Motorhome heater core valve?

[WineStream]

Has anyone seem something like this on their moho? It is in the coolant line that feeds the heater core. I cannot find the pull lever inside the moho that controls this, but that's another story. I've worked on a lot of vehicles but I've never seem such a thing as this. I'm inclined to remove it, but the PO of the moho have me a spare valve. He too did not know where the control lever was, just that there was a spare valve.

[gunner]

On my 345 the Valve is controlled by the hot/cold slide control on the heater control panel in the dash.

[masseyfarm]

Lots of info here. http://www.airforums.com/forums/f313...oor-76472.html



I believe this style the slide control handles the fresh air door and the coolant control is vacumn so you may still not have your answer.

Dave

Originally Posted by WineStream

Has anyone seem something like this on their moho? It is in the coolant line that feeds the heater core. I cannot find the pull lever inside the moho that controls this, but that's another story. I've worked on a lot of vehicles but I've never seem such a thing as this. I'm inclined to remove it, but the PO of the moho have me a spare valve. He too did not know where the control lever was, just that there was a spare valve.

[WineStream]

That's pretty similar. I'd say on the newer clippers that they went to vac control over the mechanical in my 77. The heat slider on the dash is known to not do anything right now, so maybe there's the issue. It just needs to be connected up to that valve.

[vswingfield]

Originally Posted by WineStream

... The heat slider on the dash is known to not do anything right now, so maybe there's the issue. It just needs to be connected up to that valve.

That sounds correct to me.

That looks like the heater control on most older cars. Also, older cars only had one AC speed, full cold. The temperature was adjusted using the heat from the engine—called reheat air.

[rideair]

That's a standard heating valve that can be had at any auto parts place. Normally inline on the "hot" side of the heating system (from the engine) (not the radiator).

Five-seven bucks buys a new one all day.

[klattu]

Leave it on, or replace, it does good job of keeping heat out of interior during summer.
On Gms this valve was on Oldmobiles and up.

[Keyair]

That valve looks in bad shape... they seize up, and if that happens there is a good chance that the heater contol lever will be damaged or pushed off.
I got a new valve for my Aux heater off Ebay.. it was like $17...