GMC 1989 Light Duty Truck Repair Manual page 449

ENGINE SET-UP AND TESTING
1. After overhaul, the engine should be tested before
installation in the vehicle. If a suitable test stand is
not available, the following procedure can be used
after the engine is installed in the vehicle.
2. Fill the crankcase with the proper quantity and
grade of oil.
? ' Im portant
• If a new camshaft or hydraulic lifters were
IN IT IA L T IG H T E N IN G S E Q U E N C E
I C p t g )
F IN A L T IG H T E N IN G S E Q U E N C E
A. Front Of Engine
Figure 41— Intake M anifold Bolt Tig h ten in g S equ en ce
C. Port B lo c k in g Plate
D. RTV S ealant
Figure 40— Intake Manifold Installation
< j> < g j)
B_ 07873
4.3 LITER V-6 6A3-25
V IE W A
V IE W B
Figure 42— Rocker Arm Cover Installation
F-05521
F-05520