Today's Message Index:
----------------------
1. 07:30 AM - Re: Oil capacity (Flysrv10)
2. 07:39 AM - Re: Oil capacity (Kelly McMullen)
3. 08:04 AM - Re: Oil capacity (Miller John)
4. 01:22 PM - Re: Oil capacity (P Reid)
5. 07:23 PM - Re: Oil capacity (Flysrv10)
6. 07:24 PM - Re: Oil capacity (Flysrv10)
7. 08:15 PM - Re: Oil capacity (Jesse Saint)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Oil capacity |
I want to thank everyone for responding to my issue. Lots of good information
that will help me decide what to do, if anything.
On my return trip next week, I am going to continue the climb to see if I reach
245 deg oil temp. Hopefully it will stabilize somewhere below 245. If I find
something useful, I will share with the group.
Sent from my iPhone
> On May 27, 2016, at 8:04 PM, <kboatright1@comcast.net> <kboatright1@comcast.net>
wrote:
>
>
> Unless you're low enough on oil to lose oil pressure, oil quantity does not have
an appreciable impact on oil temperature. More oil does not result in more
cooling capacity. Cooling capacity is the a function of the cylinder fins, the
oil cooler, and the surface of the engine block, accessory case, and sump.
All of those reject heat into an airstream which has a flow rate and a delta T(emperature).
Adding oil doesn't change the mass flow through the oil cooler
or the surface area which is radiating heat, nor does it change anything about
the airstream.
>
>
>
>
>
>
>
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Oil capacity |
I would recommend against allowing oil temp to climb above 225. Yes,
Lycoming red line is 245. You do not want to operate anywhere near the
red line, as oil begins breaking down much above that, and the oil temp
probe is at the coolest point in the whole oil system, in the return
line from the oil cooler.
Take action via increased airspeed and/or reduced power as soon as oil
temp goes above 220. It will take time for it to come down. It may in
fact increase some before it starts to come down.
Kelly
On 5/28/2016 7:29 AM, Flysrv10 wrote:
>
> I want to thank everyone for responding to my issue. Lots of good information
that will help me decide what to do, if anything.
>
> On my return trip next week, I am going to continue the climb to see if I reach
245 deg oil temp. Hopefully it will stabilize somewhere below 245. If I find
something useful, I will share with the group.
>
> Sent from my iPhone
>
>> On May 27, 2016, at 8:04 PM, <kboatright1@comcast.net> <kboatright1@comcast.net>
wrote:
>>
>>
>> Unless you're low enough on oil to lose oil pressure, oil quantity does not
have an appreciable impact on oil temperature. More oil does not result in more
cooling capacity. Cooling capacity is the a function of the cylinder fins,
the oil cooler, and the surface of the engine block, accessory case, and sump.
All of those reject heat into an airstream which has a flow rate and a delta
T(emperature). Adding oil doesn't change the mass flow through the oil cooler
or the surface area which is radiating heat, nor does it change anything about
the airstream.
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Oil capacity |
Be careful! If your oil temps get that high, your cylinder head temps will likely
be well beyond 400and you dont want to go there! CHTs are far more important
to monitor than oil.just ask Mike Busch.
grumpy
> On May 28, 2016, at 9:29 AM, Flysrv10 <flysrv10@gmail.com> wrote:
>
>
> I want to thank everyone for responding to my issue. Lots of good information
that will help me decide what to do, if anything.
>
> On my return trip next week, I am going to continue the climb to see if I reach
245 deg oil temp. Hopefully it will stabilize somewhere below 245. If I find
something useful, I will share with the group.
>
> Sent from my iPhone
>
>> On May 27, 2016, at 8:04 PM, <kboatright1@comcast.net> <kboatright1@comcast.net>
wrote:
>>
>>
>> Unless you're low enough on oil to lose oil pressure, oil quantity does not
have an appreciable impact on oil temperature. More oil does not result in more
cooling capacity. Cooling capacity is the a function of the cylinder fins,
the oil cooler, and the surface of the engine block, accessory case, and sump.
All of those reject heat into an airstream which has a flow rate and a delta
T(emperature). Adding oil doesn't change the mass flow through the oil cooler
or the surface area which is radiating heat, nor does it change anything about
the airstream.
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Oil capacity |
Kelly beat me to the same response. There shouldn't be s reason why you should
see 220 if you can cut back the power to keep airspeed up initially as the temps
on the CHT goes down than add power you should be able to keep everything low.
My flight this morning
FT on takeoff
2500 rpm at 800 male
Power back to 85%
Oil was 193 and CHT Topped 395f
Went down from there.
