Volvo D20 - Page 63

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Group 21 Reconditioning engine
Assemb/y
J7
Lock camshaft in O-position
Place gauge 5190 at rear of camshaft. Insert a 0.2 mm
feeler gauge beneath left side of gauge to compensate
for timing gear clearance.
J8
Tighten camshaft front sprocket and remove
gauge 5190
Use 5199 to prevent sprocket from turning.
Torque center bolt to 45 Nm (33 f t Ibs).
Remove gauge 5190 and feel er gauge.
Va/ve adjustment
Operations J9-17
J9
Turn engine until cyl. 1 is at TDC - injection
Always use vibration damper center bolt to turn
engine. (27 mm socket or wrench 5188).
80th cylinder 1 cams should point obliquely upwards.
Check valve clearance for cyl. 1
Checking values
Cold
engine mm
Intake ................. 0.15-0.25
Exhaust ............. 0.35-0.45
Warm engine
Intake ................. 0.20-0.30
Exhaust ............. 0.40-0.50
in
0.006-0.010
0.014-0.018
0.008-0.012
0.016-0.020
J10
If the clearance is according to the above values il does
nol need to be adjusled.
I .. intake valve
A = exhaust valve
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