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Porsche 911 TURBO - 1989 Workshop Manual page 66

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DISASSEMBLING
AND ASSEMBLING
BRAKE
CALIPERS
Disassembling
1. Place brake caliper section on a wooden
board with the piston facing down and
press out piston with compressed air.
4. Lift out seals with a plastic rod.
2. Clamp brake caliper section in a vise with
the cylinder
bores facing up.
Use a vise with soft jaws.
Note:
Make sure surface of brake caliper section
is not damaged and consequently the
corrosion inhibiting coat is not injured.
Cleaning
and
nspecting
1. Clean all parts with alcohol and dry
with compressed air. Never use rags,
since even minute particles of lint would
lead to leakage.
2. I nspect connection threads and spacer
sleeves (dowel sleeves) for damage as
well as cylinder bores and pistons for
scoring and corrosion.
3. Remove dirt scraping ring by deforming
the support ring of the dirt scraping ring
all around with a suitable tool (e. g. thin
punch) to such an extent, that the
scraping ring can be removed.
Be careful not to damage seat surfaces.
47-9
Printed in Germany
-V,
1984
Disassembling and Assembling Brake Calipers

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