Today's Message Index:
----------------------
1. 06:33 AM - erratic oil temperature indication (Markus Feyerabend)
2. 06:52 AM - Re: LycomingEngines-List: erratic oil temperature indication (Carl Froehlich)
3. 07:55 AM - Re: erratic oil temperature indication (Jeff)
Message 1
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| Subject: | erratic oil temperature indication |
Hello all,
I recently noticed that the oil temp reading in our Extra became erratic and the
indication is jumping between about 160F and 200F.
The high value seems to be at around the level I expect, while the low level is
certainly too low. The needle in the temp gauge (Westach twin indicator for oil
pressure and temp) is not moving slowly but jumping quite fast back and forth.
It seemed to be ok when I warmed up the oil on the ground before an oil-change,
but in flight (with higher oil temps) the problem came back.
Has anyone seen something like this before and can give some recommendations to
what we should look at? Im suspecting the temp probe right now, but as the plane
is more then an hour away from my home, Id rather get as much suggestions
from anyone experienced, before getting lost an endless "trial and error" hunt
, chasing the issue.
Thanks,
Markus
Message 2
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| Subject: | Re: LycomingEngines-List: erratic oil temperature indication |
Probe. If you have a connector in line with the probe you might get lucky and
find that is the problem - for that matter look over the probe wire itself to
see if it has chaffed or otherwise damaged.
Carl
> On Jul 20, 2015, at 8:32 AM, Markus Feyerabend <feyerabm@web.de> wrote:
>
> --> LycomingEngines-List message posted by: "Markus Feyerabend" <feyerabm@web.de>
>
> Hello all,
>
> I recently noticed that the oil temp reading in our Extra became erratic and
the indication is jumping between about 160F and 200F.
> The high value seems to be at around the level I expect, while the low level
is certainly too low. The needle in the temp gauge (Westach twin indicator for
oil pressure and temp) is not moving slowly but jumping quite fast back and forth.
> It seemed to be ok when I warmed up the oil on the ground before an oil-change,
but in flight (with higher oil temps) the problem came back.
>
> Has anyone seen something like this before and can give some recommendations
to what we should look at? Im suspecting the temp probe right now, but as the
plane is more then an hour away from my home, Id rather get as much suggestions
from anyone experienced, before getting lost an endless "trial and error" hunt
, chasing the issue.
>
> Thanks,
> Markus
>
>
>
>
>
>
Message 3
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| Subject: | Re: erratic oil temperature indication |
Hi Markus,
The only time I've seen that before is when I've had a bad sender or loose connection.
Typically temps are the slowest moving of any sensor.
Jeff
Sent from my iPad
> On Jul 20, 2015, at 7:32 AM, Markus Feyerabend <feyerabm@web.de> wrote:
>
>
> Hello all,
>
> I recently noticed that the oil temp reading in our Extra became erratic and
the indication is jumping between about 160F and 200F.
> The high value seems to be at around the level I expect, while the low level
is certainly too low. The needle in the temp gauge (Westach twin indicator for
oil pressure and temp) is not moving slowly but jumping quite fast back and forth.
> It seemed to be ok when I warmed up the oil on the ground before an oil-change,
but in flight (with higher oil temps) the problem came back.
>
> Has anyone seen something like this before and can give some recommendations
to what we should look at? Im suspecting the temp probe right now, but as the
plane is more then an hour away from my home, Id rather get as much suggestions
from anyone experienced, before getting lost an endless "trial and error" hunt
, chasing the issue.
>
> Thanks,
> Markus
>
>
>
>
>
>
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