Today's Message Index:
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1. 03:11 AM - Re: Erratic oil Pressure in 912 (Eric Tiethoff (HCCNet))
2. 04:56 AM - Re: Erratic oil Pressure in 912 (Catz631@aol.com)
3. 07:32 PM - Re: Erratic oil Pressure in 912 (iweshuff)
Message 1
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| Subject: | Re: Erratic oil Pressure in 912 |
Try another sender module.
--------------------------------------------------
From: "peteohms" <apeterchristensen@sbcglobal.net>
Sent: Monday, February 09, 2009 12:31 AM
Subject: RotaxEngines-List: Erratic oil Pressure in 912
> <apeterchristensen@sbcglobal.net>
>
> Lately I have been experiencing erratic oil pressure in my 912. Upon
> startup I get instant oil pressure as normal. After warm up and takeoff I
> fly for awhile and sometimes my oil pressure dips down to 20 briefly and
> goes back up to 40. This may happen several times but usually not when the
> engine is good and hot say 200f degrees. I'm using 20W50 Honda oil. I know
> that's a bit thick for winter but it averages 60f degrees around here. Any
> ideas?
> __________________
> Pete
> Hell Paso, TX
> Model III SN 1000 (about 6th owner)
> 912
> Grove
>
> --------
> Pete
> Hell Paso, TX
> Kitfox III, 912ul, Grove
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=229261#229261
>
>
>
Message 2
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| Subject: | Re: Erratic oil Pressure in 912 |
Pete,
I too have had that problem with my oil pressure indication moving up and
down. It was reading about 45 in cruise then would drop,etc. I have the Westach
quad gauge. I ordered a new sending unit. I then checked the reading on the
old sending unit by putting air pressure to it. I checked this reading with the
reading from a known Triumph TR3 pressure gauge which was brand new and had
been checked with several other gauges so I knew it was spot on as far as
pressure accuracy. The old Westburg sending unit was reading about 15 lbs too low.
The new one agreed with my TR3 gauge.I replaced the sending unit and now I am
having an accurate reading (at least I think)
Every now and then I will get movement in the needle as you describe but
generally it is very steady now. If yours is a Westburg provided unit they have
had a dubious history according to some of our members.I think I would check
the grounding or the sending unit first. When I went to Rotax school at
Lockwood,Dean brought up the grounding problem with the sending unit right away.
It is
very common (like breaks in the electrical wiring)
Dick Maddux
Kitfox 4-1200
Rotax 912UL
Pensacola,Fl
PS: By the way Pete,It's been nice to not have to put a block of ice on the
engine to keep the engine cool for start. But that time of year is coming !
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AOL Music.
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Message 3
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| Subject: | Re: Erratic oil Pressure in 912 |
I was having the same trouble on my Eurofox when it was just 6 months old. One
of the connections had already started to corrode. A little sandpaper and it
has worked fine ever since then.
Wes
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=229481#229481
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