REFLECTOR:Oil Congealing Problems in Lines to Front Cooler

[John Dibble]

My oil temperature sensor is at the cooler, so if my lines were 
congealed, I wouldn't know if the oil in the engine got too hot.  Of 
course if I see my oil temp begin to creep up then I know I have some 
flow.  Isn't it unlikely that the engine oil will get too hot when the 
air temperature is so cold?

John

Scott wrote:

> Your worried about a non-problem.
>
> Lycoming & Continental, and every engine that I know of, has a oil 
> cooler/filter bypass valve in case the cooler/filter is clogged from 
> dirt or congealed oil.  WIth a cooler its a thermostat & bypass valve.
>
> see for lycoming
>
> http://www.lycoming.textron.com/main.jsp?bodyPage=/support/publications/keyReprints/maintenance/moreAboutOil.html 
>
>
> If the oil is congealed it will bypass the cooler to some degree.  If 
> the oil congealed so much that you wouldn't get any flow through the 
> filter, that would have to be really really cold,  you would have oil 
> pressure but most likely the oil temperature would rise above red line 
> fairly soon.
>
> I don't live up where it is really cold, but I've had many starts 
> around 10F below Zero with no problem.  I run Phillips 10-50.  Of 
> course I preheated my engine, but not the nose cooler.
>
> Scott
>
>
>