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HelicopterRadio - Spektrum DSM › will the spektrum crankcase governor sensor fit on​the OS 91HZ-PS or 91 SZH-PS?
03-20-2009 09:53 PM  8 years agoPost 1
APOPHIS

rrApprentice

New York - USA &​Manchester UK

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Looking for a new Governor/Rx and thinking about a new Rx/Governor and looking at the Spektrum AR7100R and wondered if the Governor Crankcase sensor will fit on an OS 91 HZ-PS / OS 91 SZH-PS.

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03-20-2009 10:42 PM  8 years agoPost 2
xxcysxx

rrKey Veteran

Baltimore, MD - USA

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Probably not. The pump took up the entire estate of the back plate. The backplate heatsink on the hz will probably have to come off too.
You could get a regular, non pump carb, and do a kline mod and use crank case pressure. That should be better than the os fuel pump and regulator. Then you can use the backplate sensor.

Tam

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03-23-2009 10:23 AM  8 years agoPost 3
Stolla

rrKey Veteran

Port elizabeth South​Africa

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I use one on the szh/ps, just a little filing on the plastic casing and enlargement of the slotted portion then it fits

Common sense may not be common after all

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03-23-2009 03:09 PM  8 years agoPost 4
cation3

rrApprentice

Smyrna, GA - USA

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The sensor works fine on an OS91HZ-PS. No modifications needed. Mount it underneath the pump. If you need to, replace the pump-to-backplate fuel tubing with a longer one. My OS stock fuel tubing fit fine.

On the other corners of the CF pump mount I placed my remote glow adapter and on the other corner two, 1mm washers to balance the mount properly.

See photo.

-Drew

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03-25-2009 06:59 AM  8 years agoPost 5
Daved Gutierrez

rrVeteran

Chicago, IL

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where did you guys buy the sensor from?

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HelicopterRadio - Spektrum DSM › will the spektrum crankcase governor sensor fit on​the OS 91HZ-PS or 91 SZH-PS?
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