Don't let the oil get too hot but also don't worry if it does get up there (220-225)
for s brief moment because you need altitude or another reason.
> On May 28, 2016, at 7:42 AM, Kelly McMullen <kellym@aviating.com> wrote:
>
>
> I would recommend against allowing oil temp to climb above 225. Yes, Lycoming
red line is 245. You do not want to operate anywhere near the red line, as oil
begins breaking down much above that, and the oil temp probe is at the coolest
point in the whole oil system, in the return line from the oil cooler.
> Take action via increased airspeed and/or reduced power as soon as oil temp goes
above 220. It will take time for it to come down. It may in fact increase
some before it starts to come down.
> Kelly
>
>> On 5/28/2016 7:29 AM, Flysrv10 wrote:
>>
>> I want to thank everyone for responding to my issue. Lots of good information
that will help me decide what to do, if anything.
>>
>> On my return trip next week, I am going to continue the climb to see if I reach
245 deg oil temp. Hopefully it will stabilize somewhere below 245. If I find
something useful, I will share with the group.
>>
>> Sent from my iPhone
>>
>>> On May 27, 2016, at 8:04 PM, <kboatright1@comcast.net> <kboatright1@comcast.net>
wrote:
>>>
>>>
>>> Unless you're low enough on oil to lose oil pressure, oil quantity does not
have an appreciable impact on oil temperature. More oil does not result in more
cooling capacity. Cooling capacity is the a function of the cylinder fins,
the oil cooler, and the surface of the engine block, accessory case, and sump.
All of those reject heat into an airstream which has a flow rate and a delta
T(emperature). Adding oil doesn't change the mass flow through the oil cooler
or the surface area which is radiating heat, nor does it change anything about
the airstream.
>
>
>
>
>
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Oil capacity |
Thanks Kelly for the warning. I will watch for the trend and stop at 220.
Sent from my iPhone
> On May 28, 2016, at 8:38 AM, Kelly McMullen <kellym@aviating.com> wrote:
>
>
> I would recommend against allowing oil temp to climb above 225. Yes, Lycoming
red line is 245. You do not want to operate anywhere near the red line, as oil
begins breaking down much above that, and the oil temp probe is at the coolest
point in the whole oil system, in the return line from the oil cooler.
> Take action via increased airspeed and/or reduced power as soon as oil temp goes
above 220. It will take time for it to come down. It may in fact increase
some before it starts to come down.
> Kelly
>
>> On 5/28/2016 7:29 AM, Flysrv10 wrote:
>>
>> I want to thank everyone for responding to my issue. Lots of good information
that will help me decide what to do, if anything.
>>
>> On my return trip next week, I am going to continue the climb to see if I reach
245 deg oil temp. Hopefully it will stabilize somewhere below 245. If I find
something useful, I will share with the group.
>>
>> Sent from my iPhone
>>
>>> On May 27, 2016, at 8:04 PM, <kboatright1@comcast.net> <kboatright1@comcast.net>
wrote:
>>>
>>>
>>> Unless you're low enough on oil to lose oil pressure, oil quantity does not
have an appreciable impact on oil temperature. More oil does not result in more
cooling capacity. Cooling capacity is the a function of the cylinder fins,
the oil cooler, and the surface of the engine block, accessory case, and sump.
All of those reject heat into an airstream which has a flow rate and a delta
T(emperature). Adding oil doesn't change the mass flow through the oil cooler
or the surface area which is radiating heat, nor does it change anything about
the airstream.
>
>
>
>
>
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Oil capacity |
Thanks. I agree.
Sent from my iPhone
> On May 28, 2016, at 1:11 PM, P Reid <rv10flyer@live.com> wrote:
>
>
> Kelly beat me to the same response. There shouldn't be s reason why you should
see 220 if you can cut back the power to keep airspeed up initially as the temps
on the CHT goes down than add power you should be able to keep everything
low.
> My flight this morning
> FT on takeoff
> 2500 rpm at 800 male
> Power back to 85%
> Oil was 193 and CHT Topped 395f
> Went down from there.
>
> Don't let the oil get too hot but also don't worry if it does get up there (220-225)
for s brief moment because you need altitude or another reason.
>
>
>> On May 28, 2016, at 7:42 AM, Kelly McMullen <kellym@aviating.com> wrote:
>>
>>
>> I would recommend against allowing oil temp to climb above 225. Yes, Lycoming
red line is 245. You do not want to operate anywhere near the red line, as oil
begins breaking down much above that, and the oil temp probe is at the coolest
point in the whole oil system, in the return line from the oil cooler.
