Porsche 928 Workshop Manual page 266

15
Enaine. Cvlinder Head and Valve Drive 928
Camshaft assignment for Club Sport and GT version
Camshafl assignment Worldwide as from Mod. 88
Worldwide as from Mod. 89
c
Engine type 928 s 4 928 GT
M 28.41 Club Sport M 28.47
Camshaft, right
Cylinder bank l-4
Intake shaft
Exhaust shaft
328.105.291.06
328.105.293.06
Identification on
the rear face surface
291.06
293.06
Or 928.105.271.01
Or 928.105.273.01
271 .Ol
273.01
Camshaft, left
Cylinder bank 5...8
Intake shaft
Exhaust shaft
328.105.292.06 Or 928.105.272.01
328.105.29405 Or 928.105.274.01
Identification on
292.06 272.01
the rear face surface 294.05 274.01
Timings,
1 mm stroke, zero play
Intake opens 3" crank angle after TDC 3" crank angle after TDC
Intake closes
42" crank angle after BDC 42' crank angle after BDC.
Exhaust opens 30" crank angle before BDC 30" crank angle before BDC
Exhaust closes 5" crank angle before TDC 5" crank angle before TDC
Note
The camshaft designs may be installed in mixed configuration,
The camshaft adjustment gauges for cylinders 1 and 5 can be used again for the camshafts for the
engine types M 28.41 Club Sport or M 28.47, as described on Page 15-128.
15 - 140 Camshafl assignment for Club Sport and GT version
a
Printed in
Germany - XXIV, 1989