heater CHEVROLET CAMARO 1982 Repair Guide

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 398
16. Install all components removed.
17. Connect the oxygen sensor.
18. Install the spark plug wire heat shields.
19. Connect the spark plug wires.
20. If equipped, install the air
cleaner pre-heater shroud.
21. If equipped, connect the air injection reaction pipes.
22. Connect the battery.
2.5L ENGINE

Fig. 7: Exhaust 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 , be sure to mark any disconnected
hoses for proper reinstallation.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 405
3. Remove the fan-to-water pum
p attaching bolts or nuts.
4. Remove the fan belts.
5. Remove the cooling fan and clut ch assembly. Separate the clutch
assembly from the fan.
Store the clutch in an upright position to prevent seal leakage.
6. Installation is the revers e of the removal procedure.
WATER PUMP
REMOVAL & INSTALLATION
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: Water pump - 2.5L
1. Drain the cooling system.
2. Remove the accessory drive belts.
3. Remove the fan and pump pulley.
4. Remove the heater hose and lower r adiator hose from the water pump.
5. Remove the pump from the block.
To install: 6. Coat the new gasket with RTV sealer . Install the pump and torque bolts
to 25 ft lbs. (34 Nm).
7. Install the hose and lower radi ator hose to the water pump.
8. Install the pum p pulley and fan.
9. Install the accessory drive belts.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 406
10. Fill the cooling syst
em, start the engine and check for leaks.
V6 ENGINES 1. Disconnect the negative battery cable.
2. Drain the cooling system.
3. Remove the air intake duct and air cleaner, if necessary.
4. Remove the drive belt.
5. Disconnect the heater and radiator hoses from the water pump.
6. Remove the power steering pump bracket and swing aside.
7. Remove the water pump bolts. Mark the bolts to their corresponding
locations for proper installation.
To install: 8. Clean the gasket surface.
9. Install the water pump with a new gasket. Apply sealer to the bolt
threads.
10. Tighten the large bolts to 25 ft lbs. ( 34 Nm), medium bolts to 15 ft lbs. (21
Nm) and the small bolts to 88 inch lbs. (10 Nm).
11. Install the power steering pump bracket.
12. Connect the heater and radiator hoses.
13. Install the drive belt.
14. Install the air cleaner and duct.
15. Fill the cooling syst em. Start the engine and check for leaks.
V8 ENGINES

