GMC C Series 1993, Repair Manual

Page: 166 / 264

6A2-10 V8 ENGINES, GASOLINE
C. To avoid mismatching the connecting rbds and
connecting rod cap, remove only one connect­
ing rod cap at a time. Place the piston at the
bottom of its stroke.
D. Remove the connecting rod cap.
E. Install J 5239 onto the connecting rod bolts (fig­
ure 17). Use of the specified guide set will pre­
vent the connecting rod from scratching the
bore or crankshaft journal during the removal
process. The tool will also prevent the rod bear
ing half from failing out of the connecting rod
during removal.
3. Connecting rod and piston from the block.
A. Push on the guide rod to push the piston ahd
connecting rod out (figure 17).
B. Use the guide rod to prevent the connecting rpd
from scoring the cylinder bore.
C. Assemble the connecting rod cap onto the con­
necting rod. Do not tighten.
D. Repeat this procedure on the remaining piston
and connecting rod assemblies.
FLYWHEEL REMOVAL
R e m o v e o r D i s c o n n e c t ( F i g u r e 1 8 )
1. Bolts (111).
2. Retainer (113), automatic transmission only.
3. Flywheel (11Q) and flexplate (112). Flexplate (112)
applies to automatic transmission only.
4. Retainer (113), AT 545 transmission only.
CRANKSHAFT REMOVAL
R e m o v e o r D i s c o n n e c t ( F i g u r e i 9 )
• Check the main bearing caps for location markings.
Mark the caps if necessary. The caps must be
returned to their original Ideations during assembly.
1. Bolts (134).
2. Main bearing caps (132 and 133).
M 0 3 0 3
F i g u r e 1 7 — R e m o v i n g t h e P i s t o n a n d C o n n e c t i n g
^ R o d ,
3. Crankshaft. Lift the crankshaft straight up, taking
care to avoid damage to the crankshaft journals
and thrust flange surfaces.
4. Rear seal (131). .
5. Main bearing inserts (135 and 136). If the main
bearings are to be reused, mark them to ensure
they are installed in their original positions before
removai.
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