I think I'm missing a nut.

Swinger 340 said
I was waiting for someone to call it a bolt. LOL I'm not familiar with a 225 or any other 6 banger but what keeps the balancer from flying off without the bolt? I would think you would need the bolt to install it but why then would you remove the bolt afterward?
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The balancer is a press-fit. You have to push it on using a long bolt or a piece of all-thread with a couple of nuts on it. The bolt is handy for spinning the engine over but otherwise serves no purpose.