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Username Post: Can't figure out brake pull. Help!?        (Topic#350003)
Schiavoneluke 
Contributor
Posts: 137

Reg: 05-16-16
03-08-18 11:03 AM - Post#2726887    

Here's another one that I've been struggling with. Brakes pull hard right. Could really use some thoughts on this one

Have played with the adjustment at least a dozen times. Might solve it for a day but cones back

Appeared shortly after a brake job with new pads last year but not until about halfway through a 200 mile road trip almost out of nowhere

After it started pulling I changed:
-wheel cylinders
-flex hoses
-tried rotating drums-no change
-new front end kit including ball joints, tie rod ends, etc
- no visible signs of contamination. Have tried cleaning the pads and drums with rubbing alcohol

Sometimes it feels like it's pulling when I'm driving straight down the road, but all suspension components were replaced. What else is there to look at? Breaks pull, squeak, and jump when braking from high speeds, shaking the whole car



Edited by Schiavoneluke on 03-08-18 11:05 AM. Reason for edit: No reason given.

 




turbo38s10 
"7th Year" Gold Supporting Member
Posts: 1577
turbo38s10
Loc: Agawam,MA
Reg: 09-17-09
03-09-18 06:33 AM - Post#2726973    
    In response to Schiavoneluke

Are you sure your alignment of the front end is correct? These cars used to pull like crazy if the alignment was off.



 
msp177 
Contributor
Posts: 620

Reg: 02-16-10
03-09-18 08:46 AM - Post#2726987    
    In response to Schiavoneluke

I assume you have drums all around? If so...

1. Have you turned the drums?
2. Are the drums within wear tolerance?
3. Did you have the brakes adjusted?
4. Have you had an alignment?

That's about it for what you describe. Hope this helps!
msp177






 
Schiavoneluke 
Contributor
Posts: 137

Reg: 05-16-16
03-09-18 11:06 AM - Post#2727009    
    In response to turbo38s10

Ive had a shop look at the alignment at least 3 or 4 times now . Unless their machine is off it should be good



Edited by Schiavoneluke on 03-09-18 11:06 AM. Reason for edit: No reason given.

 
raycow 
Honored Member
Posts: 27764
raycow
Loc: San Francisco, CA
Reg: 11-26-02
03-09-18 12:01 PM - Post#2727014    
    In response to Schiavoneluke

If you pull the drums, does the contact wear area look similar on all of the shoes?

Ray

Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


 
gkralik3645 
"5th Year" Silver Supporting Member
Posts: 200
gkralik3645
Loc: omaha
Reg: 12-05-13
03-09-18 12:27 PM - Post#2727022    
    In response to Schiavoneluke

On my 2008 Impala, it was doing pretty much the same thing. It turned out the front tires were bad where you couldn't see. Internally they were separating. When you braked, the whole car would shake.

George




 
64ss409 
Senior Member
Posts: 899

Loc: Montana
Reg: 12-04-02
03-09-18 04:23 PM - Post#2727045    
    In response to Schiavoneluke

Are the primary and secondary shoes in their correct positions?

1964 SS 409/340 4 spd, bought new Oct '63 from Ken Boggs Chevrolet, Geraldine, Montana


 
Schiavoneluke 
Contributor
Posts: 137

Reg: 05-16-16
03-09-18 06:10 PM - Post#2727053    
    In response to raycow

Well not exactly. It appeared as though the top and bottom of the pad had slightly more wear on the primary shoe and some of the brake dust seemed to have collected in this area. But I tried sanding it down and cleaning the shoes and it didn't seem to change anything



 
Schiavoneluke 
Contributor
Posts: 137

Reg: 05-16-16
03-09-18 06:10 PM - Post#2727054    
    In response to 64ss409

Yes small shoes are towards the front



 
Schiavoneluke 
Contributor
Posts: 137

Reg: 05-16-16
03-09-18 06:15 PM - Post#2727055    
    In response to gkralik3645

Good thought. I'll try rotating them



 
japete92 
"4th Year" Silver Supporting Member
Posts: 1067
japete92
Loc: No. Virginia
Reg: 01-18-13
03-10-18 07:42 AM - Post#2727100    
    In response to Schiavoneluke

  • Schiavoneluke Said:
Here's another one that I've been struggling with. Brakes pull hard right. Could really use some thoughts on this one

Have played with the adjustment at least a dozen times. Might solve it for a day but cones back

Appeared shortly after a brake job with new pads last year but not until about halfway through a 200 mile road trip almost out of nowhere

After it started pulling I changed:
-wheel cylinders
-flex hoses
-tried rotating drums-no change
-new front end kit including ball joints, tie rod ends, etc
- no visible signs of contamination. Have tried cleaning the pads and drums with rubbing alcohol

Sometimes it feels like it's pulling when I'm driving straight down the road, but all suspension components were replaced. What else is there to look at? Breaks pull, squeak, and jump when braking from high speeds, shaking the whole car




"Have played with the adjustment at least a dozen times. Might solve it for a day but cones back"

Sounds like adjustment is at least part of your problem. If they don't pull immediately after they are adjusted correctly, then perhaps there is something wrong with one of the adjusters (or some other part) that does not allow that brake to stay properly adjusted.

A leaking brake cylinder can cause rather severe grabbing too.

