Piston And Connecting Rod Removal - Chevrolet 1988 Light Duty Truck Repair Manual

6A3-8 4.3 LITER V
87. T h ru s t P late
88. S cre w
PISTON AND CONNECTING ROD
REMOVAL
R em ove or D is c o n n e c t (F ig u res 9 and 10)
Tool Required:
J 5239, Guide Set.
1. Ridge or deposits from the upper end of the cylinder
bores.
• Turn the crankshaft until the piston is at BDC.
Figure 8— Replacing the Camshaft
-6
Figure 7— Camshaft and Com ponents
B-07892
• Place a cloth on top of the piston.
• Perform the cutting operation with a ridge
ream er (figure 9).
• Turn the crankshaft until the piston is at TDC.
• Remove the cloth and cuttings.
Mark the cylinder num ber on all pistons, connecting
rods, and caps. Starting at the front, the cylinders on
the left bank are numbered 1-3-5 and the right bank
is numbered 2-4-6.
Connecting rod cap. Check the connecting rod and
cap fo r id e n tific a tio n marks. Mark the parts if
required. The connecting rod and cap must be kept
together as m ating parts.
3. Connecting rod and piston.
• A ttach J 5239 to the connecting rod bolts
(figure 10).
• Use the long guide rod of J 5239 to push the
connecting rod and piston out of the bore.
Connecting rod bearing.
4.
A Ridge Reamer
B C loth
Figure 9 — Removing the Cylinder Ridge
B-07615
B-05065