1958 10HP RUDE SHEARED KEY Help

[kodibass]

I got this fine motor horse trading, well the guy said it had not run in years. upon inspection under the flywheel I found a sheared key and a cracked cam, so I found a used key and ordered a cam and the motor ran fine after a tune up & new coils. well went to start it and the plastic paw on the recoil starter flew out, so I new something was not right, pulled the flywheel to find the key sheared again, so I dug around and found a key in its original package (p/n 120395). can some one confirm this to be the correct flywheel key for this motor mod#181025-E05541 I may have put the wrong key in or not tightened the flywheel nut to proper toque, or something else ?? might be going on. thanks

 

[oldcatamount]

Re: 1958 10HP RUDE SHEARED KEY Help

120395 appears to be the correct key. I'm not positive on the torque value. Probably 40 ft. lbs. (or so).

 

[F_R]

Re: 1958 10HP RUDE SHEARED KEY Help

Flywheel and crankshaft tapers and keyways must be undamaged, clean and dry. Then tighten nut to 40-45 foot pounds. If any of these conditions is wrong, it will keep on shearing keys, and every time it does, it will damage it a bit more.

Yes, that is the correct key.

 

[kodibass]

Re: 1958 10HP RUDE SHEARED KEY Help

Thanks' I will clean and inspect all the surfaces this time around and pay xtra attention to the assembly.