Thread size for "out" on Rotax (fine) fuel filter?

by james porter in 912iS Technical Questions 8 years ago

I am installing the fuel system on a 912iS. The Rotax "fine" fuel filter that came with the engine has a 1/4" pipe thread fitting on the "IN" but the "OUT" fitting size is a mystery. It is somewhat smaller in diameter than the "IN". The diameter measured by a caliper is approx. .42".
Does anyone know what size this is? Is it a metric size? If so does anyone know the source of a compatible fitting to use?
Thanks.

Re: Thread size for "out" on Rotax (fine) fuel filter?

by james porter » 8 years ago

james porter

14 78 70

I think I found some data.
The fitting sizes are M12 on one end and M14 on the other.
Unless there are different thread sizes for the U.S.

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Re: Thread size for "out" on Rotax (fine) fuel filter?

by geoffrey klestadt » 8 years ago

geoffrey klestadt

27 94 94

correct.

Thank you said by: james porter

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Re: Thread size for "out" on Rotax (fine) fuel filter?

by Richard Boslaugh » 8 years ago

Richard Boslaugh

9 122 84

In reference to the new Rotax Fine Filter manufactured by Kayser (Germany) with my Kitfox install instructions call for a AN-6 to 14mm x 1.5 at the input and AN-6 to 12mm x 1.5 at the output.

Thank you said by: james porter

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Re: Thread size for "out" on Rotax (fine) fuel filter?

by Gary Slatt » 6 years ago

Gary Slatt

1 6 16

Can anyone help with the torque requirements for the metric side of the adapter fittings?

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Thread size for "out" on Rotax (fine) fuel filter?

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