[s-cars] Big brake upgrade help
Taka Mizutani
t44tqtro at gmail.com
Sun Jan 9 00:11:09 EST 2005
Kevin-
Make sure that you have the piston orientation in the correct way so
that the pads don't wear unevenly. I learned this the hard way because
my mechanic did not install the calipers correctly. On the 996
calipers (which are different, I know), I have to swap the crossover
pipes to the opposite end of the caliper because otherwise, I would
not have been able to maintain the proper bleeder orientation and have
the differentially sized pistons hitting in the correct order (it's
too late for me to remember whether the big or small piston needs to
be at the leading edge of the pad).
I can only wonder if that's what ECS meant.
As for your other questions:
2- I don't have the parts catalog up, but if the part number you
quoted is the same as the OEM replacement, then the answer is yes.
Should be pretty easy to find out.
3- I didn't loctite my bolts- however, the torque is quite high-
somewhere around 90 ft-lbs., IIRC. Please double-check any torque
figures before you go off and drive the car.
4- That would mostly likely mean the bolts holding the Porsche caliper
to the bracket- call ECS to confirm.
5- Passenger rear, driver rear, passenger front, driver front, with
the outer half bled before the inner half on each caliper. Tap gently
with a mallet on the body of the caliper in order to free any bubbles
trapped inside for best results.
6- I use brake pad anti-squeal paste on the outside of the pad, that's
about it. The only other thing you could do is chamfer the leading
edge of the pad. I've never had squealing issues with Porsche
brakes/pads, at least with Textars and Hawk HPS. Hawk HP Plus and
racing pads like Pagid Orange, Porterfield R4 will squeal a lot. DO
NOT use racing pads on the street!
Always, always, always double- and triple-check your work, make sure
you do a low-speed test-drive before determining that everything is
good. Be gentle on the pads when they're new, you need to bed them in.
Also, be VERY careful when replacing the brake lines- the flex line
connection to the hard line can be quite fragile, and it's a major
PITA if you break a hard line. BTDT, very, very, very frustrating-
broke the hard line even with Aerokroil applied, flare nut wrenches,
etc.
Taka
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