My Harley service manual says the engine sprocket on my 76 bagger should be torqued to 400 ft lbs. The nut is about 1/4" thick. Are they completely out of their minds? Is this right?

Thanks,
Doug

 

got to be inch pounds ok

 

It's a big nut. The head is 1-1/2", its not very thick so you socket doesn't get much nut to bite on. I’m sure 400 inch pounds would not be enough torque ..... 400 foot pounds just seems a bit ridiculous.

Doug

 

I can't imagine anything on a HD having 400 lbs of torque, and inch lbs on the engine sproket seems low. Send a PM to Shovelhead Bob. I'm sure he can get you on the right track.

Regards,

Bill

 

torque on the crankpin is typically in the area of 450 ft/lb

 

Here is the page out of the book. The values are in ft. lbs. unless noted otherwise.