Removing And Installing Valve Springs - Porsche 928 Workshop Manual

15
Engine/Cylinder Head, Valves 928
NOTES ON ASSEMBLY (32-VALVE
ENGINES)
REMOVING AND INSTALLING VALVE
SPRINGS
Cylinder head removed
Remove and install valve springs
with USA 1020 + US 1020/l.
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REMOVING AND INSTALLING VALVE
SPRINGS
Cylinder head installed
Remove and install valve springs
with Special Tool 9242.
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REMOVING AND INSTALLING VALVE STEM
SEAL
'85/'86 MODELS ONWARD
ENGINE TYPE M 28. 43/44/45/46
Pull off valve stem seal with
Special Tool 9237.
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Oil valve stem and install valve.
Push assembly sleeve over valve
stem. Oil sealing lip of valve
stem seal and position on assembly
sleeve. Using Special Tool 9225/l
carefully and gently press seal
onto valve guide until it is
seated.
-
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15 - 112 b Removing and Installing
XIX,1987
- Printed in Germany
Valve Springs
Removing and Installing Valve Stem Seal