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John W.
09-29-2002 22:10:13
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Re: AC engine D-17 or ? in reply to mike, 09-29-2002 20:23:57
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Mike; O.K., The problem is, it is either a D-17 or it's not. The statement supposed to be the same as, is very misleading. 15,17,and early 21's shared a common block. The difference is in the bore and stroke, 15's being the smaller and 21's the larger of this group. Clean the accumulated grease, dirt, and gunk from the engine, there are numbers stamped into the blocks that identify what model it is. You could have a tractor engine or you may have one of the engines built for pumps and other STATIONARY equiptment. The later while being the same horse power as it's tractor brother, will not always fit, due to dementional differences on the fly wheel end where it mounts to a bell housing or pump, genarator, etc. Allis- Chalmers built a huge number of engines for uses in cotton gins, thrashers, combine aux., drives. The list is impressive. If it turns out to be a stationary engine, measure the mounting bolt spread and crank shaft center line in relation to your D-17 they could, quite possibly, be the same engine wearing different model and usage #'s. Who knows you could get a bonus of an engine with the larger bore and stroke of a D-21, It would add some more power, and more importantly get another Allis out of the weeds and into a job, B#ST#RD or not. Good Luck, John W.
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