I am trying to figure out how to remove the crank hub on a Scat crank. It is not stock. It does not have a crank hub bolt. I have removed the damper, looked inside of the center of the hub and there is no bolt and it looks like one piece so a puller will not work. Is it threaded on? If it is what kind of tool is used to remove it?

 

Never seen one without a bolt. Pics please.

 

never heard of one threaded on, must be pressed on like the stocker

 

This is making me feel real stupid. I had never heard of one without a bolt either. I hate it when a 5 minute job turns into a whole week. I will get some pictures when JakeRobb comes over today.

It looks like an ATI hub which makes sense becuase it is a Procharger motor.

 

Should be pressed on, may or may not be keyed.
A 3-jaw puller should work. You don't happen to have a pic do you?

 

I always use a 4" brake caliper bolt. It is flat on the end and the allen head fits a puller nose fine, fits inside where the bolt normally goes and sticks out far enough to get leverage so the puller can pull it right off.

 

I think that might do it! I was about to use a slide hammer for a rear axle, but really did not like the idea. The hub is a really nice billet piece but is a real pain to deal with. Will be for sale soon.

 

Here is how I pulled mine off. You need to use a 7/16 threaded rod to push against. I have unthreaded the crank bolt before and used that to push against but most advise against it so you don't screw up the threads. This picture was taken for someone else after I already assembled mine so that is why the crank bolt is tightened.