Jump to content

Replaced Rear Drivers Side Caliper, but that side is smoking excessive.


89-W-Body-Regal

Recommended Posts

89-W-Body-Regal

Hi, I replaced my drivers side rear caliper because the banjo bolt was rusty and the fittings were leaking. I thought I would replace the entire caliper because it’s still in warranty since I replaced both rear calipers last year because they were seize. I also replaced all rotors and pads along with parking brake cables last year. 
 

My concern: I cleaned the drivers side rear rotor, used a fine grit sandpaper to sand off the rust and cleaned the dirt off the pads. Installed the new caliper and bleed the rear left side. I put grease on the caliper piston boot and on the backing plate of the pads. After installed and cleaned all the brake parts, I bleed the one side and I test drove the vehicle. The brakes stop fine and doesn’t pull to one side. But I was smelling smoke coming from that one side. When I came back I noticed the area where I put the grease on the front of the pads were smoking excessively. It took a couple of mins for the smoke to fade. I know pads and rotors smoke when they are new to break the metal in. But the brakes still look fairly new because they don’t have alot of miles on them. Could it be it’s smoking excessive out of that wheel because I put grease on back of the pads? I recall other mechanics telling that it’s normal, just take it to a car wash and the grease will burn off every time you drive it. I just don’t want anything to catch flames. So I ask for advice. If I have to remove the brakes and clean the grease off the pads I will. Anything to have them stop smoking excessive.

Link to post
Share on other sites
Cutlass350

What type of "Grease".
How much??   

Also, I can Never Ever Ever stress enough that no one should even touch their car without a Dealer's service manual (and consulting it when doing anything new to them).
:)  :)
I just went through this with a friend. 
 

On to the Tech:  :)
Fwiw, I only use Permatex Brake Lubricant, and I use  a very very light coating of high temperature grease on the caliper boots.
Note that using the incorrect grease(or too much) can result in the grease running, getting on pads/disk, and resulting in the loss of braking.


https://www.youtube.com/watch?v=bLaQGWtd1O4
How To: Apply Brake Lube | PowerStop
PowerStop - Official Channel


Btw, GM has their own brake lubricant.  Of course, that would work great on your car.
For me, I use a lot of Permatex stuff.  Again, that's my choice for my car.

Still, imho, the GM Service Manual is always the best advice.  Your car has lasted how long?  :)
And, it was built and put together by the specs/parts/stuff in the GM Service Manual.  So, I think that the people that wrote and specified the info on those books had some idea of what they were talking about.  :)

 


Good Luck!
 

 

 

 

Link to post
Share on other sites
89-W-Body-Regal
Posted (edited)
4 hours ago, Cutlass350 said:

What type of "Grease".
How much??   

Also, I can Never Ever Ever stress enough that no one should even touch their car without a Dealer's service manual (and consulting it when doing anything new to them).
:) :)
I just went through this with a friend. 
 

On to the Tech:  :)
Fwiw, I only use Permatex Brake Lubricant, and I use  a very very light coating of high temperature grease on the caliper boots.
Note that using the incorrect grease(or too much) can result in the grease running, getting on pads/disk, and resulting in the loss of braking.


https://www.youtube.com/watch?v=bLaQGWtd1O4
How To: Apply Brake Lube | PowerStop
PowerStop - Official Channel


Btw, GM has their own brake lubricant.  Of course, that would work great on your car.
For me, I use a lot of Permatex stuff.  Again, that's my choice for my car.

Still, imho, the GM Service Manual is always the best advice.  Your car has lasted how long?  :)
And, it was built and put together by the specs/parts/stuff in the GM Service Manual.  So, I think that the people that wrote and specified the info on those books had some idea of what they were talking about.  :)

 


Good Luck!
 

 

 

 

I used super tech grease from Walmart but I think I applied too much on the backing plate of the brake pads and that’s why it’s smoking so much. https://www.walmart.com/ip/Super-Tech-Multi-Duty-Complex-Hi-Temp-Grease-14-oz-Tub/16795246 but it’s for hi temps. Do you think maybe cleaning and applying a better grease will not make it smoke so much?

Edited by 89-W-Body-Regal
Link to post
Share on other sites
vipmiller803

That grease will eat any rubber in short order. Never use common grease on brakes. You'll need to disassemble and clean it all off. Caliper grease only, like this one here.

The only places that need grease in brakes are under the hardware (yes, you read that right, between the hardware and the caliper bracket), in the slide pin boots, and on the backs of the pads to reduce noise. The caliper piston boot does not need grease. The backing plate can use grease where it contacts shoes, but I think you are misusing the words "backing plate", so you do not need to worry about that. It sounds like you did not touch the pin boots, so get yourself some brake clean, take any grease left off, and put a light coat of caliper grease in the above mentioned places.

 

Again, be careful with the nomenclature as it can be confusing on a forum.

This is a backing plate:

Amazon.com: GM Genuine Parts 15650129 Rear Brake Backing Welding Plate:  Automotive

 

These are the brake pads, and the top two images here are just the back of the brake pads, not backing plates:

Go-Parts OE Replacement for 1994-1996 Buick Regal Rear Disc Brake Pad Set  for Buick Regal - Walmart.com - Walmart.com

Edited by vipmiller803
  • Like 1
Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...