Quote:
Originally Posted by Smitty
Herm,
I will give the air hammer method a try again, last time even though pressure was set low I was unable to remove hammer marks in the Babbitt even after machining. When doing the thrust surfaces on the cap do you put a plate between the hammer and surface or hit directly on the thrust?
Steve
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Nothing between the punch, and the Babbitt.
Use a 45 degree angle, away from the bearing.
The punch for the air drill, is 1/2 inch diameter, round, a smooth, rounded end.
40 pounds pressure, and DON"T, push to hard. If you don't have enough babbitt thickness, it might be a problem. We have enough babbitt thickness to set a .050 thousandths crank.