Pontiac Fiero 1988 Service Manual page 342

2.8 LITER V-6 ENGINE P CARLINE 6A2-17
Figure 15 Oversize Lifter Marking
If the lifters are removed, they must be reinstalled
in their original location. If replacement is necessary
use lifters with a narrow flat ground along the lower
3/4 of lifter. These flats provide additional oil to the
cam lobe and lifter surfaces.
1.
2.
3.
4.
Remove or Disconnect
Drain coolant.
Intake manifold.
Valve mechanism.
Valve lifter.
Inspect
• For inspection and overhaul procedures
refer to Section 6A General Engine
Mechanical
Install or Connect
Whenever new valve lifters are being installed,
coat foot of valve lifters with "Molykote" or
equivalent.
1.
2.
3.
4.
Valve lifter.
Valve mechanism
Intake manifold.
Engine coolant
Adjust
• Valve lash
CYLINDER HEAD
Left
«-+| Remove or Disconnect
Raise vehicle.
Drain coolant from block.
Lower vehicle.
Intake manifold
Exhaust crossover pipe.
Generator bracket
Oil level indicator tube.
Loosen rocker arms until able to remove push
rods.
Cylinder head bolts.
Cylinder head.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
•>4-
2.
3.
9
10,
|ue Sequence
| C 6
~ 2 0 3Q 7Qj
kQ5 — 1 Q — 4 U 8 ^
13
Figure 16 Cylinder Head Installation
Clean
Gasket surfaces on the head, cylinder block
and intake manifold.
Cylinder block bolt threads
Cylinder head bolts
Inspect
• For cylinder head overhaul procedures,
refer to Section 6A General Engine
Mechanical
Install or Connect
Place the gasket in position over the dowel pins,
with the note "This Side Up" showing.
Cylinder head.
Coat cylinder head bolt threads with GM
1052080 Sealer, or equivalent, and install bolts.
Tighten
• Bolts in sequence - 90 N-m (66 lb.ft.)
(Figure 16).
Push rods and loosely retain with rocker arms.
j 9 J important
• Make sure lower ends of push rods are in
lifter seats.
S3 Ad ^ ust
• Valve lash.
Intake manifold and gaskets.
Oil level indicator tube bracket to head.
Heat stove pipe and air supply pipe.
Attach alternator bracket and stud.
Exhaust pipe.
Exhaust Crossover Pipe.