On Sat, Aug 21, 2010 at 10:16 AM, Dave Mcneely <mcneely4@cox.net> wrote:
> Please remember that the primary heater on my 1991 Volkswagon Vanagon GL Campmobile won't shut off. �That's quite a problem in 100 F plus heat, since shutting the air valves doesn't absolutely block heat from entering the cabin.
>
> So, finally got the heater valve cable traced from the lever to the valve. �Cable works fine, doesn't bind, isn't crimped. �Valve appears to turn from external view when the lever is shifted. �I can turn the valve directly with my hand, and the lever shifts. �Did this with a partner watching the lever, and the partner shifted the lever while I turned the valve while under the van. �Seems to work both ways.
>
> So, if the heater won't shut off, the valve must be bad, right? �Looks simple to replace, but I guess the more difficult process will then be refilling the coolant and getting the air purged from the system. �Well, that's another story. �Can anyone confirm that I am right about the valve? �Seems pretty straightforward to me that that is the case, but you guys are experts, I'm not.
>
> David McNeely
>

How long did you give the heater core to cool down when testing and
was this possible in cooler temps? (say at night)

Re: valve replacement. If hoses are clamped shut, then valve removed,
if one doesn't lose too much coolant, the amount of air introduced
shouldn't be a big deal to bleed out.

Neil.

-- 
Neil Nicholson '81 VanaJetta 2.0 "Jaco"

http://tubaneil.googlepages.com/

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines