Today's Message Index:
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1. 12:12 PM - Oil thermostatic by pass valves. (Walt Murphy)
2. 01:30 PM - Re: Oil thermostatic by pass valves. (Gene Smith)
Message 1
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| Subject: | Oil thermostatic by pass valves. |
Question:
Does anyone know just exactly how far the vern a therm ( by pass valve )
is supposed to stretch when at temperature?
We have an oil temp problem and the by pass valve was replaced. ( ECI
PMA replacement part ) . It did not solve the problem. Looking at the
NEW part there was NO wear mark at all on the seating face of the valve.
Placing it into a cup of boiling water it grew 0.107 from the ambient
length. I also measured another ( old Lycoming part ) it grew 0.180
Also when I look at the ECI part in the oil filter adapter housing , it
sits deeper than the Lycoming part. ( It appears that the ECI part would
need to "grow" over 1/4 inch to make contact compared to maybe 1/16 to
1/8 inch on the Lycoming part.
Thanks,
Walt
Message 2
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| Subject: | Re: Oil thermostatic by pass valves. |
Walt...................Lycoming Engines, 652 Oliver St., Williamsport, Pa.
17701.........570-323-6181..........Ask for "SUPPORT CENTER." 0800-1700
EDT, Mon-Fri...I'm sure the engineers will have an answer for
you.....................................www.lycoming.textron.com/index.jsp
CHEERS!!!! and good luck.............Gene Smith.
----- Original Message -----
From: "Walt Murphy" <waltmurphy@charter.net>
Sent: Sunday, August 05, 2007 2:09 PM
Subject: Engines-List: Oil thermostatic by pass valves.
>
> Question:
>
> Does anyone know just exactly how far the vern a therm ( by pass valve )
> is supposed to stretch when at temperature?
>
> We have an oil temp problem and the by pass valve was replaced. ( ECI
> PMA replacement part ) . It did not solve the problem. Looking at the
> NEW part there was NO wear mark at all on the seating face of the valve.
> Placing it into a cup of boiling water it grew 0.107 from the ambient
> length. I also measured another ( old Lycoming part ) it grew 0.180
>
> Also when I look at the ECI part in the oil filter adapter housing , it
> sits deeper than the Lycoming part. ( It appears that the ECI part would
> need to "grow" over 1/4 inch to make contact compared to maybe 1/16 to
> 1/8 inch on the Lycoming part.
>
> Thanks,
> Walt
>
>
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