Today's Message Index:
----------------------
1. 10:11 AM - Oil temps (greg.barnhard@gmail.com)
2. 02:21 PM - Re: Oil temps (Anthony Savarese)
3. 03:44 PM - Re: Oil temps (Brian Macey)
4. 04:21 PM - Re: Oil temps (l129bs@gmail.com)
5. 04:43 PM - Re: Oil temps (greg.barnhard@gmail.com)
6. 05:21 PM - Re: Re: Oil temps (Anthony Savarese)
7. 06:45 PM - Re: Oil temps (greg.barnhard@gmail.com)
Message 1
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Heres one Im trying to wrap my head around.
In the past, on my Yak 52W, my oil temps always seemed normal. They would take
a little bit of time to warm up but I could easily control them and keep them
in the middle of the green arc (oil in temp). In the summer I could run without
a blocker plate and then as it got progressively colder I would use different
blocker plates with different levels of blockage on the oil cooler face. No
problems keeping it at least 120 no matter how cold it got (New Yorker here).
Fast forward, I did a top overhaul on my engine and replaced all of the flexible
lines on the airplane, and no matter what Im lucky if I can keep the oil temps
in the green. Even on a 60-70F day I would have to use a full blocker plate
on the cooler to get the oil temp up. I could get it warm for a Runup to about
110F. On takeoff with full power the oil temps would plummet down to 90F or
lower. They wouldnt start to come up until I close the cowl shutters a bit then
I could get them to 110-120F. If I didnt use a blocker plate the oil temps would
be anywhere from 90-100F the entire flight.
I know that Im lucky that the temps arent too high but low oil temps are concerning
to me. In the winter time Im lucky to have 120F. And thats with the full
blocker plate and the oil door full closed. When I go in to land and start reducing
the power the oil temp drops. By the time I hit the ground its indicating
75F or so.
Any guesses or am I just stuck with it? I dont believe I have a vernatherm in my
cooler. Im fairly certain its just a bypass valve. Is it possible its stuck
and not letting oil bypass the cooler as it gets cold and thick?
Thanks for the insight.
Greg
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=487410#487410
Message 2
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Regarding the top overhaul, are the cylinders, pistons and rings all stock? Not
that it could be the cause of the problem. Im just curious.
How many hours on the top overhaul now?
Dennis
Sent from my iPhone
> On Feb 3, 2019, at 1:11 PM, "greg.barnhard@gmail.com" <greg.barnhard@gmail.com>
wrote:
>
>
> Heres one Im trying to wrap my head around.
>
> In the past, on my Yak 52W, my oil temps always seemed normal. They would take
a little bit of time to warm up but I could easily control them and keep them
in the middle of the green arc (oil in temp). In the summer I could run without
a blocker plate and then as it got progressively colder I would use different
blocker plates with different levels of blockage on the oil cooler face. No
problems keeping it at least 120 no matter how cold it got (New Yorker here).
>
> Fast forward, I did a top overhaul on my engine and replaced all of the flexible
lines on the airplane, and no matter what Im lucky if I can keep the oil temps
in the green. Even on a 60-70F day I would have to use a full blocker plate
on the cooler to get the oil temp up. I could get it warm for a Runup to about
110F. On takeoff with full power the oil temps would plummet down to 90F or
lower. They wouldnt start to come up until I close the cowl shutters a bit then
I could get them to 110-120F. If I didnt use a blocker plate the oil temps
would be anywhere from 90-100F the entire flight.
>
> I know that Im lucky that the temps arent too high but low oil temps are concerning
to me. In the winter time Im lucky to have 120F. And thats with the full
blocker plate and the oil door full closed. When I go in to land and start reducing
the power the oil temp drops. By the time I hit the ground its indicating
75F or so.
>
> Any guesses or am I just stuck with it? I dont believe I have a vernatherm in
my cooler. Im fairly certain its just a bypass valve. Is it possible its stuck
and not letting oil bypass the cooler as it gets cold and thick?
>
> Thanks for the insight.
>
> Greg
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=487410#487410
>
>
>
>
>
>
>
>
>
Message 3
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Greg,
I also have a 52TW. I lived in Colorado and have flown the airplane and
cold weather, never had a problem like you described. More often it
=99s a
problem keeping it cool and warm weather; in any case, I would suspect the
temperature gage is malfunctioning. Good luck and let us know what fixes
it.
On Sun, Feb 3, 2019 at 2:27 PM Anthony Savarese <dsavarese0812@bellsouth.ne
t>
wrote:
> dsavarese0812@bellsouth.net>
>
> Regarding the top overhaul, are the cylinders, pistons and rings all
> stock? Not that it could be the cause of the problem. I=99m just c
urious.
>
> How many hours on the top overhaul now?
> Dennis
>
> Sent from my iPhone
>
> > On Feb 3, 2019, at 1:11 PM, "greg.barnhard@gmail.com" <
> greg.barnhard@gmail.com> wrote:
> >
> greg.barnhard@gmail.com>
> >
> > Here=99s one I=99m trying to wrap my head around.
> >
> > In the past, on my Yak 52W, my oil temps always seemed normal. They
> would take a little bit of time to warm up but I could easily control the
m
> and keep them in the middle of the green arc (oil in temp). In the summer
I
> could run without a blocker plate and then as it got progressively colder
I
> would use different blocker plates with different levels of blockage on t
he
> oil cooler face. No problems keeping it at least 120 no matter how cold i
t
> got (New Yorker here).
