Check Valve - Porsche 924 Workshop Manual

20
Fuel Supply
REPLACING CHECK VALVE
Important: Conform with safety regulations when
working on fuel system!
Removing
1 . Clamp fuel feed hose with standard hose clamp
and detach pressure side hose on fuel pump by
loosening hollow union bolt or coupling nut.
Catch escaping fuel.
2. Loosen check valve, while counterholding on hexagon
of fuel pump with a narrow (machined) open-end
wrench.
Installing
1. Screw in new check valve with new seal.
This check valve is installed in addition to the
check valve integrated in a long neck version
fuel pump.
2. Install fuel line with ring and new seals, and secure
with cap nut.
20 . 12
Replacing Check Valve
924
Important: Make sure fuel hose is positioned correct-
ly and cannot rub prior to tightening
cap nut.
3. Remove hose clamp and check for leaks. I nstal I
guard again.
Printed in Germany