Cat 3208 oil cooler- engine oil temp hi- 89SP

[davidkerryedwards]

Oil cooler on a 3208 is mounted on the engine block bottom right side. Don't
think there's much to go wrong in the cooler itself. I think it functions by
using the engine coolant. I too would replace the sender or gauge or at least
use an infrared thermometer to get a sense of whether the oil temperature system
is functioning correctly.
If the oil is truly running at those temperatures, I would definitely be using
synthetic oil until the problem is solved since it can usually maintain it's
properties at higher temperatures.
Do you have an EGT gauge? If so, what are those temperatures. I think higher
EGT's can increase oil temperatures substantially since the oil is running thru
the turbo.
Has the oil always run at this temperature or is it a recent development? Does
it run at this temperature all the time or just under heavy loads like on a
steep grade? If it only gets this high under load, check to make sure that your
cooling fan is functioning correctly. What is your transmission fluid
temperature?
If the engine coolant temperature is also high, I'd suspect a malfunctioning
thermostat.

Kerry
82 FC 35
Denver


--- In WanderlodgeForum@yahoogroups.com, "Ed Gardels" wrote:
>
> My engine oil temp is running HI(manual says 230-270). Where is the oil
cooler and how does it work? Can you work on it your self? Can it be removed and
fixed or repaired? Anybody ever done this?
> What else could cause the hi temp. Dip stick shows full, no laeks...
>
> Thanks for any ideas or help
> Ed Gardels 89SP
> Arlington Texas
>