GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 374
5. If cover adheres to cylinder head,
shear off by bumping end of rocker
arm cover with palm of hand or rubber mallet. If cover still will not come
loose, CAREFULLY pry until loose. DO NOT DISTORT THE SEALING
FLANGE.
To install: 6. Clean the sealing surface of cyli nder head and intake manifold of all old
RTV or gasket. Make sure no oil or ol d gasket is present when applying
new RTV or gasket.
7. Place a
1/8 in. (3mm) bead of RTV sealan t all around the rocker arm
sealing surface or use a cork style gasket. (When going around the
attaching bolt holes, always flow t he RTV on the inboard side of the
holes).
8. Install cover and torque bolts to 8 ft. lbs. (11 Nm).
9. Finish installation by reversing removal procedure.
PUSHROD SIDE COVER
REMOVAL & INSTALLATION
2.5L ENGINE 1. Disconnect the negative battery cable.
2. Mark and remove the distributor assembly.
3. Remove the ignition coil and bracket.
4. Remove the side cover retaining nuts and remove the cover.
To install: 5. Clean the cover sealing surfaces of all RTV or gasket material.
6. Place a
1/16 in. (5mm) bead of RTV sealan t all around the rocker arm
sealing surface or use a cork style gasket. (When going around the
attaching bolt holes, always flow t he RTV on the inboard side of the
holes).
7. Install cover and torque bolts to 89 inch lbs. (10 Nm).
8. Finish installation by reversing removal procedure.
GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 378
6. Install the rocker arm, balls and
nut. Tighten the nut until all lash is
eliminated.
7. The engine must be on the No. 1 fi ring position before proceeding. This
may be determined by placing your fi ngers on the No. 1 rocker arms as
the mark crankshaft damper is rotat ed towards the "0" on the timing tab.
If the arms did not move, it is in the No. 1 firing position. If they did move,
turn the crankshaft one full revoluti on to reach the No. 1 position.
Remember, the mark on the crankshaft balancer must be aligned with
the "0" on the timing tab.
8. Adjust the valves as follows:
V6 ENGINES
With the engine on the number 1 firing pos ition, exhaust valves 1, 2 and 3 and
intake valves 1, 5 and 6
may be adjusted. Back out t he adjusting nut until lash is felt at the pushrod.
Tighten the adjusting nut unt il all lash is removed, then tighten the nut an
additional 1
1/2 turns to center the lifter plun ger. Turn the engine one revolution
until the "0" timing mark is once again al igned. Exhaust valves 4, 5 and 6 and
intake valves 2, 3 and 4 may be adjusted.
V8 ENGINES
With the engine on the number 1 firing posit ion, exhaust valves 1, 3, 4 and 8,
intake valves 1, 2, 5 and 7 may be adj usted. Back out the adjusting nut until
lash is felt at the pushrod. Tighten the adjusting nut until all lash is removed,
then tighten an additional 1 turn to center the lifter plunger. Turn the engine one
revolution until the 0 timing mark is once again aligned. Exhaust valves 2, 5, 6
and 7, intake valves 3, 4, 6 and 8 may be adjusted.
9. Install the rocker arm cover.
2.5L ENGINE 1. Disconnect the negative battery cable.
2. Remove the valve cover.
3. Remove the rocker arm bolt, ball and rocker arm.
4. Remove the pushrods, if necessary . Place components in a rack so they
can be reinstalled in the same location.
To install: 5. Coat the bearings surf aces with a thin coating of Molykote® or its
equivalent.
6. Install the pushrod, if removed, through the cylinder head and into the
lifter seat.
7. Install the rocker arm, ball and bol t. Torque to 22 ft lbs. (30 Nm).
8. Install the valve cover.
GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 381
It is not necessary to remove the radi
ator hose from the thermostat housing.
4. Remove the two retaining bolts from the thermostat housing and remove
the thermostat.
To install: 5. Using a new gasket, install the thermostat and housing.