Fig. 2: Removing the heater hoses

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 408

Fig. 5: Scraping off the old gasket material
1. Disconnect the negative battery cable.
2. Drain the cooling system.
3. Remove the air intake duct and air cleaner, if necessary.
4. Remove the drive belt(s) and the water pump pulley.
5. Disconnect the heater and radiator hoses from the water pump.
6. Remove the water pump attaching bolts, then remove the pump. Mark
the bolts to their corresponding loca tions for proper installation.
To install: 7. Clean the gasket mating surfaces.
8. Install the water pump with a new gasket.
9. Install the coolant pump and bolts to the front cover using the dowel pins
as a guide.
10. Tighten the bolts to 30 ft lbs. (41 Nm).
11. Connect the heater and radiator hoses to the water pump.
12. Install the water pump pu lley and the drive belt(s).
13. Fill the cooling syst em. Start the engine and check for leaks.
CYLINDER HEAD
REMOVAL & INSTALLATION
CAUTION - Properly relieve the fuel system pressure before disconnecting any
lines.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 409
When servicing the engine, be absolutely sure to mark vacuum hoses and
wiring so that these items
may be properly reconnected during installation. Also,
when disconnecting fittings of metal lines (fuel, power brake vacuum), always
use two flare nut (or line) wrenches. Ho ld the wrench on the large fitting with
pressure on the wrench as if you were tightening the fitting (clockwise), THEN
loosen and disconnect the smaller fitting fr om the larger fitting. If this is not
done, damage to the line will result.
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: Cylinder head bolt torque sequence for 2.5L engine
1. Disconnect the negative battery cable.
2. Drain the engine block and radiator of coolant.
3. Raise and safely support the vehi cle. Remove the exhaust pipe and
lower the vehicle.
4. Remove the oil level indicator tube.
5. Remove the air cleaner.
6. Unplug the electrical and vac uum connections and disconnect the
linkage from the TBI unit.
7. Disconnect the fuel lines.
8. Remove the EGR valve.
9. Disconnect the heater hoses from the intake manifold.
10. Remove the ignition coil.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 428
1. Disconnect the battery ground c
able. Drain the cooling system.
2. Remove the fan shroud or the upper radiator support and drive belts.
Remove the fan and pulley from the water pump.
3. Remove the alternator upper and lower brackets, air brace with brackets,
and power steering lower bra cket (move it aside).
4. Remove the radiator lower hose and the heater hose from the water
pump. Remove the water pump bolts and the water pump.
5. If A/C equipped, remove the comp ressor and move aside. Remove the
compressor mounting bracket.
6. Remove the damper pulley retain ing bolt and the damper pulley.
7. Remove the timing gear cover bolts and the timing gear cover.
With the timing gear cover removed, use a large screwdriver to pry the oil seal
from the cover. To install the new oil se al, lubricate it with engine oil and drive it
into place.
To install: 8. Prepare the mating surfaces for reinst allation of the timing gear cover.
Coat the new gasket with RTV sealer.
9. Install the timing gear cover and timing gear cover bolts. Torque the
cover bolts to specifications:
• V6 engines (M8 x 1.25 bolts): 13-22 ft. lbs. (18-30 Nm)
• V6 engines (M10 x 1.5 bolts): 20-35 ft. lbs. (27-48 Nm)
• V8 engines (all bolts): 69-130 inch lbs. (8-14 Nm)
10. Install the damper pulley by pulli ng the damper onto the crankshaft. Use
tool J-23523 or equivalent. Install t he damper pulley retaining bolt and
torque bolts to 67-85 ft lbs. (90-110 Nm).
11. If A/C equipped, install the compressor mounting bracket and
compressor.
12. Install the water pump and the water pump bolts.
13. Install the radiator lower hose and the heater hose to the water pump.
14. Install the alternator upper and lower brackets, air brace with brackets
and the power steering lower bracket.
15. Install the fan and pull ey to the water pump. Inst all the fan shroud or the
upper radiator support and drive belts and adjust.
16. Connect the battery ground cable.
17. Fill the cooling syst em, start the engine and check for leaks.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 443
Ensure that oil holes are properly al
igned. Replace camshaft rear plug, and
stake it into position to aid retention.
INSPECTION
CAMSHAFT LOBE LIFT
Check the lift of each lobe in consecutiv e order and make a note of the reading.
1. Remove the fresh air inlet tube a nd the air cleaner. Remove the heater
hose and crankcase ventilation hoses. Remove valve rocker arm
cover(s).
2. Remove the rocker arm stud nut or fulcrum bolts, fulcrum seat and rocker
arm.
3. Make sure the pushrod is in the valve tappet socket. Install a dial indicator so that the actuating poin t of the indicator is in the pushrod
socket (or the indicator ball socket adapter tool is on the end of the
pushrod) and in the same plane as the pushrod movement.
4. Disable the ignition and fuel systems.
5. Install a remote starter switch. Crank the engine with the ignition and fuel
system disabled. Turn the crankshaft ov er until the tappet is on the base
circle of the camshaft lobe. At this position, the pushrod will be in its
lowest position.
6. Zero the dial indicator. Continue to rotate the crankshaft slowly until the
pushrod is in the fully raised position.
7. Compare the total lift recorded on the dial indicator with the specification
shown on the Camshaft Specification chart.
To check the accuracy of the original in dicator reading, continue to rotate the
crankshaft until the indicator reads zero. If the lift on any lobe is below specified
wear limits listed, the ca mshaft and the valve tappet operating on the worn
lobe(s) must be replaced.
8. Install the rocker arm, fulcrum seat and stud nut or fulcrum bolts. Adjust
the valves, if required (r efer to the valves procedure in this section).
9. Install the valve rocker arm cover(s) and the air cleaner.
CAMSHAFT END PLAY
On all gasoline V8 engi nes, prying against the aluminum-nylon camshaft
sprocket, with the valve train load on t he camshaft, can break or damage the
sprocket. Therefore, the rocker arm adj usting nuts must be backed off, or the
rocker arm and shaft assembly must be loosened sufficiently to free the
camshaft. After checking the camshaft e nd play, check the valve clearance.
Adjust if required (refer to procedure in this section).
1. Push the camshaft toward the rear of the engine. Install a dial indicator or
equivalent so that the indicator point is on the camshaft sprocket
attaching screw.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 501

