1985 PT-40 Radiator Question

[Jay Darst]

Wayne,
I replaced the thermostats in the 6V92 last year. That procedure
required draining much of the anti-freeze.

When it came time to refill, I used a 4 foot step ladder and a helper.

You'll need a funnel with a flexible hose, 6 gallons of Ethyl Glycol
Concentrate, 6 gallons of Distilled Water and a bottle of Fleetguard
DCA-4 additive and a 6-pak of test strips.(go to the local big truck
store for the additive and test strips). You may need more antifreeze
and water, pends on how much is been drained.

May want to go ahead and drain whats left and refresh the system at
this time. If you are mechanically inclined, and you want to do
diligence/preventive maintenance and replace the thermostats and
water pump, if you have no record of such update.

Using a coat hanger or other stiff wire, configure the wire to hold
the funnel upright so you can use both hands to pour the antifreeze.

I bought gallons of concentrated ethyl glycol and gallons of
distilled water. Added a gallon of antifreeze then a gallon of
distilled water, then a gallon of antifreeze then a gallon of
distilled water, etc until full up to the radiator cap.

Then, with the winter/summer switch set to winter and the thermostat
for the chassis heat set as high as it goes, take 'er out for a ride.
Make sure you reach operating temp. If the engine alarm sounds, you
can be reasonably sure you'll need to add coolant when you get back.

When you get back home, allow cool down time. Pull the radiator cap
and stick a test strip in there and read it. You may need to and see
what your level looks like. Probably will need to add coolant.

Repeat the antifreeze/distilled water/take it for a drive/heat it
up/return for cool down and recheck level until you do not need to
add coolant anymore.

You're done.

Jay Darst
85PT40 6V92 with updated coolant/thermostats/water pump/hoses/clamps
00 Prevost Royale H345 FOR SALE Buy it Now $329k
91 Prevost Royale 40XL FOR SALE Buy it Now $129k
HPRCoach.com
HPRCars.com
Springfield/Sullivan, IL

--- In WanderlodgeForum@yahoogroups.com, "curlesw"
wrote:
>
> Ron, thank you very much for the response. Any hints or helpful
ideas
> in adding fluid. I lost a lot of fluid when the hose busted so I'm
> not sure exactly how much too add. I read the manual to bleed the
> heater system, seems easy enough, but it's my first time.
>
> v/r
> Wayne Curles
> San Diego, CA
> 1985 PT-40
>
>
> --- In WanderlodgeForum@yahoogroups.com, "ronmarabito2002"
> wrote:
> >
> > No, the radiator for the engine on a PT-40 is at the rear on the
> > drivers side. The fill is probably through a small door on the
back
> > end of the coach above the engine access door.
> >
> > By the way, please sign your posts with Name, Location and year &
> > Model coach.
> >
> > R.E. (Ron) Marabito, Dallas, TX 92WB40
> > Wanderlodge Forum Moderator.
> >
> >
> > --- In WanderlodgeForum@yahoogroups.com, "curlesw"
wrote:
> > >
> > > This seems like a silly question, but here goes. I need to add
> > > coolant and read the instructions. I had a leak in a hose that
> > > required replacement and now need to add coolant to the system.
> > >
> > > Does the engine use the same radiator as the one located in
front of
> > > the generator? I just assumed there would be a separate
radiator but
> > > guess not, correct?
> > > Thanks.
> > >
> > > Wayne C.
> > >
> >
>