Over heating -- cause found

[Gregory OConnor]

Pete, after reading your post I inspectd my radiator (94pt8V92)and
was not able to get a good look at the Fins. as you posted, many
things are in the way. After night fall I placed a shop light bulb
between the shroud and the radiator ( from engine compartment). I
was then able to get a very good inspection of the fins by viewing
the light through the radiator vent door.the parimiter is dirty but
no blockage. I plan on washing it up using laundry detergent ( Arial
in plastic bag). dont forget to replace your R cap or test it for
rated opening. his will keep you from having leaks with high
pressure and keep you from cutting hoses by over tension on clamps
Gregory O'Connor
94ptRomoland Ca-

-- In WanderlodgeForum@yahoogroups.com, Pete Masterson
wrote:
>
> On the way home with my new-to-me 'bird at the end of May, I was
> concerned about it running on the "hot" end of the safe zone during
a
> couple of legs of the trip ... and having significant overheating
> problems on the grades outside Salt Lake City coming west on I-80
in
> Nevada in 92 degree weather.
>
> Finally got my 'bird into a radiator shop and discovered that 35
to
> 40 percent of the radiator was completely plugged by a mixture of
oil
> and dirt -- turning it practically into concrete. This has been a
> frequently reported problem with DD 6Vxx and 8Vxx engines (noted
for
> tossing a bit of oil around) ... but (apparently) the Series 60
isn't
> immune either.
>
> What is a particular concern is that inspection of the radiator
while
> it was in the vehicle did not reveal the blockage. Due to shrouds,
AC
> evaporator, etc., the view of the area outside the center portion
> (where the fan spins) can't be seen (at least I couldn't see it
> clearly). The center area (where the fan spins) was open and clear
(a
> bright light was clearly visible looking through the radiator).
The
> fan seems to pull the crud out of that area, but there isn't
enough
> air pressure outside the immediate area of the fan to keep other
> portions of the radiator clear.
>
> I suspect that all the pusher models are prone to this problem. I
> don't know if it's unique to my model BB or if others have better
> access to their radiators -- but the caution is to make cleaning
the
> radiator and checking to be sure that it isn't clogged with the oil-

> dust "cement" as a regular part of annual maintenance.
>
> Since it required pulling the radiator to find the problem, I'm
going
> ahead and replacing the core with a more modern/effective design
> (this is a big bucks project) so I hope to not have further
heating
> problems for awhile.
>
> Pete Masterson
> aeonix1@...
> '95 Bluebird Wanderlodge WBDA 42'
> El Sobrante, CA
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
>