Login Register

Rear Brakes/Rotors Replacement

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Post Reply
zepsongs
Posts: 9
Joined: 12 November 2006
Year and Model:
Location:

Rear Brakes/Rotors Replacement

Post by zepsongs »

Sorry if this topic has been covered before, but it seems that every where I look the instructions vary a bit. Basically I need to do my rear brake pads and rotors. I already have the new pads & rotors but upon doing another quick search to make sure I have all my bases covered, one poster suggested that you would need the hardware kit as well (http://www.fcpgroton.com/images/084-0923.jpg). Today is the only day I have free to do this until next weekend, it's calling for rain all week and I do need the car to drive to work.

Also, some posters have mentioned about collapsing the calipers, how do I do this and is it a requirement or is it just to ensure ample room to install the new pads? One final question, no where do I see any instructions on how to put the new rotors on. Is there anything I need to do with the e-brake or should they just slide back on with a little leverage? Do I need to clean, adjust or lube anything to do this? TIA!!

Ozark Lee
MVS Moderator
Posts: 14798
Joined: 7 September 2006
Year and Model: Many Volvos
Location: USA Midwest
Has thanked: 4 times
Been thanked: 75 times

Post by Ozark Lee »

If you have the hardware kit, by all means use it. If you don't just make sure you apply a very light coat of grease to the pins.
Unless something is broken you should be fine re-using the old parts.

As far as collapsing the calipers yes, it is essential or you will never get then new pads back in place around the rotors. I purchased a caliper tool years ago at Advance Auto Parts that makes the job quite easy but before I had the tool I simply used a large screwdriver to pry the pad back against the rotor. Be sure to leave the old pads on to compress the piston on the caliper as it will do some damage to the pad surface no matter what method you use. Also go slowly, with a steady pressure. The piston does not compress quickly.

As far as the emergency brake goes, it depends on how worn or rusted they are. The rotor may come right off or you may need to release the tension on the shoes to release the rotor. Check the repair database for a writeup I did on changing the emergency brake shoes for the details on how to adjust them. I think I described how to tighten them, you need to go the opposite way to loosen them.

The last thing is that, even with the emergency brake shoes loosened, the rotor often rusts to the hub and it is very difficult to remove. A few whacks with a 5 lb. sledge hammer will free it up.

Happy repairs,

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

zepsongs
Posts: 9
Joined: 12 November 2006
Year and Model:
Location:

Post by zepsongs »

Thank you very much!! I found your e-brake writeup and it answers my questions perfectly. I was wondering though if you could send me a pic or show me a link for the caliper tool you use? I've done a search for "caliper tool" and there are so many results that I would prefer to buy the tool that is known to work. Thanks once again!!

zepsongs
Posts: 9
Joined: 12 November 2006
Year and Model:
Location:

Post by zepsongs »

Do you know if this would work on Volvo?

http://www.autozone.com/R,NONAPP1232/st ... Detail.htm

JFO
Posts: 113
Joined: 27 March 2007
Year and Model: '98 S70 GLT
Location: North of Whistler BC, Canada

Post by JFO »

I use a large C clamp which works very well and is easy to find a t any hardware store. Take off the old pads, put the clamp over the the back of the caliper and the piston, slowly tighten the clamp. I think the clamp has about 6" opening.

Jim
'98 S70 Turbo GLT

280,000 km

chuckcintron
Posts: 478
Joined: 11 May 2007
Year and Model:
Location: Upstate New York
Been thanked: 1 time

Post by chuckcintron »

Just FYI...I use a pair of 18" channel-lock pliers to compress either the front or rear pistons:

http://www.curbly.com/uploads/photos/00 ... _large.jpg

Besides being handy for this job, these pliers are just darn handy to have around.

Except on my son's Honda Prelude where the rear calipers need to be SCREWED down to retract. I almost blew the tendons in my hand trying to muscle it back in before I realized what the large slot cut into the face of the (solid) piston was for...duh...

-Chuck
1997 855GLT

zepsongs
Posts: 9
Joined: 12 November 2006
Year and Model:
Location:

Post by zepsongs »

Thanks for all your help!!! They were calling for rain so I decided to get to work before it hit. I actually ended up using the largest flathead screwdriver I have and it worked perfectly!! The old rotors were a pain to get off, but a little liquid wrench and a large rubber mallet did the trick.

Next weekend, the front brakes!!!

Post Reply
  • Similar Topics
    Replies
    Views
    Last post