>> Take action via increased airspeed and/or reduced power as soon as oil temp
goes above 220. It will take time for it to come down. It may in fact increase
some before it starts to come down.
>> Kelly
>>
>>> On 5/28/2016 7:29 AM, Flysrv10 wrote:
>>>
>>> I want to thank everyone for responding to my issue. Lots of good information
that will help me decide what to do, if anything.
>>>
>>> On my return trip next week, I am going to continue the climb to see if I reach
245 deg oil temp. Hopefully it will stabilize somewhere below 245. If I find
something useful, I will share with the group.
>>>
>>> Sent from my iPhone
>>>
>>>> On May 27, 2016, at 8:04 PM, <kboatright1@comcast.net> <kboatright1@comcast.net>
wrote:
>>>>
>>>>
>>>> Unless you're low enough on oil to lose oil pressure, oil quantity does not
have an appreciable impact on oil temperature. More oil does not result in
more cooling capacity. Cooling capacity is the a function of the cylinder fins,
the oil cooler, and the surface of the engine block, accessory case, and sump.
All of those reject heat into an airstream which has a flow rate and a delta
T(emperature). Adding oil doesn't change the mass flow through the oil cooler
or the surface area which is radiating heat, nor does it change anything about
the airstream.
>
>
>
>
>
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Oil capacity |
I had an engine that seemed to always run hot oil. I talked to Mahlon at Mattituck
and he said to check the temp of the oil filter after a flight with a laser
thermometer with the engine running. He said the oil filter should be within
10-15 degrees of the oil temp sensor if the sensor is working correctly. Ours
was about 30-35 degrees cooler. He said it was most likely a bad probe and to
carry on. Just a thought, but it could be the probe or the wiring to the probe.
I have seen that before. What is the lowest it runs in cruise?
Jesse Saint
Saint Aviation, Inc.
352-427-0285
jesse@saintaviation.com
Sent from my iPad
> On May 28, 2016, at 10:22 PM, Flysrv10 <flysrv10@gmail.com> wrote:
>
>
> Thanks. I agree.
>
> Sent from my iPhone
>
>> On May 28, 2016, at 1:11 PM, P Reid <rv10flyer@live.com> wrote:
>>
>>
>> Kelly beat me to the same response. There shouldn't be s reason why you should
see 220 if you can cut back the power to keep airspeed up initially as the
temps on the CHT goes down than add power you should be able to keep everything
low.
>> My flight this morning
>> FT on takeoff
>> 2500 rpm at 800 male
>> Power back to 85%
>> Oil was 193 and CHT Topped 395f
>> Went down from there.
>>
>> Don't let the oil get too hot but also don't worry if it does get up there (220-225)
for s brief moment because you need altitude or another reason.
>>
>>
>>> On May 28, 2016, at 7:42 AM, Kelly McMullen <kellym@aviating.com> wrote:
>>>
>>>
>>> I would recommend against allowing oil temp to climb above 225. Yes, Lycoming
red line is 245. You do not want to operate anywhere near the red line, as
oil begins breaking down much above that, and the oil temp probe is at the coolest
point in the whole oil system, in the return line from the oil cooler.
>>> Take action via increased airspeed and/or reduced power as soon as oil temp
goes above 220. It will take time for it to come down. It may in fact increase
some before it starts to come down.
>>> Kelly
>>>
>>>> On 5/28/2016 7:29 AM, Flysrv10 wrote:
>>>>
>>>> I want to thank everyone for responding to my issue. Lots of good information
that will help me decide what to do, if anything.
>>>>
>>>> On my return trip next week, I am going to continue the climb to see if I
reach 245 deg oil temp. Hopefully it will stabilize somewhere below 245. If I
find something useful, I will share with the group.
>>>>
>>>> Sent from my iPhone
>>>>
>>>>> On May 27, 2016, at 8:04 PM, <kboatright1@comcast.net> <kboatright1@comcast.net>
wrote:
>>>>>
>>>>>
>>>>> Unless you're low enough on oil to lose oil pressure, oil quantity does not
have an appreciable impact on oil temperature. More oil does not result in
more cooling capacity. Cooling capacity is the a function of the cylinder fins,
the oil cooler, and the surface of the engine block, accessory case, and sump.
All of those reject heat into an airstream which has a flow rate and a delta
T(emperature). Adding oil doesn't change the mass flow through the oil cooler
or the surface area which is radiating heat, nor does it change anything about
the airstream.
>
>
>
>
>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|