This tool is useful in removing master rod caps. (It cannot be used inside the engine).
The master rod is placed in a T16510 Rod Holding Fixture and the jaws of the puller placed around the base of the cap. Removal of the cap is accomplished by sliding the knocker against its stop thus impacting the cap. This tool is also useful in the backshop where main frames are inverted to remove the crankshaft. It will accommodate main bearing cap removal in this situation.