Chevrolet 1991 Light Duty Truck Repair Manual page 345

• Adjust the piston pin installer (J 24086-9) to the
correct length, using the letter-number scale on
the installer adjuster (figure 13). This is neces­
sary to insure that the piston pin is pressed into
the piston to the correct depth. Refer to the
instructions supplied with the tool for the prop­
er setting.
• Lock the adjuster in place with the lock ring.
NOTICE: After the installer hub bottoms on
the support assembly, do not exceed 35,000
kPa (5,000 psi) pressure, as this could cause
damage to the tool.
• Place the adjuster in the support fixture. Press
the piston pin into place (until the adjustable
installer bottoms in the support fixture).
• Remove the piston and connecting rod assem­
bly from the tool and check the piston for free­
dom of movement on the piston pin.
Assembling the Piston and Connecting Rod (6.2L
Engines)
| % | Assemble (Figures 7, 14, and 15)
h k
Tool Required:
J 29134-B Piston Pin Clip Installer
1. Piston to the connecting rod.
• The piston must be installed with the piston
crown indent on the same side as the connect­
ing rod bearing tang slots (figure 14).
2. Piston pin. Apply engine oil to the pin and push
into place.
3. Snap rings. Use J 29134-B (figure 15).
| P | inspect
• Snap rings for proper assembly. Rotate the
snap rings to make sure that they are seated in
their grooves.
Rod
GENERAL ENGINE MECHANICAL 6Ar9
Figure 15—Installing the Piston Pin Snap Ring
J 29134-A
7. Snap Ring
(6.2L Engines)
F4509