Overheating 3208 in a 90SP36

[Eric Johnson]

Hello Again Chuck,
Mike's idea about a spray bar will improve cooling capacity on a hot, dry, day,
but not sure
where he gets the max numbers on coolant and oil. Important to remember the
thermostat doesn't fully open until 185ºF. Radiator cap pressure rating of 7
psig, altitude
and coolant composition set how hot you can run the radiator before you boil
over.
Engine oil can safely operate at sustained temperatures of 220-240ºF and for
shorter
periods as high as 300ºF with no problems given normal oil changes.
Regards, Eric
84FC35SBWL2

--- In WanderlodgeForum@yahoogroups.com, "Eric Johnson" wrote:
>
> Hello Chuck,
> My 3208 is in the front rather than the back but your experiences were much
like mine
> while climbing mountain passes in Colorado. Not sure you can expect any lower
> temperatures than what you're getting in hot summer weather. I found on my
coach
that
> it helps some to gear down as your speed drops off to keep RPM's up so the fan
cools
> better and the engine load is reduced.
> Regards, Eric
> 84FC35SBWL2
>
> --- In WanderlodgeForum@yahoogroups.com, "williamcharrison"

> wrote:
> >
> > Just came back from a long trip and noticed that at every extended
> > grade climb the temp gauge would start climbing toward 220.
> > It never reached 220 but the level increase alarms me. I have
> > cleaned the radiator and put new belts on all around. The oil temp
> > also climbs to about 230 (though I don't know what the danger level
> > is). The thermostat was replaced before my first trip this year
> > and I had no similar problems, but then the temperature was in the 70's
> > and on the last trip it was in the 90's.
> >
> > Chuck Harrison
> > Akron, Ohio
> > 90SP36
> >
>