Fig. 5: Use a ball type cylinder hone to remove any glaze and provide a new
surface for seating the piston rings
PISTONS AND CONNECTING RODS
Only pistons with the wrist pin retained by C-clips are serviceable by the home-
mechanic. Press fit pistons require special presses and/or heaters to
remove/install the connecting rod and sh ould only be performed by a machine
shop.
All pistons will have a mark indicating the direction to the front of the engine and
the must be installed into the engine in that manner. Usually it is a notch or
arrow on the top of the piston, or it ma y be the letter F cast or stamped into the
piston.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 570
Switch (TVS). The electrical type, cons
ists of a ceramic grid located under the
base of the carburetor.
A check of the operation should be made at regular maintenance intervals.
TESTING
VACUUM SERVO TYPE 1. With the engine cold, observe the posit ion of the actuator arm. Start the
engine. The arm should move toward the diaphragm (closing the valve).
2. If the arm does not move, remove the hose and check for vacuum. If still
no vacuum, remove the top hose from the TVS switch and check for
vacuum.
3. If vacuum is present in the top hose, replace the TVS switch.
4. If vacuum is present at the actuator and it does not move, try to free the
valve. If the valve cannot be freed, it must be replaced.
ELECTRICAL TYPE 1. Turn the ignition ON with the engine co ld and probe both terminals of the
heater switch connector with a test light.
• If 1 wire has power, replace the heater switch.
• If neither wire has power, repai r the ignition circuit.
• If both wires have power, probe the pink wire at the heater
connector (if no power, repair the c onnector of the heater switch).
2. If power exists at the pink wire , disconnect the heater connector and
connect a tester across the harness terminal. If no power, repair the
ground wire; if power exists, check the resistance of the heater.
3. If heater is over 3 ohm s, replace the heater. If under 3 ohms, replace the
connector, start the engine (operate to normal temperature) and probe
the pink wire. If no power, the system is OK; if power exists, replace the
heater switch.
REMOVAL & INSTALLATION
VACUUM SERVO TYPE 1. Disconnect the vacuum hose at the EFE.
2. Remove exhaust pipe to manifold nuts.
3. Remove the crossover pipe. Complete removal is not always necessary.
4. Remove the EFE valve.
To install: 5. Position the EFE valve into place.
6. Install the crossover pipe.
7. Install the exhaust pi pe to manifold nuts.
8. Connect the vacuum hose at the EFE.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 571

Fig. 1: Exploded view of a vacuum servo EFE valve assembly
ELECTRICAL TYPE 1. Remove the air cleaner and disconnect the negative battery cable.
2. Tag, then disengage all electrical, vacuum and fuel connections from the
carburetor.
3. Disconnect the EFE heat er electrical lead.
4. Remove the carburetor.
5. Lift off the EFE heater grid.
To install: 6. Position the EFE heater grid onto the manifold.
7. Install the carburetor.
8. Connect the EFE heater electrical lead.