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My M936 (FLUFFY) is almost ready to run with it's new Big Cam 3 engine upgrade. NTC350. Thank you to everyone who has posted their comments about their engine swaps. They are very helpful. To repeat other comments about what you can expect. I had to do the following. 1. Front engine mount...

See TM 9-2320-272-24P-1 figure 96. Cummins OEM part number on page 96-1. (146483) This is for the M936 wrecker which has a VS (variable speed) fuel pump versus the AFC fuel pump installed on other NHC 250 engines which is figure 95 and same part number on page 95-1. The VS fuel pump is needed...

My NHC 250 revs up very high when I first start it. It also doesn't shut down right away when ignition shuts off. Some white smoke at various rpms. I am hoping this isn't a valve stem oil seal leak or something like that. I have read other comments on fuel system issues but I have found nothing...

I just registered onto steelsoldiers. What a great website. Everyone here is awesome and helpful. Thanks to all who participate. Now I have to figure out how to add a picture...