> >
> > Fast forward, I did a top overhaul on my engine and replaced all of the
> flexible lines on the airplane, and no matter what I=99m lucky if I
can keep
> the oil temps in the green. Even on a 60-70F day I would have to use a fu
ll
> blocker plate on the cooler to get the oil temp up. I could get it warm f
or
> a Runup to about 110F. On takeoff with full power the oil temps would
> plummet down to 90F or lower. They wouldn=99t start to come up unti
l I close
> the cowl shutters a bit then I could get them to 110-120F. If I didn
=99t use
> a blocker plate the oil temps would be anywhere from 90-100F the entire
> flight.
> >
> > I know that I=99m lucky that the temps aren=99t too high bu
t low oil temps
> are concerning to me. In the winter time I=99m lucky to have 120F.
And that=99s
> with the full blocker plate and the oil door full closed. When I go in to
> land and start reducing the power the oil temp drops. By the time I hit t
he
> ground it=99s indicating 75F or so.
> >
> > Any guesses or am I just stuck with it? I don=99t believe I have
a
> vernatherm in my cooler. I=99m fairly certain it=99s just a b
ypass valve. Is it
> possible it=99s stuck and not letting oil bypass the cooler as it g
ets cold
> and thick?
> >
> > Thanks for the insight.
> >
> > Greg
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=487410#487410
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
===========
===========
===========
===========
===========
>
>
Message 4
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We use to know a guy named Macey....
> On Feb 3, 2019, at 5:43 PM, Brian Macey <bmacey916@gmail.com> wrote:
>
> Greg,
>
> I also have a 52TW. I lived in Colorado and have flown the airplane and co
ld weather, never had a problem like you described. More often it=99s a
problem keeping it cool and warm weather; in any case, I would suspect the t
emperature gage is malfunctioning. Good luck and let us know what fixes it.
>
>> On Sun, Feb 3, 2019 at 2:27 PM Anthony Savarese <dsavarese0812@bellsouth.
net> wrote:
.net>
>>
>> Regarding the top overhaul, are the cylinders, pistons and rings all stoc
k? Not that it could be the cause of the problem. I=99m just curious.
>>
>> How many hours on the top overhaul now?
>> Dennis
>>
>> Sent from my iPhone
>>
>> > On Feb 3, 2019, at 1:11 PM, "greg.barnhard@gmail.com" <greg.barnhard@gm
ail.com> wrote:
>> >
d@gmail.com>
>> >
>> > Here=99s one I=99m trying to wrap my head around.
>> >
>> > In the past, on my Yak 52W, my oil temps always seemed normal. They wou
ld take a little bit of time to warm up but I could easily control them and k
eep them in the middle of the green arc (oil in temp). In the summer I could
run without a blocker plate and then as it got progressively colder I would
use different blocker plates with different levels of blockage on the oil c
ooler face. No problems keeping it at least 120 no matter how cold it got (N
ew Yorker here).
>> >
>> > Fast forward, I did a top overhaul on my engine and replaced all of the
flexible lines on the airplane, and no matter what I=99m lucky if I c
an keep the oil temps in the green. Even on a 60-70F day I would have to use
a full blocker plate on the cooler to get the oil temp up. I could get it w
arm for a Runup to about 110F. On takeoff with full power the oil temps woul
d plummet down to 90F or lower. They wouldn=99t start to come up until
I close the cowl shutters a bit then I could get them to 110-120F. If I did
n=99t use a blocker plate the oil temps would be anywhere from 90-100F
the entire flight.
>> >
>> > I know that I=99m lucky that the temps aren=99t too high bu
t low oil temps are concerning to me. In the winter time I=99m lucky t
o have 120F. And that=99s with the full blocker plate and the oil door
full closed. When I go in to land and start reducing the power the oil temp
drops. By the time I hit the ground it=99s indicating 75F or so.
>> >
>> > Any guesses or am I just stuck with it? I don=99t believe I have a
vernatherm in my cooler. I=99m fairly certain it=99s just a byp
ass valve. Is it possible it=99s stuck and not letting oil bypass the c
ooler as it gets cold and thick?
>> >
>> > Thanks for the insight.
>> >
>> > Greg
>> >
>> >
>> >
>> >
>> > Read this topic online here:
>> >
>> > http://forums.matronics.com/viewtopic.php?p=487410#487410
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>>
>>
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Message 5
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I ave three independent oil temp gauges reading identically. The probes have all
been tested and are accurate.
Dennis, it is not stock. I have Barrett pistons and rings. At the present time
there are 80 hours since the top.
The first flight I did after the top, I expected high oil temps and had quite the
opposite.
Thanks,
Greg
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=487420#487420
Message 6
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Are any of the 3 gauges reading the oil temp coming out of the oil cooler/going
into the oil tank? Or are all reading the oil temp coming from the oil tank
and going into the oil pump?
Dennis
Sent from my iPhone
> On Feb 3, 2019, at 7:43 PM, "greg.barnhard@gmail.com" <greg.barnhard@gmail.com>
wrote:
>
>
> I ave three independent oil temp gauges reading identically. The probes have
all been tested and are accurate.
>
> Dennis, it is not stock. I have Barrett pistons and rings. At the present time
there are 80 hours since the top.
>
> The first flight I did after the top, I expected high oil temps and had quite
the opposite.
>
> Thanks,
> Greg
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=487420#487420
>
>
>
>
>
>
>
>
>
Message 7
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All three read oil in from the tank to the engine. The third temp probe is also
mounted in the oil canister where the other two oil temp probes are installed.
Greg
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=487424#487424
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