Specifications

(6) Remove vibration damper.
(7) Remove power steering/air conditioning pulley
nut. Remove pulley.
CAUTION: Remove old thread sealant from threads
on pump.
(8) Remove pump shaft support bracket assembly
(Fig. 64).
CAUTION: When separating the timing chain cover
from the block take care not to damage the mating
surface of the timing chain cover.
(9) Remove timing chain cover.
(10) Remove oil pump drive gear on crankshaft
(Fig. 65).
(11) Remove lower chain guide (Fig. 68).
(12) Rotate crankshaft to align timing marks on
injection pump sprocket, camshaft sprocket, and
crankshaft sprocket with three dark plated links on
timing chain (Fig. 66).
CAUTION: It could take up to 70 crankshaft revolu-
tions to align sprocket timing marks with the dark
chain links. If the chain is removed (Fig. 67) before
the sprocket marks are in their proper locations you
must first loosen the rocker arm supports before
rotating crankshaft or camshaft sprockets. This will
prevent the valves from hitting the pistons.
Fig. 62 Oil Cooler
Fig. 63 Splash Shield
Fig. 64 Pump Shaft Support Bracket
Fig. 65 Oil Pump Drive Gear
NS/GS ENGINE 9 - 65
REMOVAL AND INSTALLATION (Continued)