Internal threads on CAT piston?

offalot · Jul 21, 2016

My buddy gave me a print he has to draw for a Solidworks class. Upon looking at it, I noticed 4 1/4-20 holes tapped into a shelf in the piston. For the life of me, I couldn't figure out what these are for. Anyone have any ideas? [/img]

Steve@Advance · Jul 21, 2016

My guess would be to hold it on to a machining fixture for a second operation.

gcnoyes63 · Jul 21, 2016

(quoted from post at 11:56:22 07/21/16) My buddy gave me a print he has to draw for a Solidworks class. Upon looking at it, I noticed 4 1/4-20 holes tapped into a shelf in the piston. For the life of me, I couldn't figure out what these are for. Anyone have any ideas? [/img]

They are there to attach a tool to aid in removing the piston.

gcnoyes63 · Jul 21, 2016

Forgot to put piston installation or removal. Wouldn't let me edit.

Steve in IL · Jul 21, 2016

Assuming engine piston. Top or bottom?

Internal threads on CAT piston?

offalot

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Steve@Advance

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gcnoyes63

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gcnoyes63

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Steve in IL

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