avatar
 
Join Date: Nov 2001
Location: Fairmont WV
Posts: 304
Disc Brake Noise (Click Click Click)

I have a click click ... noise coming from my left front rotor. The rotor does not seem off round, no shimmy when I stop. Should I start by replacing the Pins/Caliper or the Rotor? Im thinking pins/caliper because I get a good loud click sometimes when I brake hard.
__________________
Rod Childers
'71 C10 Stepside
RodC is offline   Reply With Quote
Old 06-15-2002, 11:17 AM   #2
Zkast
Account Suspended
 
Zkast's Avatar
 
Join Date: May 2002
Location: Olathe, Kansas
Posts: 929
If you getting a rythmic clicking related to speed, chances are your rotor has too much runout, which will not affect the pedal or pulsing, and is causing the caliper to walk back and forth. Since its making noise its possible you have a rubber insulator thats worn through or simply a loose pad. Check the anti-rattle clips on the inboard pad and double check the retaining tabs on the outboard pad.

If you just go in and replace the rubber insulators (where the caliper bolt slides through) and you still have too much runout, it will just wear them out again. I'd have to check my Alldata but I believe .008 to .010 is "allowable"

Just a few idea's....
Zkast is offline   Reply With Quote
Old 06-15-2002, 11:40 AM   #3
RodC
Registered User
 
RodC's Avatar
 
Join Date: Nov 2001
Location: Fairmont WV
Posts: 304
That is sorta what I was looking for, however there is nothing rubber or plastic in there. I guess in '71 everything was metal. There is a retaining clip for the inner pad to hold it into the piston. The outter pad just seems to lay in there but it is a good tight fit.
__________________
Rod Childers
'71 C10 Stepside

Last edited by RodC; 06-15-2002 at 12:08 PM.
RodC is offline   Reply With Quote
Old 06-15-2002, 02:19 PM   #4
RodC
Registered User
 
RodC's Avatar
 
Join Date: Nov 2001
Location: Fairmont WV
Posts: 304
I may try the rubber insulator first, I just checked out the Chassis manual and it shows 4 on each rotor (2 under the bushing) Mine does not have any, I guess the last owner did not think it needed them
__________________
Rod Childers
'71 C10 Stepside
RodC is offline   Reply With Quote
Old 06-15-2002, 02:25 PM   #5
Zkast
Account Suspended
 
Zkast's Avatar
 
Join Date: May 2002
Location: Olathe, Kansas
Posts: 929
lol yep that would explain it.. there are a total of 4 yes. When you pull the caliper pin AND sleeve out there will be one under the sleeve and one out towards the end of the pin. 2 per pin...
Zkast is offline   Reply With Quote
Old 06-15-2002, 02:59 PM   #6
Mike C
Registered User
 
Mike C's Avatar
 
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,723
Before you try that other stuff, make sure the wheel is tight. A loose wheel wil click like that as it turns.
__________________
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 06-15-2002, 03:29 PM   #7
RodC
Registered User
 
RodC's Avatar
 
Join Date: Nov 2001
Location: Fairmont WV
Posts: 304
Its tight, just had them off to put some brake quiet on. Once I got the squeek out I noticed the click click more! It clicks when going streight too.
__________________
Rod Childers
'71 C10 Stepside
RodC is offline   Reply With Quote
Old 06-16-2002, 10:35 AM   #8
LILREDGMC
Registered User
 
Join Date: Oct 2001
Location: Pittsburgh, Pennsylvania USA
Posts: 461
Discs

You may want to check and see that the outboard pads are seated. When installing new pads, it is usually recommended to have an assistant hold the brakes on, while you take a punch to the tabs on the outboard pad, and bend them over the caliper a bit. It gives them a tighter fit. The trick is the assistant. You can also use a 3/8 extension. Don't do a major hammer, but bring the tabs down on the caliper. I always wire wheel the pins, coat the threads with never seize, and use a silicon grease on the rubber bushings and o rings. Hope this helps.
LILREDGMC is offline   Reply With Quote
Old 06-16-2002, 11:55 AM   #9
RodC
Registered User
 
RodC's Avatar
 
Join Date: Nov 2001
Location: Fairmont WV
Posts: 304
I replaced all the rubber and the bushings, and squeezed the tabs down on the outer pads (I used a large pair of channel locks, but I see how a punch and an assistant would help.) I also bent the tabs in to keep the pad from slidding back and forth. Did all this and lubed with caliper grease and it sounds like new now. Amazin how things work when you use all the parts
__________________
Rod Childers
'71 C10 Stepside
RodC 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 04:05 PM.


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