Today's Message Index:
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1. 02:11 AM - Re: Re: High Oil Pressure (David Joyce)
2. 04:30 AM - Re: High Oil Pressure (Malcolm Ferguson)
3. 04:41 AM - Re: Low Oil Pressure....High Oil Pressure (Tommy Walker)
4. 07:02 AM - Re: High Oil Pressure (Roger Lee)
Message 1
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| Subject: | Re: High Oil Pressure |
Roger, Another alternative is that it has a poor connection. If a wire
breaks or becomes disconnected the default reading is very high, as I
discovered once just after take off in the middle of France. Reconnecting it
sorted it. Regards, David Joyce, G-XSDJ
----- Original Message -----
From: "Roger Lee" <ssadiver1@yahoo.com>
Sent: Monday, June 30, 2008 2:53 AM
Subject: RotaxEngines-List: Re: High Oil Pressure
>
> Hi Guys,
>
> I would not think the oil pressure is really at 99psi. You need to check
> this against a mechanical gage which I think will show you your pressure
> is normal. My first thought is the oil pressure sensor wire is too close
> to an energy producing wire. Move your oil pressure sender wire away from
> all energy producing wires.
>
> --------
> Roger Lee
> Tucson, Az.
> Light Sport Repairman - Maintenance Rated
> Rotax Service Center
> 520-574-1080
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=190483#190483
>
>
>
Message 2
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| Subject: | Re: High Oil Pressure |
Has happened to me(wildly varying oil pressure). Replaced the sender unit
but no difference. Finally tracked it down to the wire fractured at the
connector to the sender unit.
The tefzel outer was still intact and gave no indication to the broken wire.
Finally found it by moving the sender wire with the engine running. The wire
was secured better re-crimped, and the original sender has now done 400 hrs.
Rotax mechanic here suggested planes with dynamically balanced props seem to
suffer less of these types of problems.
Others experience maybe quite different.
Malcolm Ferguson
Esqual 912S
Message 3
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| Subject: | Re: Low Oil Pressure....High Oil Pressure |
Thanks folks, I got a mechanical gauge and all the plumbing. I'm going to
hook it up this week and compare pressure readings.
Thanks again,
Tommy Walker in Alabama
N8701
Do Not Archive
Message 4
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| Subject: | Re: High Oil Pressure |
Hi All,
Wires and not the gages are typically notorious for false readings on gages. This
is the first place I always look along with the mechanical gage. Ground's and
power supply's should be the first thing checked. It is usually the easiest
and cheapest.
Note*
I will have to say sometimes finding a bad wire can be like looking for a ghost.
The partial ground that I stated above took me 4 hours to find because the test
meter said there was a ground.
Now I have a few simple quick test. I will bypass the gage ground or power supply
and use a jumper wire for a quick and dirty test. The mechanical gage setup
is so cheap and easy to make everyone should have one in their tools and diagnostic
equipment.
Let us know what you find Tommy. The more experience we all post the easier it
is for the next guy.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=190543#190543
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