11
11-21
• When the No. 1 or No. 6 piston is at the TDC position of its com-
pression stroke, measure Powertard clearance for the valve
marked
O in the following table.
• For proper measurement, some resistance must be felt when in-
serting the
in the clearance.
• Accurate measurements cannot be expected if the gauge moves
loosely in the clearance.
• If any measurement is out of specification, make adjustment as
follows.
[Adjustment]
• To adjust Powertard clearance, loosen the lock nut, then tighten
the adjusting screw until the moves somewhat stiffly in the
gap.
• Holding the adjusting screw in that position with a screwdriver,
tighten the lock nut to lock the adjusting screw. Recheck the
Powertard clearance using the .
Cylinder No.
Powertard
clearance measuring point
123456
No. 1 piston at TDC of compression
stroke
OOO
No. 6 piston at TDC of compression
stroke
OOO
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