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0.01mm or 0.001mm Micrometer?

Engine Building Fundamentals

Relevant Module: Tools of the Trade > Micrometer

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Discussion and questions related to the course Engine Building Fundamentals

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Hi,

I'm in the process of rebuilding a 7 bolt 4g63. It was with an engine builder and was pulled away after 2 years of waiting. The machine work was done by an unknown machinist.

Before joining HPA I purchased all the tools required, although it seems they're aren't as accurate as the tools listed in the course videos. Is 0.01mm tools accurate enough to continue the build for both micrometers and the dial bore indicator?

I was hoping to share my recordings soon to verify what bearings I can use.

So far my piston bores TOP, CENTRE & BOTTOM range between 0.02mm, which is concerning if I do need to measure in the hundredths.

My rod journal's between 0.01mm

And main journals between 0.03mm

If I must repurchase micrometers I'll make sure they have thinner end this time for better measurements.

Thanks in advance for any help.

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