1977 Tecumseh HS50 Crank Bolt Size?

#1
Does anybody know the size and thread for the drilled and threaded hole on the (clutch) end?:confused:I thought that it was 5/16 - fine thread (same as our newer Tec Powersport), however, I just tried it and that bolt is too small?:shrug:
Thank you
 
#3
Epilogue:
(Posted for the benefit of others)
As it turned out, it WAS a 3/8" fine thread- You were exactly correct delray!:thumbsup: I would still like to know if this was the standard for an HS50, instead of the usual 5/16" fine, as I have a "suspicion" that my engine may have originally been a 1" shaft that was lathed and re-keyed down to 3/4".:grind:
 

delray

Well-Known Member
#5
i got couple 5hp-hs 3/4 shaft motors with 3/8:thumbsup: i say standard thing:shrug: they did come of snowblowers if make any differents:shrug:and they are late 70's to early 80's engines
 
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