Rear brake parts for 760 Turbo

  • Thread starter Thread starter e4fx
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e4fx

Hi:

I need new rear rotors on my 760 Turbo. (1987 model, manufactured Sept
'86).
My friend who's doing the job said the calipers were fine, but
suggested I get seal kits as long as the other work is being done.

Questions:
Rear Rotors
1. After reading the forum I'll likely get ATE rotors or Brembo.
(either $28) Those are fine, correct?

Rear Pads
1. Forum consensus seems to be use Volvo pads or possibly Mintex. At
Groton Volvo pads are $30. Mintex are $17, but they suggest to also
get a Teflon Shim Set ($4) and a Rear Hardware set ($5). I'm sure
both are are good idea. Mintex pads + accessories ok?
2. These items aren't suggested with the Volvo pads, however. Does
the Volvo pad set come with these items? If not, is it more advisable
to buy the Volvo pads and commit to getting the Shim and Hardware sets
as well?

Rear Calipers
1. I assume the rear calipers must be Bendix. Where can I get rear
Brake Caliper Repair (seal) Kit?
2. If I'm having the seals replaced as part of this job, should I just
get a new set of rebuilt rear calipers?
3. I don't know if mine have 38mm or 40mm pistons. I can choose to
replace both with 40mm, correct? Looks like they're $65 (plus core
charge), but they include the pads and hardware. What are the best
brands to get. My only other concern would be the type of pad I'd
get. Is that a problem?
4. Am I missing something I should be considering before I begin?

Thanks a lot!
 
Hi:

I need new rear rotors on my 760 Turbo. (1987 model, manufactured Sept
'86).
My friend who's doing the job said the calipers were fine, but
suggested I get seal kits as long as the other work is being done.
Click to expand...

This would add considerably to the work. Are the calipers seized or
leaking? If neither is the case I would leave well alone.
Questions:
Rear Rotors
1. After reading the forum I'll likely get ATE rotors or Brembo.
(either $28) Those are fine, correct?
Click to expand...

Both are good makes with a generally good worldwide reputation. In
reality, it is probably debatable whether you will truly notice the
difference in use between these or other aftermarket stuff. Warping
and wear may be an issue with cheaper makes, though.
Rear Pads
1. Forum consensus seems to be use Volvo pads or possibly Mintex. At
Groton Volvo pads are $30. Mintex are $17,
Click to expand...

I just whack in whatever the parts store put on the desk. Never had
any trouble, nor been able to tell the diference. This will be
particularly true on the rear brakes, which have comparatively little
work to do.
but they suggest to also
get a Teflon Shim Set ($4) and a Rear Hardware set ($5). I'm sure
both are are good idea. Mintex pads + accessories ok?

2. These items aren't suggested with the Volvo pads, however. Does
the Volvo pad set come with these items? If not, is it more advisable
to buy the Volvo pads and commit to getting the Shim and Hardware sets
as well?
Click to expand...

Unlike other posters here, brake squeal has never been a problem on
any car I've changed the pads on, regardless of make of pad. I use
Copperslip grease on the backs of the pads, which I guess does the
same as newfangled teflon shims. If the locating pins are damaged, you
will need to replace these.
Rear Calipers
1. I assume the rear calipers must be Bendix. Where can I get rear
Brake Caliper Repair (seal) Kit?
Click to expand...

Auto parts store. In the UK I would recommend the warehouses we call
motor factors.
2. If I'm having the seals replaced as part of this job, should I just
get a new set of rebuilt rear calipers?
Click to expand...

Depends 1) what state the present callipers are in, 2) how much your
friend wants (and will charge) to do calliper stripping, and 3) how
deep your pockets are.
3. I don't know if mine have 38mm or 40mm pistons. I can choose to
replace both with 40mm, correct?
Click to expand...

Use the ones recommended by the rebuilder. Unless you have specific
reasons not to, it is usually best to replace like with like. It's not
only the piston size you need to consider, but the size of disk it is
made for, the pad size that will fit, and the location of the mounting
lugs.
Looks like they're $65 (plus core
charge), but they include the pads and hardware. What are the best
brands to get. My only other concern would be the type of pad I'd
get. Is that a problem?
Click to expand...

I know some people find this an important issue. There will be
differences in wear rates, and some people talk about 'feel' and
better stopping performance, but these are the rear pads on a Volvo
760, not the fronts on a track day car. The important thing is that
they are the same across the axle.

Assess the condition of the car. It is 17 years old - this could be
the last rear pad change it is ever going to need. As long as the
brakes are working properly I would reconsider the need to spend more
time and money on this. If they are not working properly, then these
rebuilt calipers sound like a good deal.

--

Stewart Hargrave


For email, replace 'SpamOnlyToHere' with my name
 
Hey Stewart:

Thanks for your very helpful response.

A lot of great information, plus some things I didn't think about.

1. As the rear brakes work fine, I'll just get the rotors and pads.
If I'm not going to rework the real calipers can I assume the various
rear rotors for this 760 are the same size and any of them will work
with the existing calipers?

2. You did make me think I should check the front calipers. Is
there a way to ID whether I have Girling or Bendix? The service
plate seems to be missing and I myself don't want to pull the pad just
to find out. I've read that the info printed there is not always
correct anyway.

Thanks again.
 
Hey Stewart:

Thanks for your very helpful response.

A lot of great information, plus some things I didn't think about.

1. As the rear brakes work fine, I'll just get the rotors and pads.
If I'm not going to rework the real calipers can I assume the various
rear rotors for this 760 are the same size and any of them will work
with the existing calipers?
Click to expand...

Bear in mind that we are in different countries, so there may be
variations between the models available. Here in the UK, my EuroCar
Parts catalogue only lists one part number for rear disks (rotors)
across all 740/760 models, which suggests that they are all the same
size. But check with your parts supplier first.
2. You did make me think I should check the front calipers. Is
there a way to ID whether I have Girling or Bendix? The service
plate seems to be missing and I myself don't want to pull the pad just
to find out. I've read that the info printed there is not always
correct anyway.
Click to expand...

In the absence of the production plate (I hope this is not a stolen or
wrecked car), I don't know of a reliable way to check this without
pulling a pad, or at least having a close look at them within the
calliper. There is a useful identification chart at

http://www.swedishbricks.net/700900FAQ/FAQSummary1.html



--

Stewart Hargrave


For email, replace 'SpamOnlyToHere' with my name
 
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