Pontiac Fiero 1988 Service Manual page 309

6A1-8 2.5L ENGINE
• Fuel lines.
11. Heater hose from intake manifold.
12. Wiring connections from intake manifold and
cylinder head - all.
13 Vacuum hoses.
14. Engine strut rod bolt from upper support (A and
P Carlines only).
15. A/C brackets, A/C compressor (swing aside) (if
top mounted).
16. Generator brackets (swing aside).
17. Power steering pump bracket-upper (if top
mounted).
18. Radiator hoses.
19. Rocker arm cover.
20. Rocker arms.
21. Push rods.
22. Cylinder head bolts.
23. Cylinder head.
OFF CAR SERVICE OF CYLINDER HEAD
ASSEMBLY
• For inspection and overhaul of cylinder head
refer to Section 6A General Engine Mechanical.
• Intake and exhaust manifolds may be removed to
service cylinder head.
Clean
Clean all oil and foreign material from
gasket surfaces of head and block. Surfaces
must also be free of nicks or heavy
scratches.
Retaining bolt and cylinder block threads
must be clean. Dirt will affect bolt torque.
Install or Connect
L New gasket over dowel pins in cylinder block.
2. Cylinder head into place over dowel pins.
3. Cylinder head retaining bolts - fingertight.
Tighten
# Cylinder head bolts gradually with torque
wrench to 25 N-m (18 lb. ft.) in sequence
shown in Fig. 12.
m Repeat sequence, bringing torque to 35
N
e
m (26 lb. ft.) on all bolts except number
9. Retorquenumber9 to25 N-m(18lb. ft.).
# Repeat sequence, turning all bolts 90
degrees.
4. Push rods.
5. Rocker arms.
6. Rocker arm cover.
7. Radiator hose.
8. Power steering pump bracket - upper (if top
mounted).
9. Generator bracket and belt.
10. A/C compressor and bracket (if top mounted).
11. Engine strut rod bolt (A and P Carlines only).
12. All wiring connections to intake manifold and
cylinder head.
13. Vacuum hoses.
15.
16
17
18.
19.
20.
21.
22.
23.
To TBI assembly.
• Wiring.
• Throttle linkage.
• Fuel lines.
Oil level indicator tube.
Air cleaner.
Coolant.
Raise car.
Exhaust pipe.
Oxygen sensor connector.
Lower car.
Negative battery cable.
Inspect
• For fluid leaks.
• For proper completion of repair.
F O R C E BALANCER A S S E M B L Y
4-+ Remove or Disconnect
1. Oil pan.
2. Balancer Assembly.
1 - BALANCER
A S S E M B L Y
2 - RESTRICT0R
3 - FILTER
4 - OIL PAN
6 - PLUG
7 - BOLT
Fig. 13 Balancer Assembly
Install or Connect
1. Balancer assembly. Short bolts (88mm)-12 N-m
(9 lb. ft.), plus a 75° turn. Long bolts (108mm)-12
N-m (9 lb. ft.), plus a 90° turn.