1991 MITSUBISHI 3000GT clutch

HEATERS AND MANUAL AIR CONDITIONER - Compressor
DISASSEMBLY AND REASSEMBLY
55-29
M55SE- -16
152OFOO97
Magnetic clutch disassembly steps
1. Bolts
2. Pulley
l * l *3. Nutl *4. Armature plate
gI i;yirring
l *7. Snap ringF* 8. Clutch coil9. ShimsControl valve disassembly
13. Snap ring14. Control valveThermostat and revolution pick up sensor disassem-
bly steps
15. Plate16. Thermostat and revolution pick up sensorHigh pressure relief valve disassembly steps
10. Cover11. Dust cover
12. High pressure relief valveTSB Revision

HEATERS AND MANUAL AIR CONDITIONER - Compressor55-3120N003d
2OFOO96
I
Ec-3
3180?+I! (25)zz
h34\
*
Engine speed rpm2OPO2S
\CrankshaftTapered part
20A0157
REVOLUTION PICK UP SENSOR CHECKMeasure the resistance between terminals
@ and @ of the
connector.
Normal resistance: 405 + 35 R when ambient temperatureis
20°C (68°F)
If the measurement deviates greatly from the above resis-
tance, replace the revolution pick up sensor assembly.
CONTROL VALVE CHECKThe control valve detects a low pressure level during the
operation of the air conditioner, and adjusts the amount of
refrigerant to be bypassed.
(1) Operate the air conditioner under a high temperature loadcondition (when vehicle interior temperature is high).
(2) Connect a low pressure gauge to the air compressor.
(3) Operate the air conditioner with the engine running at idle.
(4) Gradually increase the engine speed while observing the
low pressure gauge.
If the valve is normal, the low pressure drops slowly as the
engine speed increases until a pressure of 180
kPa (25 psi)
is reached, at which point the pressure temporarily ceasesto drop. Then, the pressure again starts dropping as the
engine speed further increases.If the valve is abnormal, the low pressure drops in direct
proportion to the increase in engine speed without a
temporary leveling off at the 180 kPa (25 psi) pressure level.
If the low pressure drops like this, replace the control valve.
SERVICE POINTS OF REASSEMBLYM556HAF
8. INSTALLATION OF CLUTCH COIL
Align the pin of the clutch coil with the pin hole in the fronthousing, and then fit it into the hole.
7. INSTALLATION OF SNAP RING
Install the snap ring so that the tapered surface is at the
outer side.
1 TSB Revision

55-32HEATERS AND MANUAL AIR CONDITIONER - Comrxessor
no spline-
Feeler gauge4. INSTALLATION OF ARMATURE PLATE
Align the mating mark of the crankshaft spline and the
mating mark of the armature plate, and then fit them
together.‘%(J3. INSTALLATION OF NUT(I) Use the special tool to tighten the nut.
(2) Check whether or not the air gap of the clutch is within
the standard value.Standard value: 0.4
- 0.6 mm (.Ol - .02 in.)
NOTE
If there is a deviation of the air gap from the standardvalue, make the necessary adjustment by adjusting the
d 1number of shims.
1 TSB Revision