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IGNITION SYSTEM
The
912
E motor is fitted with a battery ignition system.
Due to the installation of the secondary air injection pump, the observation hole for the timing
marker
is
no longer accessible
.
The TDC marker (previously on the fan wheel) is now located on the
fan-belt pully (arrow). An angle bracket which is secured to the air intake housing serves as reference
point
.
Technical Specifications: Ignition System
Firing order:
1-4-3-2
Dwell angle
:
Timing:
27° before TDC at
3500
rpm
vacuum hose disconnected
Spark
plugs:
Bosch W
175
M
30
plug gap
0.7
mm
Beru
175114/3
L
T
he
distri
b
utor is fitted with
a
vacuum operated advance and retard mechanism
.
The vacuum hose
fo
r retarding
is
green.
18
