What's thread size is the prop screw?

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09-20-2004, 07:34 PM

Scar

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What's thread size is the prop screw?

Norvel .074, trying to use a spinner, need a longer prop screw. The engine pamphlet doesn't state the thread size, nor does the Norvel website.

Anybody?

Thanks,
Dave Olson

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09-20-2004, 08:05 PM

SST

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RE: What's thread size is the prop screw?

I think it's 4mm, and the .049-.061 is 3mm.

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09-21-2004, 07:02 AM

Scar

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RE: What's thread size is the prop screw?

Yup, I got it measured. The .074 Norvel prop screw is M4 X 0.7 threads. The one that came with it is about 26mm long, and with a spinner backplate in there, I'll need one about 30 mm long.

Thanks,
Dave Olson

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