6. Tighten the bolts to 21 ft lbs. (28 Nm).
7. Fill and bleed t he cooling system.
INTAKE MANIFOLD
REMOVAL & INSTALLATION
When servicing all vehicles, be absolutel y sure to mark vacuum hoses and
wiring so that these items may be properly reconnected during installation. Also,
when disconnecting fitting lines (fuel lines, power brake vacuum lines,
transmission and engine cooler lines, etc.), always use two flare nut (or line)
wrenches. Hold the wrench on the large fitti ng with pressure on the wrench as if
you were tightening the fitting (clockw ise), THEN loosen and disconnect the
smaller fitting from the larger fitting. If this is not done, damage to the line will
result. Always relieve fuel system pressure before disconnecting lines.
CAUTION - When draining the coolant, keep in mind that cats and dogs are
attracted by the ethylene gl ycol antifreeze, and are quite likely to drink any that
is left in an uncovered container or in puddles on the ground. This will prove
fatal in sufficient quantity. Always drai n the coolant into a sealable container.
Coolant should be reused unless it is contaminated or several years old.
2.5L ENGINE
Fig. 1: Intake manifold bol t torque sequence for 2.5L engine
1. Disconnect the negative batte ry cable at the battery.
2. Remove the air cleaner assembly.
3. Remove the PCV valve and hose.
4. Drain the cooling system.
5. Disconnect the fuel lines from the Throttle Body Injection (TBI) unit.
6. Mark and disconnect the vacuum li nes and the electrical connections
from the TBI unit.
7. Disconnect the linkage from the TBI unit (throttle, downshift, and/or
cruise control, as applicable).
8. Disconnect the coolant inlet and outlet hoses from the intake manifold.
9. Remove the air conditioning co mpressor support brackets and the
compressor. DO NOT disconnect the refrigerant lines from the
compressor. Lay the compressor aside.
10. Remove the manifold attachi ng bolts and remove the manifold.
To install:
GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 382
11. Position the manifold into place and install manifold attaching bolts.
Torque manifold bolts to specificat ion (see illustration for tightening
sequence and torque specifications).
12. Install the air conditioning comp ressor and compressor support brackets,
if so equipped.
13. Connect the coolant inlet and outlet hoses to the intake manifold.
14. Connect the linkage to the TBI unit (throttle, downshift, and/or cruise
control, as applicable).
15. Connect the vacuum lines and the elec trical connections to the TBI unit.
16. Connect the fuel lines to the Th rottle Body Injection (TBI) unit.
17. Install the PCV valve and hose.
18. Install the air cleaner assembly.
19. Connect the negative battery cable at the battery.
20. Fill the cooling system.
2.8L AND 5.0L CARBURETED ENGINES
Fig. 2: Intake manifold bolt removal
GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 385
Fig. 6: Intake manifold bolt torque sequ ence for V8 engines, except Crossfire
GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 388
To install:
18. Clean the sealing surfaces.
19. Install the gaskets and apply a
3/16 in. (5mm) bead of RTV sealant on the
front and rear ridge of the cylinder case.
20. Hold the gaskets in place by ex tending the RTV bead up onto the gasket
ends. Use sealer at the water passages.
21. Position the intake manifold as sembly onto the engine and install the
intake manifold-to-cylinder head bolts. Torque bolts in sequence to 25-45
ft. lbs. (34-61 Nm).
22. Connect the heater hose to the intake manifold.
23. Connect the upper radiator hose to the thermostat housing.
24. Install the distributor.
25. Position the TBI and plate assembly on the intake manifold with a new
gasket. Install the bolts which attach the upper manifold plate (or TBI
plate) to the intake manifold and torque to specification.
26. If the TBI units on CFI engines were removed, install the fuel balance
tube (connecting the units).
27. Connect vacuum hoses which were disconnected for removal of the manifold.
28. Connect the positive crankcase ventilation valve hose.
29. Install the cable bracket to the m anifold and connect the accelerator and
cruise control cables.
30. Install the power brake booster line.
31. Connect the fuel return line at the TBI unit.
32. Connect the wiring to the idle air motors, injectors, and the throttle
position sensor (TPS).
33. Install the exhaust gas re circulation (EGR) solenoid.
34. Connect the fuel inlet line to the TBI unit.
35. Install the air cleaner assembly.
36. Connect the negative battery cable at the battery.
37. Fill the cooling system.
38. Start the engine and check for leaks.
Fig. 8: Crossfire fuel injection intake manifold bolt torque sequence
GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 389
1988-1992 MODELS
1. Disconnect the negative battery cable.
2. Drain the cooling system.
3. Remove the air cleaner.
4. Remove the throttle body.
5. Label and unplug all vacuum hose and electrical connections on the manifold.
6. Disconnect the upper radiator hose from the manifold.
7. Mark the distributor position and remove it.
8. Remove the EGR valve, if necessary.
9. Remove the intake manifold bolts and studs.
10. Remove the manifold and discard the gaskets.
To install: 11. Make sure the sealing surfaces are clean.
12. Install the gaskets and apply a
3/16 in. (5mm) bead of RTV sealant on the
front and rear ridge of the cylinder block.
13. Hold the gaskets in place by ex tending the RTV bead up onto the gasket
ends. Use sealer at the water passages.
14. Install the intake manifold.
Sealing of the intake mani fold to the "V" of the engine is obtained by employing
an intermediate torque specification to a ll the attaching bolts, alternately, in the
proper sequence. This step is used to rock the manifold into place before
applying the final torque figur e. Failure to follow this two-step procedure can
result in possible leaks.
15. Install the intake manifold attach ing bolts. Tighten them, using the proper
sequence, to 89 in lbs. (10 Nm).
16. Final torque the bolts, using the proper sequence, to 35 ft lbs. (47 Nm\
).
17. Install the EGR valve.
18. Install the distributor.
19. Connect the upper radiator hose to the thermostat housing.
20. Install the throttle body.
21. Engage all electrical and hose connections.
22. Fill the cooling system.
23. Connect the negative battery cable.
24. Install the air cleaner.
1985-1992 MFI ENGINES
2.8L AND 3.1L ENGINES
GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 391
8. Remove the plenum attaching bolts and plenum. Discard the gaskets.
9. Remove the fuel rail.
10. Label and unplug the wires
from the spark plugs.
11. Label and unplug the wires at the coil.
12. Remove the distributor cap and spark plug wires.
13. Mark the distributor position and remove it.
14. Label and disconnect the emission canister hoses.
15. Remove the valve covers.
16. Remove the upper radiator hose at the manifold.
17. Unplug the coolant switch and sensor.
18. Remove the heater inlet pipe from the manifold.
19. Remove the center intake manifold bolts.
20. Remove the center intake mani fold and gasket. Discard the gasket.
21. Remove the transmission dipstick.
22. Remove the manifold bolts.
23. Remove the manifold. Discard t he gaskets and remove the RTV sealant
from the front and rear ridges of the block.
To install: 24. Apply a
3/16 in. (5mm) bead of RTV sealant on the front and rear ridges of
the block. Make sure the surfaces are clean.
25. Install the new gaskets on the cylinder heads. Hold the gaskets in place by extending the RTV bead up onto t he gasket ends. Certain GM intake
gaskets will have to be cut to be install behind the pushrods. Cut these
gaskets as required and only where necessary.
26. Install the intake m anifold along with the intake manifold bolts. Torque
bolts in sequence to 13-25 ft. lbs. ( 18-34 Nm) on 2.8L engines and 19 ft
lbs. (26 Nm) on 3.1L engines.
27. Install the center intake manifold with a new gasket. Tighten the bolts to
15 ft lbs. (21 Nm).
28. Connect the coolant switches.
29. Install the upper radiator hose.
30. Install the valve covers.
31. Install the heater inlet pipe.
32. Connect the emission canister hoses.
33. Install the distributor to the matc hmarks, hold down bolt, spark plug wires
and distributor cap.
34. Install the spark plug wires to th e spark plugs and connect the wires at
the coil.
35. Install the fuel rail.
36. Install the plenum with new gaskets . Tighten the bolts to 18 ft lbs. (25
Nm) on 2.8L engines or 15 ft lbs. (21 Nm) on 3.1L engines.
37. Install the A/C compressor-to-plenum bracket and attaching hardware.
38. Install the EGR transfer tube with a new gasket. Tighten the bolts to 19 ft
lbs. (26 Nm).
39. Install the throttle body.
40. Connect the vacuum harness and ai r inlet duct to the throttle body.
41. Install the transmission dipstick.
42. Connect and other rema ining hoses or wires.