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pushrod question 140-160

posted by  walrus3 on  Wed Nov 3 03:47 CST 2004
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last visit: Mon Dec 2 14:20 CST 2013
[RELATED]

Look in your manual under Valve Clearance Adjustment
In the 1972 140 series manual it is on page 2:12 for initial setup and
0:5 for final adjustment - 0.016 - 0.018" for B20A, E and F, and 0.022 - 0.024"
for B20B.
I prefer to err on the side of larger clearance due to the possibility of
the valve not closing tightly enough and losing its valve-seat cooling.
I burned a bunch of B30 exhaust valves when set at 0.018" in a long drive
across the desert. They even had several cracks in each valve face.





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