Chevrolet 1988 Light Duty Truck Repair Manual page 381

31. B olt
32. R ocker Arm Ball
33. R ocker Arm
45. Push Rod G uide
47. Push Rod
Figure 54 — Valve Train Com ponents
Figure 55 — Applying Sealant to the Rocker
Arm Cover
2.5 LITER L4 ENGINE 6A1-29
VALVE TRAIN COMPONENT
+<• Install or C o n n e c t (F ig u res 3, 5, 54, 55 and 56)
• Lubricate the hydraulic lifters (121) with Engine Oil
S u p p le m e n t (G M
equivalent.
1. H ydraulic lifters (121) into their mating bores in the
block.
2. Hydraulic lifter guides (122).
3. Retainers (123) and studs (60).
$ T ig h ten
• Studs (60) to 10.0 N m (90 in. lbs.).
4. Pushrod cover (50).
• Apply a 5mm (3/ie-inch) bead of RTV sealant
to the pushrod cover as shown in figure 56.
5. Pushrod cover nuts.
6. Pushrods (47). Seat the pushrods into the sockets of
the hydraulic lifters.
• Coat the m ating surfaces of the rocker arms (33)
F-01989
and balls (32) with a m olybdenum disulfide grease.
7. Rocker arms (33).
8. Balls (32).
9. Bolts (31).
St
T ig h ten
• B o lts to 30 N m (22 ft. lbs.
OVERTIGHTEN.
• Apply a 5 mm (3/ie-inch) bead of RTV sealant to the
rocker arm cover, inboard of the bolt holes.
10. Rocker arm cover to the cylinder head. Install the
cover while the RTV is still wet (within 10 minutes).
11. Rocker arm cover bolts.
£
T ig h ten
• Bolts to 5.0 N m (48 in. lbs.).
WATER PUMP INSTALLATION
-► 4-
Install or C o n n ec t (Figure 57 and 58)
1. Gasket.
2. Water pump.
3. Bolts.
4. Water pum p pulley.
INSTALLATION
p a rt n u m b e r 1 0 5 1 3 9 6 ) o r
DO NOT