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A fellow racer has a 4.5" bore x 4.25" stroke, Crower crank large short snout, BME 426 rods, A460 block, blown alky BBF that had a thrust bearing failure. Estimated HP was 1600+. Using a slipper clutch. What could cause the thrust bearing to fail ? Improper crank end play ? Something to do with the clutch assembly ? Looks as though the crank could be toast as the thrust surfaces are quite bad. Any experiences or ideas on why this could happen ? This is just for my own knowledge as the racer has already built another engine(BBC) and moved on and is not really interested to know why this happened.
Thanks Mark
Thanks Mark