Pontiac Fiero 1988 Service Manual page 345

6A2-20 2.8 LITER V-6 ENGINE P CARLINE
Figure 19 Timing Chain and Sprockets
# 1 CYLINDER
AT T.D.C.
# 4 CYLINDER
AT T.D.C.
Figure 20 Camshaft Timing
2. Apply "Molykote" or equivalent to the sprocket
thrust surface.
3. Hold the sprocket with the chain hanging down
and align the marks on the camshaft and
crankshaft sprockets. (Figure 20).
4. Align dowel in camshaft with dowel hole in
camshaft sprocket.
5. Draw the camshaft sprocket onto camshaft, using
the mounting bolts. Torque to specifications.
6. Lubricate timing chain with engine oil.
7. Crankcase front cover.
CAMSHAFT
1.
2.
3.
4.
5.
6.
Remove or Disconnect
Engine (on cradle).
Valve lifters.
Crankcase front cover.
Timing chain and sprocket.
Rear cover (Figure 21).
Camshaft.
NOTICE: All camshaft journals are the same
diameter and care must be exercised in removing
camshaft to avoid damage to bearings.
s£®l
Inspect
• For inspection of camshaft, replacement of
camshaft bearings, and overhaul of lifters
refer to Section 6A General Engine
Mechanical.
H M H Install or Connect
Important
1.
2.
3.
4.
5.
6.
7.
• Whenever a new camshaft is installed, coat
camshaft lobes with GM E.O.S. or
equivalent.
Lubricate camshaft journals with engine oil
Camshaft
Timing chain and sprocket.
Rear cover.
Crankcase front cover.
Lifters.
Engine
Inspect
• For proper completion of repair
• For fluid leaks
Figure 21 Camshaft Rear Cover
OIL PAN
Figure 22
f+I
Remove or Disconnect
Negative battery cable.
Raise vehicle.
Drain crankcase.
Flywheel shield or clutch housing cover.
Starter.
Oil pan bolts.
Oil pan.
1.
2.
3.
4.
5.
6.
7.