Measuring fuel pressure from clamp block

by Tom Delaney in 912 / 914 Technical Questions 11 years ago

I have a mechanical gauge and hose with NPT threads and I am looking for ideas/source for adapting to the metric threads found in the clamp block on the cross-over tube.

I would appreciate your help.

Thanks,

Tom

RV12

Re: Measuring fuel pressure from clamp block

by Roger Lee » 11 years ago

Roger Lee

129 5.31k 5.12k

M10 is basically 3/8" NPT
See the chart. You can buy if you would like an M10 male to NPT on Ebay.

http://www.trfastenings.com/pages/Thread+Conversion+Tables

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

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Re: Measuring fuel pressure from clamp block

by Tom Delaney » 11 years ago

Tom Delaney

10 14 20

Thanks Roger!

The chart did the trick for me. I wasn't aware that 1/8 NPT has an o.d. of .405. Always learning :)

Tom

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Re: Measuring fuel pressure from clamp block

by Rob Seaton » 11 years ago

Rob Seaton

3 1.32k 251

Just a note that Rotax and Diamond allow the use of 1/8NPT sensor into the fuel manifold M10 threads.
This is better than using an adaptor that introduces another failure point and more weight/arm=moment.
This has been confirmed by engineering.

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Measuring fuel pressure from clamp block

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