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Quote:
Originally Posted by 40 Deluxe
The topic of thrust surfaces and original Ford Babbitt reminds me of reading up on Model A powered Pietenpol airplanes. In his instructions for converting the A to aircraft use, Mr. Pietenpol himself said that the stock thrust surface worked fine. Think of that! All the propeller thrust is taken by the that thin ring of Babbitt, and it is a continuous load, not intermittent like a clutch is.
I have seen drawings by someone else that show a special bell housing with a radial bearing to take the thrust, as well as how to drill the crankshaft for pressure oiling to the rods. Do drilled A cranks break often? Ah well, in those days there were plenty of pastures to set her down when/if something broke!
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I for one would not know, but I would think it wouldn't be any different then what would be used in a car ?????????
Herm.