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Mike Hoffman
Joined: 11 Mar 2006
Posts: 54
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 Posted: Mon Apr 27, 2009 10:25 am Post subject: Wiring 912 ULS oil pressure sensor |
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I have a new 100 hp 912 uls and it came with wiring to the oil pressure switch. The older engines only had one wire and the new engines now have 3 wires (black, white and red). The black is cut off and appears they are only using the Red and White.
The wiring diagrams I have do not show how to wire the new 2 wire set up to the oil pressure gage. I could guess at it but prefer not to. If I had to guess, red would go to the "S" post and the white would be added to the "-" gnd post.
Has anyone else encountered this?
Thanks
Mike H
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dpark748(at)hotmail.co.uk
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| Posted: Mon Apr 27, 2009 11:52 am Post subject: Wiring 912 ULS oil pressure sensor |
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Mike C
Rotax apparently no longer use the old VDO sender and now use a Honeywell sender with red/white/black - not used/shield.
I have bought a UMA 1 1/4" gauge to match sender. White - signal/ Red - 14 volts/ Shield - to ground at the gauge.
Waiting for fuselage coming back from spraying!!!!! to fit!!!!
Regards Dave
[quote] Subject: Wiring 912 ULS oil pressure sensor
From: mhoffman9(at)tampabay.rr.com
Date: Mon C 27 Apr 2009 11:25:04 -0700
To: rotaxengines-list(at)matronics.com
--> RotaxEngines-List message posted by: "Mike Hoffman" <mhoffman9(at)tampabay.rr.com>
I have a new 100 hp 912 uls and it came with wiring to the oil pressure switch. The older engines only had one wire and the new engines now have 3 wires (black C white and red). The black is cut off and appears they are only using the Red and White.
The wiring diagrams I have do not show how to wire the new 2 wire set up to the oil pressure gage. I could guess at it but prefer not to. If I had to guess C red would go to the "S" post and the white would be added to the "-" gnd post.
Has anyone else encountered this?
Thanks
Mike H
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241483#241483
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Mike Hoffman
Joined: 11 Mar 2006
Posts: 54
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| Posted: Tue Apr 28, 2009 1:12 am Post subject: Re: Wiring 912 ULS oil pressure sensor |
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Thanks Dave,
I guess I now need to decide if I should replace the sender with the old VDO style or try and find a gage that matches my others.
Thanks again,
Mike H
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rampil
Joined: 04 May 2007
Posts: 870
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| Posted: Tue Apr 28, 2009 6:52 am Post subject: Re: Wiring 912 ULS oil pressure sensor |
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Hi Mike,
Be careful of the desire to have style replace safety.
The old VDO sender was a dog which is why it was switched, big
mass on a moment arm, none too accurate either.
Best of luck with the gauge
Ira
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Mike Hoffman
Joined: 11 Mar 2006
Posts: 54
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| Posted: Wed Apr 29, 2009 3:02 am Post subject: Re: Wiring 912 ULS oil pressure sensor |
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Thanks Ira, I ordered a new sender for now. Ill change it out later when I find a gage that works out. I didn't realize the old gage was a problem.
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K Dilks
Joined: 22 Sep 2008
Posts: 108
Location: UK
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| Posted: Wed Apr 29, 2009 11:00 pm Post subject: Re: Wiring 912 ULS oil pressure sensor |
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Honey well sensor does not work on the VDO gauge.
Get the Road electronic gauge Rotax part number 956413.
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| Description: |
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Download |
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956413 Oeldruckgeber technische Spezifikationen.pdf |
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189.75 KB |
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747 Time(s) |
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Mike Hoffman
Joined: 11 Mar 2006
Posts: 54
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| Posted: Thu Apr 30, 2009 1:38 am Post subject: Re: Wiring 912 ULS oil pressure sensor |
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K Dilks, Thanks for the part number.
Mike H
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