1985 PT-40 Radiator Question

[Jay Darst]

Not sure of the build date on my 85 PT40 6V92, but there is no sight
glass...

Jay Darst



--- In WanderlodgeForum@yahoogroups.com, "bloomas"
wrote:
>
>
> ----- Original Message -----
> From: sfedeli3
> To: WanderlodgeForum@yahoogroups.com
> Sent: Tuesday, January 01, 2008 7:18 PM
> Subject: [WanderlodgeForum] Re: 1985 PT-40 Radiator Question
> My 85 pt 36 has a sight glass. Mine was built in Sept.
> Bob Loomas 1985 PT 36
>
>
>
> The '85 PT40 with the 6V92 does not have a sight glass. You just
have
> to keep feeding her 'til she pukes it back out. Usually after the
> system is opened up for repairs or hose work, you can fill it up
to
> the rim and continue to add another gallon or so over the next few
> days as the air works out of the system. The 8V92 option in 1986
> required a larger engine compartment with a higher ceiling
clearance.
> The overflow tank was kept at the same height, however, and
equipped
> with the sight glass.
>
> Shane Fedeli
> 85PT40
> Hershey, PA
>
> --- In WanderlodgeForum@yahoogroups.com, "Scott Forman" <sforman@>
> wrote:
> >
> > My '86 8v92 PT38 does have a sight glass. Surge tank is at top
left
> > (street side) of engine compartment with rear cover raised.
> >
> > Scott Forman
> > 86 PT38
> > Memphis
> >
> > --- In WanderlodgeForum@yahoogroups.com, Pete Masterson

> > wrote:
> > >
> > > The surge tank on the 8v92 may not have the sight glass. I
looked
> > at
> > > some photos of older PT-'birds on the Vintage Birds web site,
and
> > I
> > > could see (what I assume was) the surge tank just left of
center
> > at
> > > the top of the engine compartment (with the cover raised). I
> > didn't
> > > see the sight glass, so I assume that there's an indicator
tab
> > just
> > > inside the fill cap (as on many vehicles). (Overfilling the
> > radiator
> > > isn't a serious problem as excess coolant will simply exit
through
> > > the overflow tube -- but it does waste a bit of coolant.)
> > >
> > > A tear, even quite small, can allow a _lot_ of coolant to
escape,
> > > since it's under several pounds of pressure in the system.
> > >
> > > Pete Masterson
> > > '95 Blue Bird Wanderlodge WBDA 42
> > > El Sobrante CA
> > > aeonix1@
> > >
> > >
> > >
> > > On Jan 1, 2008, at 10:43 AM, curlesw wrote:
> > >
> > > > Thanks Pete.
> > > >
> > > > The hose ran from the pump into the engine block....fairly
easy to
> > > > reach. It had a 2.5" rip in it...didn't expect such a huge
> > failure.
> > > > Sure, maybe a small hole from a 21 year old hose, but wow!
I
> > lost a
> > > > lot of fluid very quickly. I'm glad the engine alarm worked
> > since it
> > > > was at night and I could not see all the smoke pouring out
the
> > back.
> > > >
> > > > I did not noticed the surge tank and site glass...will have
to
> > look
> > > > for that when I add coolant back into the system to ensure
I do
> > not
> > > > overflow.
> > > >
> > > > I read the BB manual and it said to use an antifreeze which
> > contains
> > > > ethylene glycol. When I get back home I'll have a complete
flush
> > of
> > > > all fluids anyway, it's time for a complete refresh...just
need to
> > > > get home by Sunday, which is 2,000 miles away!
> > > >
> > > > v/r
> > > > Wayne C.
> > > > San Deigo, CA
> > > > 1985 PT-40
> > > >
> > > >
> > > > --- In WanderlodgeForum@yahoogroups.com, Pete Masterson

> > > > wrote:
> > > >>
> > > >> The engine radiator in a PT is on the left (street) side
at the
> > > > rear
> > > >> of the coach. From the inside, you should be able to see a
fan
> > > > (with
> > > >> a shroud around it) that pulls air through the radiator.
The
> > > > radiator
> > > >> near the generator is for the generator only.
> > > >>
> > > >> The fill for the radiator is in the center on the rear
above the
> > > >> engine compartment cover. It feeds into a surge tank.
Usually
> > > > there's
> > > >> a small, round sight glass. The water level (minimum) is
to the
> > > >> center of the sight glass. (Too full will cause the
coolant to
> > > >> overflow when it heats up.)
> > > >>
> > > >> Be sure you're using a coolant that's appropriate to the
engine.
> > > >> Check the Detroit Diesel recommendation for your engine.
> > > >>
> > > >> It occurs to me that the hose -might- have been for the
generator
> > > >> rather than the engine. Where, exactly, was the hose you
> > replaced?
> > > >> (Of course, you should check the water level in the
generator as
> > > >> well. That's accomplished by removing the radiator cap and
> > looking
> > > > in.)
> > > >>
> > > >> Pete Masterson
> > > >> '95 Blue Bird Wanderlodge WBDA 42
> > > >> El Sobrante CA
> > > >> aeonix1@
> > > >>
> > > >>
> > > >>
> > > >> On Dec 31, 2007, at 5:34 PM, 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.
> > > >>>
> > > >>>
> > > >>
> > > >>
> > > >> [Non-text portions of this message have been removed]
> > > >>
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
>
>
>
>
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> [Non-text portions of this message have been removed]
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