Celebrity L4-151 2.5L (1982)
Technical Service Bulletin # 882786A
Date: 880701
Engine - Cam Gear Replacement w/o Engine Removal
Number:
88-278-6A
Section:
6A
Date:
JULY, 1988
Subject:
SERVICE MANUAL UPDATE
REVISED CAM GEAR REPLACEMENT SERVICE PROCEDURE
Model and Year:
1982-88 CELEBRITY WITH 2.5L (VIN R) ENGINE
TO:
ALL CHEVROLET DEALERS
This bulletin supersedes current and past service manual procedures and supersedes Chevrolet Dealer Service Bulletin Number 85-101, dated 07/85. All
copies of 85-101 should be discarded.
A set of revised service procedures has been developed for replacement of camshaft timing gears. The revised methods do not require the complete
removal of the engine from the vehicle. Cam gear replacement is generally accomplished by partially lowering the engine/cradle assembly to gain access
to the cam gear.
This bulletin contains a complete procedure for servicing cam gears on Celebrity models with 2.5L engines.
NOTICE:
SEE APPROPRIATE SERVICE MANUAL SECTION FOR FASTENER TORQUE SPECIFICATIONS.
----------------------------------------------------
TOOLS REQUIRED
J28467-A
Engine Support Fixture
J24420-B
Cam Gear Removal Tool
J25033-B
Cam Gear Installation Tool
J34995
Crankshaft Front Cover Oil Seal Installer
J8001
Universal Dial Indicator w/Magnetic Base
Remove or Disconnect
1.
Negative battery cable.
2.
Drain coolant.
3.
Belt tensioner and belt, or drive belts, as applicable.
4.
Upper engine torque strut.
5.
Timing pointer plate (as applicable).
6.
Both forward hood bumpers.
7.
Install engine support fixture - J28467-A per Service Manual.
8.
Raise vehicle.
9.
Both front wheels.
10.
Drain engine oil (remove oil filter).
11.
Steering shaft pinch bolt at steering gear.
12.
Right front lower ball joint.
13.
Right front brakeline-to-body bracket.
14.
Right front wheelhouse engine splash shield.
15.
Flywheel/flexplate cover.
16.
Crankshaft pulley (have assistant hold flywheel).
17.
Frame (cradle) bolts and insulators (4).
18.
Lower vehicle.
19.
Timing gear cover bolts (8).
20.
Lower the passenger side of the cradle/powertrain assembly 4 inches with support fixture (may require lowering of driver's side).
21.
Raise vehicle.
22.
Timing gear cover - do not distort.
CLEAN:
-
Timing gear cover and engine sealing surfaces.
23.
Align crankshaft/camshaft timing marks on gears.
24.
Drill and tap the existing camshaft center hole (8 mm drill, 1/2 inch deep).
