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Title: Engine case torque specs?
Post by: SRG on January 15, 2020, 01:08:53 AM

I'm having a difficult time finding torque specs for the case bolts on my panhead engine. One friend said 50 ft lbs, but that's really putting the squeeze on. I'm looking in five books, and I still can't find the specs.

Title: Re: Engine case torque specs?
Post by: Buglet on January 15, 2020, 05:33:20 AM

Should be between 15 - 17 ft lbs.

Title: Re: Engine case torque specs?
Post by: rigidthumper on January 15, 2020, 11:03:18 AM

Rule of thumb an old timer shared with me 50 years ago-7-9 foot pounds for 1/4, 17-19 for 5/16, 27-29 for 3/8, etc- add 10 pounds for each 1/8" increase in bolt diameter.

Title: Re: Engine case torque specs?
Post by: SRG on January 16, 2020, 01:21:05 AM

Thanks guys. 17 ft.lbs. it will be. Good info on torques for different bolt sizes.

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Technical Forums => Pan Head => Topic started by: SRG on January 15, 2020, 01:08:53 AM