Electra V6-260 4.3L DSL (1984)
Camshaft Gear/Sprocket: Service and Repair
Camshaft & Injection Pump Drive & Driven Gears Replace
Fig. 31 Fuel injection pump driven gear removal and installation
1.
Remove engine assembly as previously outlined.
2.
Remove intake manifold and gasket.
3.
Remove oil pump drive assembly.
4.
Remove front cover, then rotate crankshaft so that timing marks are in alignment.
5.
Remove all rocker arms, pivots, push rods, and lifters. Note valve train component location for proper location upon installation.
6.
Remove bolt securing camshaft sprocket, then remove both cam and crank sprocket. If crank sprocket is tight on shaft, remove with a suitable
puller.
7.
Remove bolts retaining front camshaft bearing retainer, then remove retainer.
8.
Remove cam sprocket key.
9.
Remove injection pump drive gear.
10.
Remove intake manifold, intermediate pump adapter and pump adapter. Remove snap ring, selective washer, driven gear and spring, Fig. 31.
11.
Install a long bolt into camshaft to act as a handle and carefully slide camshaft out of block. Do not force the camshaft out of the block. Damage
to the bearings and or the camshaft can result. If the bearings are to be replaced, it will be necessary to remove the oil pan before
removing the bearings.
12.
Reverse procedure to install. Check injection pump driven gear end play. If end play is not .002-.006 inch, replace selective washer, Fig. 31.
Selective washers are available from .080 to .115 inch in increments of .003 inch.
