Chevrolet 1991 Light Duty Truck Repair Manual page 381

Figure 43—Applying RTV to the Timing Gear Cover
2 Timing gear cover, with J 34995 in place, to the
block.
3. Bolts (94) (Figure 45).
Tighten
• Bolts to 10.0 N m (90 in. lbs.).
• Remove J 34995 from the timing gear cover.
Figure 45—Timing Gear Cover and Components
2.5L L4 ENGINE 6A1-23
CRANKSHAFT PULLEY HUB
INSTALLATION
+ + Install or Connect (Figures 4 and 45)
1. Crankshaft pulley and hub. Slide the hub on the
crankshaft until it bottoms against the crankshaft
gear.
2. Bolt (98) and washer (99).
^ Tighten
• Hub retaining bolt to 220 N-m (160 ft. lbs.).
PISTON AND CONNECTING ROD
INSTALLATION
f»<-| Install or Connect (Figures 4, 46 and 47)
Tool Required:
J 8037 Piston Ring Compressor.
• Make sure the cylinder walls are clean. Lubricate
the cylinder wall lightly with engine oil.
• Make sure the piston is installed in the matching
cylinder. Refer to "Piston and Connecting Rod
Assemblies" in this section.
1. Connecting rod bearing inserts (55).
• Be certain that the inserts are the proper size.
• Install the bearing inserts in the connecting rod
and connecting rod cap.
• Lubricate the bearings with engine oil.
2. Piston and connecting rod to the proper bore.
• With the connecting rod cap removed. Install
two sections of 10 mm (3/8 inch) rubber hose
over the connecting rod studs.
• Locate the piston ring end gaps as shown in
figure 48. Lubricate the piston and rings with
engine oil.
• Without disturbing the ring end gap location,
install J 8037 over the piston.
• The piston must be installed so that the notch
in the piston faces the front of the engine.