I'm having to determine if by assembling all the original compensator sprocket assembly the crank nut bottoms out
onto the crank snout as the Ultima crank is about a 1/2" longer. I can torque to 80-90lbs but that's it. I have put putty inside
the nut and definitely is pressed. I installed the Ultima motor in the 72 FLH and started a few times and I had marked the cup
and the compensator nut, removed the primary cover and though the nut stayed at torque the mark on the cup moved. Will I be
OK locktighting and go on and recheck later after a few miles?


Crank in a 1/2" from extension face as original shovelhead in what an inch?

 

Midwest Company says the 74 and later shovelheads crankshaft were made longer so I ended up having to space out evenly the compensator assembly because the crankshaft would bottom out inside the nut. I did line up the primary set. I don't have a lot of experience with motorcycles, none on Harleys so this is treacherous waters to me. I have started it few times seems okay. I reused the bendix carb and got the adjustable main jet which I didn't have to tap actually the adjustable main jet threads are slightly smaller than the original on top of the carburetor.