GMC T Series 1994 Repair Manual page 351

IDENTIFICATION MARK ON TOP OF PISTON TO
BE ASSEMBLED TOW ARD FRONT OF ENGINE
PISTON
CONNECTING ROD
BEARING
NUT
BEARING CAP
CRANKSHAFT
8 CYLINDER CASE
9 LUBRICATE CYLINDER AND PISTON W ITH
ENGINE OIL BEFORE ASSEMBLY.
2. Turn crankshaft to bottom dead center.
3. Connecting rod thread protector, refer to
4. J 8037 to piston, refer to Figure 50.
5. Piston. Align piston and connecting rod assembly
6. Remove thread protectors.
7. Bearing inserts to clean and dry connecting rod
L C 0007- 6A2 - L - E DS
Figure 18.
9
Important
• In order to provide an effective compression
seal, the ring gaps must be staggered, refer to
Figure 49.
with mark on piston top toward front of engine.
NOTICE:
Guide the lower connecting rod end
carefully to avoid damaging the crankshaft
journal while tapping the piston into the cylinder.
and cap.
NOTICE:
Bearing inserts must not be shimmed,
scraped or filed. Do not touch the bearing surface
of the insert with the bare fingers. Skin oil and
acids will etch the bearing surface.
• Make sure the bearing cap bolt holes and the
cap mating surfaces are clean and dry.
NOTICE:
Upper and lower inserts may be
different. Do not obstruct any oil passages, if
passages are obstructed, parts or system damage
could result.
Important
The inserts will project slightly when put into
place. Make sure they project an equal
distance on both sides. Make sure the insert