Porsche 928 Workshop Manual page 178

15
Engine/ Cylinder Head, Valves
928
Valve Sizes
/ i
'a4
Valve Sizes 928
Distance
Intake
Exhaust
a 43.00 mm 38.00 mm
b 8.97 mm
8.95 mm
c 110. so mm 110.90 mm
x
45O
45O
Valve Sizes 928 S
Distance 1 Intake 1 ~xhausr
a 45.00 mm 40.00 mm
b 8.97 mm
8.95 mm
110.50 mm 110.90 mm
45O 49
1 - pressure pad to install valve stem seal
2 - Valve stern seal 924 as intermediate pan
3 - Original valve stem seal
,rin
\ 4.'.
.-
/
l,!h$N:~
3 2
1
15 - 8
Disassembling and Assembling Valve Train
Printed in Germany
Shorten plastic sleeve from Type 924 by approx.
a
10 mm and place on valve srem.
I'--
Removing and lnstalling Valve Stem
sea1
(cylinder head removed)
Lubricate valve xem seal and push on to valve
guide carefully with the pressure pad.
l
Pull off valve stern seals with Special Tool 3047
Plasric Sleeve Source: Cartool
Alfred- Brehm- 5tr. 5
D 8070 Ingolstsdt/Donau