calculating a unknown variable

spazz

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Aug 12, 2018
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Sorry if this posted in the wrong forum. I have a math problem that I would like to solve for an engine that I am rebuilding

I have installed a thrust bearing that is 1.976mm thick. This should produce 0.12mm of play in the crankset, however I am only getting 0.02mm.
So I need to grind down the bearing to "X" thickness to achieve the desirable 0.12m of play

Is my math correct?

(0.12-0.02)/0.12 = 0.83333
=> 1.976mm *0.83333 = 1.646mm

So, if the bearing is ground down to a thickness of 1.646mm I should get my 0.12mm of endplay

Thanks for your time
 
Sorry if this posted in the wrong forum. I have a math problem that I would like to solve for an engine that I am rebuilding

I have installed a thrust bearing that is 1.976mm thick. This should produce 0.12mm of play in the crankset, however I am only getting 0.02mm.
So I need to grind down the bearing to "X" thickness to achieve the desirable 0.12m of play

Is my math correct?

(0.12-0.02)/0.12 = 0.83333
=> 1.976mm *0.83333 = 1.646mm

So, if the bearing is ground down to a thickness of 1.646mm I should get my 0.12mm of endplay

Thanks for your time

What would be the point of calculating a KNOWN variable?

Are you SURE your GRINDING has a linear relationship with PLAY?

Persaonlly, I'd grind down 0.02 and PROVE the relationshiop. You can't grind it bigger if you overshoot.
 
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