Porsche 1972 911 Workshop Manual page 959

A d j u s t i n g l g n i r i o n T i m i n g - l 1 I 8 0 M o d e l s
1. Run engine t o operating temperature (oil
temperature approx. 9 0 ~ / 1 9 4 ' F).
2. Connect engine tester.
0
A d j u r i n g Values: 5 before TDC a t
Pull off vacuum hoses.
+
Adjust speed t o 050 50 rpm
0
50 rpm
3. Connect timing light.
A t specified engine speed ihe 5 mark on
pulley must be opposite notch on blower
housing.
Adjust idle speed after connecting the vacuum
hoses.
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