Are the 600 crank pins welded?

[snopromod]

Not talking about long rod motor, I have a 13 pro rmk and was curious if crank pins are welded or just press fit? Thanks for any help!

 

[mountainhorse]

They are press fit with 50 tons of force.

Welding has certain special-application uses... but is not needed in 99% of the engines out there.

Welding is handy when a crank is no longer "tight" fitting with the press and needs extra help.




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[snopromod]

Thanks mountain horse, had a belt break at about 8200rpm and was concerned when it stopped abruptly that the crank may have a chance of spinning? Prolly silly but just curious

 

[Reg2view]

If concerned, you could check crank phasing with a degree wheel and dial indicator. The 800 doos were famous of being out of phase a couple of degrees from the factory. Can be the key difference between a hot stocker and a below average performer.