Porsche 928 Workshop Manual page 250

928
Motor, Zylinderkopf, Ventiltrieb
15
0
Camshaft installation type 928 S4 - 928 GTS (54 I)
Camshaft World-wide
World-wide
Installation
model 88 onward model 92 onward
Camshaft, right
Cylinder bank 1 - 4
Intake shaft
Exhaust shaft
928.105.271 .OO
928.105.271.03
928.105.273.00
928.105.273.03
Identification code
on the rear
End face
271 .OO
271.03
273.00
273.03
Camshaft, left
Cylinder bank 5 - 8
Intake shaft
Exhaust shaft
928.105.272.00
928.105.272.03
928.105.274.00 928.105.274.03
Identification code
on the rear
end face
272.00
272.03
274.00
274.03
Valve timing,
1 mm stroke, zero
play
Intake opens
11. CS after
TDC 13' CS after TDC
Intake closes
36' CF after BDC
6i' CS after BDC
Exhaust opens
17' CS before BDC
28O CS before BDC
Exhaust closes 2' CS before TDC
12' CS before TDC
Englne type 928 S
M 28.41142
Englnetype 928 GTS (5,4 I)
M. 28.49150
The camshafts of 87 and 88 models may be combined for installation.
Camshaft installation type 928 S4 - 928 GTS (5,4 I)
Printed in Germany - XXVII, 1991
15-124a