Pontiac Fiero 1988 Service Manual page 347

6A2-22
2.8 LITER
¥-8
ENGINE P CARLINE
4.
3. Connecting rod bearing cap and bearing insert.
Important
Install guide hose over threads of rod bolts
to prevent damage to bearing journal and
connecting rod bolt threads.
+4-
1.
2.
3.
4.
Install or Connect
Connecting rod and piston assembly using proper
ring compressor and connecting rod bolt guide
hose.
Connecting rod bearing and cap. Tighten to
specification.
Oil pan.
Cylinder head.
Push connecting rod and piston assembly
through the top of the cylinder bore.
CRANKSHAFT
The crankshaft can be removed while the engine
is disassembled for overhaul, or without complete
disassembly. Refer to Section 6A General Engine
Mechanical.
G E N E R A L DATA
TYPE 60° V-6
DISPLACEMENT 2.8 Liters
RPO L44
BORE 89
STROKE 76
COMPRESSION RATIO 8.5:1/8.9:1
FIRING ORDER 1-2-3-4-5-6
Cylinder Bore
DIAMETER 88.992-88.070
OUR of ROUND 02 Max.
TAPER-THRUST SIDE 02 Max.
Piston
CLEARANCE 017-.043
Piston Ring
COMPRESSION
Groove Clearance
Top 030-.070
Second 040-.095
Gap
Top 25-.50
Second 25-.50
OIL
Groove Clearance 0199 Max.
Gap 0.51-1.40
Piston Pin
DIAMETER 22.9937-23.0015
CLEARANCE 0065-.0092
FIT IN ROD 0187-.0515 Press
Camshaft