Side-to-Side Movement under Hard Braking

[Bgunner]

Normally if it pulls to the right it's the left not working properly. Or vise a versa, if it pulls to the left the right is not working properly.

 

[idahorally]

Yes sorry, it is the rear DRIVER, not holding pressure.

 

[Uncle Gump]

Air won't just jump into the system... unless there is a leak.

Personally I wouldn't waste any more time bleeding... it's time to pull some wheels/drums off and give the brake system a good look.

 

[idahorally]

@Uncle Gump yessir, that’s my next plan of action. Going to order a new set of everything for the rears and then just tear them down and replace what needs replaced.

 

[MikeG]

Yeah, sounds like you could have a wheel cylinder leaking into one of the drums. Brake fluid between the shoes and drum really screws with the coefficient of friction.....

 

[idahorally]

Wellp everything arrived today.. New drums, shoes, hardware/springs, adjuster mechanisms, wheel cylinders.. Ended up only being $100 shipped for the lot. I'm off Monday, so I'll tackle it then.

 

[idahorally]

Well started the swap and haven’t made it far. I can’t these to break free.. impact, breaker bar, nothing.

 

[Uncle Gump]

The plot thickens... another reason I'm not a fan of wheel spacers.

I would take a propane torch and try a bit of heat. Not cherry red hot... jost hot. Probably had some loctite added for good measure.

 

[Roert42]

Well started the swap and haven’t made it far. I can’t these to break free.. impact, breaker bar, nothing.

Sounds like you need more PB Blaster and a bigger impact/longer breaker bar. Can try to use your jack to push up on the breaker bar.

 

[idahorally]

Headed to harbor freight to get a torch and some pb blaster as we speak.

 

[Roert42]

Headed to harbor freight to get a torch and some pb blaster as we speak.

Home Depot Sells it by the gallon. $20 gets you a gallon of PB Blaster and a spray bottle.

 

[idahorally]

PB blaster and the jack bar as an extension got it done.. didn’t have to bust out the torch.

This being my first time redoing drum brakes, I can now say it’s a royal pain in the ass. Anyway got it all done. Wheel cylinders were definitely the issue, and all of the springs/adjusters were toast too.

pedal is firm again, e brake stops on the 3rd click, no more pulling to the right braking and I have a lot more stopping power. ABS light does still come on if I really mash it down though.

Thanks for the help guys.

 

[Uncle Gump]

I would just make sure you re-torque all the wheel fasteners after a hundred miles or so...

 

[idahorally]

Yessir, I’m used to doing that. I’ll hit the spacer lugs again too.

 

[idahorally]

So a little update, I ended up replacing the master cylinder too and that really had an improvement on the braking as well.

Fast forward to this weekend, I was on a pretty rutted south Florida highway and caught one pretty good, immediately lost about 70% braking power. Upon inspection today, I found that one of the brand new "Carlson Pro" drum adjuster assemblies sheared clean in half.