So i bought a used crank with 23k on it from a member here on s2ki and he said it was in perfect condition. Of course i jumped on it and he assured me that if it was bad i could return it.... anyways i just got a call from my mechanic that said that to the eye it looks perfect, but when he measured it it was off by barely .0001s. Thousandths he said and when he spun it it kinda made the thing measuring it jump and move a bit. He said it could have been the way it was shipped, stored, or taken apart.

He said that there might be vibration when he puts the motor back together, but there's also a possibility that there wouldn't be any issues at all. What do you guys think?? should i not put it in or should i just go out and buy a new motor.... already spent around 1000 bucks on the rebuild not to mention the cost of labor....

 

One thousandth or one ten-thousandth?

 

Ten thousandths lol he said when he measured it and used his tool he could see it would cAuse some vibration but when he would torque everything down again it might be normal again

 

One-tenth of a thousandth, one thousandth, or 10 one-thousandths? The difference does matter.

 

He used a V-block and a dial indicator to measure run-out. We just need to know how much.

 

Just texted him and he said hes gonna getthe exact measurement for u guys tomorrow. But he said if it were his car he would get a new crank or dish out the money for a used f22

 

What if you knife it, rebalance and then use it

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I was thinking about getting it rebalanced at a machine shop

 

If he is recommending you a new crank,then I would imaging he meant ten thousandths. ( .010") . I wouldn't even try to use a crank in that condition either. Sounds like either it is bent or the journals might have been ground improperly....im betting on a bent crank. You might be able to get it bent back,but with the hassle of it,I would just get yur money back and get another one.

 

Lol that's hundredths... .0001 is ten thousandths... But yeah not sure gonna get it machined if I can but might have to get oversized bearings then