Over heating 6V92

[Jay Darst]

Jack(and the rest of the gang here),

I removed both thermostats from the 6V92.

Threw them and thermometer, along with 1 of the new thermostats, in a
pan of water on the stove. When the water temp was 178 degrees, the
new thermostat began to open. The old thermostats remained closed up
to 190 degrees. The thermostat from drivers side required 205 degrees
to open and then it didn't open very much, maybe 1/3 as much as the
new thermostat. The passenger side thermostat opened at 190 degrees
but only about 1/2 as far as the new thermostat.

Found a heater hose that is located along the passenger, outer frame
rail, just forward of the drive tires had a little leak. I guess that
lost enough coolant to cause the water pump to cavitate and not move
coolant.

I received an e-mail from Tom Warner who indicated that if the temp
were to exceed 195 degrees, its bad for them. Something about sleeve
seals... I need to look into that. I have been to 200 degrees thru the
desert and the mountains many times.

The oil level is correct, no signs of anti freeze. The antifreeze
looks good, no signs of oil.

Is there a trick to refilling the coolant so as not to have air
pockets in the coolant?

If you have, yourself, flushed your cooling system and refilled it, I
would like to hear of the procedure.

Thanks AGAIN!

Jay Darst
85PT40 6V92 MTB654CR
Springfield, IL



--- In WanderlodgeForum@yahoogroups.com, "birdboat44"
wrote:
>
> Jay, Jack Jones here, the only thing that would cause sudden over
> heating would have to be one the thermostats or the fan did not come
> on. My 8v92 while idling will not heat up enough to turn the fan on.
> You can bet it will happen again.
> Jack
> 87 Pt 40 East Tn right next to Gatlinburg
>