Christini AWD 450, Service Manual

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Page 24
Maintenance
DECOMPRESSOR CLEARANCE INSPECTION / ADJUS TMENT: DECOMPRESSOR CLEARANCE INSPECTION / ADJUS TMENT: DECOMPRESSOR CLEARANCE INSPECTION / ADJUS TMENT: DECOMPRESSOR CLEARANCE INSPECTION / ADJUS TMENT:
•
Inspect and adjust the decompressor clearance while the engine is cold
(below 35
0
C/95
0
F)
•
Remove the crankshaft hole cap.
•
Turn the crankshaft clockwise to align the punch mark with the index
mark on the right crankcase cover.
•
Make sure that the piston is at Top Dead Center on the compression
stroke.
•
Measure the decompressor arm clearance by inserting a feeler gauge
between the decompressor arm adjusting screw and right side rocker arm.
DECOMPRESSOR CLEARANCE:
DECOMPRESSOR CLEARANCE: DECOMPRESSOR CLEARANCE:
DECOMPRESSOR CLEARANCE:
RIGHT SIDE EXHAUS T VALVE CL 0.15mm RIGHT SIDE EXHAUS T VALVE CL 0.15mm RIGHT SIDE EXHAUS T VALVE CL 0.15mm RIGHT SIDE EXHAUS T VALVE CL 0.15mm
EXAMPLE:
EXAMPLE: EXAMPLE:
EXAMPLE:
If measured right exhaust valve clearance is 0.28mm,
decompressor clearance is :0.28mm +0.15mm =0.43mm
If decompressor clearance needs adjustment, see following procedure.
•
Measure the right exhaust valve clearance by inserting a feeler gauge
between the right side rocker arm and shim.
VALVE CLEARANCE: VALVE CLEARANCE: VALVE CLEARANCE: VALVE CLEARANCE:
EX:0.28mm±0.03mm
•
Pull out the feeler gauge between the rocker arm and shim
•
Insert the feeler gauge (right exhaust valve cle0.15mm between
the adjusting screw and right side rocker arm.
•
Loosen the lock nut and turn the adjusting screw until there is a slight
drag on the feeler gauge.
•
Hold the adjusting screw and tighten the lock nut.
TORQUE : 10N.M TORQUE : 10N.M TORQUE : 10N.M TORQUE : 10N.M
•
Recheck the decompressor clearance.
•
Reinstall the cylinder head and the cap.