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Cylinder No.1 at compression TDC
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Cylinder No.4 at compression TDC
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VALVE CLEARANCE INSPECTION AND
ADJUSTMENT
1. Warm up the engine.
Standard: coolant temperature 75 to 85 OC
(167 to 185 OF)
2. Check the valve clearance.
(1) Set cylinder No.1 to the TDC.
Align the TDC notch mark on the crank pulley with the
timing pointer.
Note:
Position so that the following marks abc are in alignment
when viewed from the top of the protrusion for position
alignment on the timing gear cover side
(a)
TDC mark on the crank pulley
(b) Timing pointer
(c) End groove of the protrusion for position
alignment on the timing gear cover side
(2) Measure the valve clearance as shown.
Standard: IN: 0.18 to 0.22 mm (0.0071 to 0.0087 in.)
(hot engine)
EX: 0.33 to 0.37 mm (0.0.130 to 0.0146 in.)
(hot engine)
(3) Turn the crankshaft in the forward direction to set
cylinder No.4 to the TDC.
(4)
Measure the valve clearance of the remaining valves.
3. Adjust the valve clearance.
(1) Loosen the lock nut and turn the adjusting screw for
adjustment.
Standard:
IN:
0.18 to 0.22 mm (0.0071 to 0.0087 in.)
(hot engine)
EX: 0.33 to 0.37 mm (0.0130 to 0.0146 in.)
(hot engine)
(2) Tighten the lock nut and recheck the valve clearance.
IDLING SPEED INSPECTION AND
ADJUSTMENT
1. Warm up the engine.
Standard: coolant temperature 75 to 85 OC (167 to
I85 OF)
2. Attach the tachometer.
3.
Check the idling speed.
(1) Check that the accelerator wire returns and make
sure that the adjusting screw of the injection pump is
touching the accelerator lever.
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