Have you figured out which wheel is the culprit? The one grabbing and causing the 'pull' will lock up first.

If the car is in its 'pulling' mode now. Recommend you get the wheels off the ground and see if the adjustment is still correct.

Hope this is helpful.

Pete



 
Schiavoneluke 
Contributor
Posts: 137

Reg: 05-16-16
03-10-18 02:55 PM - Post#2727137    
    In response to japete92

Turns out it was a bad brake shoe. Rotated the shoes and got the adjustment even and it started pulling to the left. The one primary shoe had seriously more wear when I compared it to the others. Thanks everyone for your help.



 
junky 
Valued Contributor
Posts: 2662

Loc: Northeast CT
Reg: 06-27-10
03-10-18 06:30 PM - Post#2727152    
    In response to Schiavoneluke

Assuming that both sides were replaced at the same time, one shoe being worn more than the others, would indicate a problem with the hydraulics or the return springs. It will be up to you to figure out which one it is. If you replaced both wheel cylinders, is there a possibility that they are not a matched pair.. i.e. diameter of the cylinder? Are the brake hoses a matched pair? Did you replace the brake hardware?

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
Blu 67 
"6th Year" Gold Supporting Member
Posts: 419
Blu 67
Loc: Oshawa, Ontario Canada
Reg: 10-15-05
03-10-18 08:21 PM - Post#2727159    
    In response to junky

Try one of the infra red heat guns to check brake temps. Will point you in right direction.

Can be used for many more application as. How hot is your coffee?

67 Impala 2 Dr Hrdtp, Edelbrock intake,ceramic headers,3 speed TH350 auto.,aluminum radiator,350 Crate motor Daily driver in the summer. Sitting on a 68 station wagon frame Owned for 39 years.
2017 Upgraded to Classic Auto Air Conditioning .


 
56_Kruiser 
Valued Contributor
Posts: 2768
56_Kruiser
Loc: St. Augustine, Fl
Reg: 09-23-05
03-11-18 06:48 AM - Post#2727185    
    In response to Blu 67

JFYI...

I had a pulling problem for years. It manifested differently than yours. It was inconsistent, sometimes left, sometimes right. I went through all the changing of everything like you.

EXCEPT...A-Arms.

I had aftermarket a-arms on the front. Don't remember the brand...I put them on in 1983. The purpose was to allow better alignment. (I don't recall what, seems caster or camber sometimes needed improved control arms).

At any rate, they ultimately spread at the top a bit, and would allow them to shift forward or backward. Depending on whether they were forward or backward, or centered, it would pull left, right, or not at all.

Doesn't take much shift to affect things.

I replaced with Global West expensive...but what a difference in handling. And pull gone.




1956 Chevy
Vid of 61
61 Chevy


 
models916 
Valued Contributor
Posts: 4783

Age: 67
Loc: Addison, IL
Reg: 05-28-10
03-12-18 05:32 AM - Post#2727287    
    In response to 56_Kruiser

Rubber hoses clog from the inside and reduce pressure to that side of the brakes.



 
Tri5man 
Valued Contributor
Posts: 3663
Tri5man
Loc: Possums Crotch, KY
Reg: 06-26-07
03-12-18 06:58 AM - Post#2727297    
    In response to models916

How can reduced pressure cause a brake to pull?



 
junky 
Valued Contributor
Posts: 2662

Loc: Northeast CT
Reg: 06-27-10
03-12-18 07:18 AM - Post#2727301    
    In response to models916

  • models916 Said:
Rubber hoses clog from the inside and reduce pressure to that side of the brakes.



There is more pressure on the opposite side of the car that has more flow, so the braking pressures are not equal. Mismatched brake linings can cause the same problems. Even worn wheel bearings can cause strange problems, that is why I always replaced them in pairs. If one side has worn out, the other side isn't far behind. The only way to totally check for defective parts, is to swap all mechanical brake parts from one side to the other and see if the problem moves to the other side. If it doesn't then the problem is in the hydraulics. I suggest that you have someone else that is experienced, put eyes on it. Possibly they will see what you are not seeing.

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
hallgastrap 
Forum Newbie
Posts: 2

Age: 75
Loc: illinois
Reg: 10-07-13
03-12-18 11:14 AM - Post#2727336    
    In response to Schiavoneluke

try rotating front tires





 
models916 
Valued Contributor
Posts: 4783

Age: 67
Loc: Addison, IL
Reg: 05-28-10
03-13-18 04:54 AM - Post#2727429    
    In response to Tri5man

They don't clog the same left to right and pull the way of the higher pressure/volumn. I went through this with a 66 wagon I had that pulled.



 
Schiavoneluke 
Contributor
Posts: 137

Reg: 05-16-16
03-15-18 08:48 PM - Post#2727782    
    In response to 56_Kruiser

D idnt change the a arms but they are original and appeared fine when we were doing springs and bushings. Not sure how you would determine if they were a problem



 
Schiavoneluke 
Contributor
Posts: 137

Reg: 05-16-16
03-15-18 08:50 PM - Post#2727784    
    In response to junky

Brake hoses have both been replaced a second time, wheel cylinders were checked and the diameters were all the same. Did find it unusual that one wore more but I thought maybe the material was just defective



 




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