914 fuel/manifold differential pressure.

by Mike Goodrich in 912 / 914 Technical Questions 13 years ago

I've just bought a differential pressure gauge and sender from Aircraft Spruce.
It's made by UMA. (see attached)
What is the best way to pipe this up and where do I get the connectors and hoses from??
I'm sure I've seen a set up with an extra long banjo bolt that allows two connections on the fuel pressure regulator.
Thanks in advance.
Mike G

DPsender.jpg (You do not have access to download this file.)

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Re: 914 fuel/manifold differential pressure.

by Michel Proulx » 13 years ago

Michel Proulx

5 19 0

Mike
have you pipe your fittings , do you have the longer banjo bolt and banjo fitting
if you ad a hose to convert to your 1/8 npt make sure you have your restriction at the banjo fiting (hose end)

regards

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Re: 914 fuel/manifold differential pressure.

by Rob Seaton » 13 years ago

Rob Seaton

3 1.32k 251

Mike,
See attached for the fitting part numbers.
Rob

fuelpressure.pdf (You do not have access to download this file.)

Thank you said by: Mike Goodrich

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Re: 914 fuel/manifold differential pressure.

by Edward Harris » 5 years ago

Edward Harris

0 4 0

Piling on to this thread seven years later. With respect to the attachment that Rob Seaton provided. If I am going to permanently attach a differential pressure sensor to my 914, when it says "attach to crossover tube for permanent installation, that's the same crossover tube that it disconnected when doing a carb sync? I assume it's the little nipple on one side of that tube that is normally plugged? For my own education, is there a reason not to use an airbox port for the dry side of the differential pressure sensor?

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Re: 914 fuel/manifold differential pressure.

by Rob Seaton » 5 years ago

Rob Seaton

3 1.32k 251

yes, attach to the nipple on the crossover tube.
If you use the airbox port you will not see actual MAP until you go over atmospheric pressure, not very helpful at idle and low RPM!

Thank you said by: Edward Harris

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Re: 914 fuel/manifold differential pressure.

by Edward Harris » 5 years ago

Edward Harris

0 4 0

Thanks Rob!

FYI - my recent-ish version of the illustrated parts guide now shows the press-in jet as 963143 ("IDLE JET 35") rather than the 963145 that the diagram attached to this thread specified back in 2012. I'm not sure if it's significant or not but I was planning to go with the newer recommendation, unless you've got information to the contrary.

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914 fuel/manifold differential pressure.

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