heat while driving

[Curt Sprenger]

Jana,

I needed to do some more investigation into the heating so did so the last day. Here is what I find. Hopefully this helps.

Gate Valve Operation - 1987 PT38 Your coach is most likely the same.

Five Gate Valves are located at the rear of the
coach.   

Two Valves are located on the street side at or
just forward at the 8V92 water pump. They control the coolant flow to Dash
Heat. In the open position they allow  heated coolant to flow to the dash heater. 

Two more valves…one is located forward of and below
the top of the rear bumper inside the frame rail. The other one is located curb
side of the 8V92 and the Thermostat housing. They control the coolant flow to
the chassis heaters, perhaps four heaters depending on year and length.

The 5^th valve… is located curb side about shoulder
height just inside the engine room door. It seems to be for isolating the water
heater in the event of a blowout in the heat exchanger or if you are working on
the heater.

Keep us post as we learn as others.

Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA

On Mon, Oct 12, 2009 at 3:48 PM, Jana Ewart <"janaquilts@gmail.com"> wrote:

 

Thanks for all the suggestions -- we found two valves in the back -- will continue to try different combs.

Jana

On Sun, Oct 11, 2009 at 3:27 PM, GARY MINKER <"garym33407@yahoo.com"> wrote:

 

Front heat is a cavalcade of events.  You have gate valves on the engine that need to be open. There are magnetic valves that have to work to let hot water flow. There are 4 or more fuses that need to be good and a dash switch.  Then it helps if the booster pump works.  then once it all works, it won't shut off and cooks you in the summer time.  Oh did I mention you might have a winter/summer switch that may be wired wrong and open the wrong valve and run the wrong pump. Gary 85 PT-40 --- On Sat, 10/10/09, Jana Ewart <"janaquilts@gmail.com"> wrote: From: Jana Ewart <"janaquilts@gmail.com"> Subject: [WanderlodgeForum] heat while driving To: "WanderlodgeForum@yahoogroups.com" Date: Saturday, October 10, 2009, 1:55 PM   We are finally on the road "full-time" as of this morning.  It is cooooollllldddd up here in the north.  Can anyone give us some ideas how to get dash heat while going down the road?  We have the right vent and left vent closed, the front heat under the camera is all the way to heat -- but the right and left fan switches only blow cold air.  Is there another button or switch we need to turn on?  Thanks so much. Jana (with ice cube feet) 89pt40wb The Bird House is on the road! Still in South Dakota -- Blessed are the people whose God is the Lord. (Psalm 144:15)

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Blessed are the people whose God is the Lord. (Psalm 144:15)