Wanted - Water valve

L

Loth

New Member
Hi guys,

Im running into a great deal of difficulty finding a replacement water valve for my NADA 3500s. Does anyone know of a manufacturer that makes a suitable replacement or does anyone have one in good condition sitting around?

EDIT: I should probably have mentioned that this is the water valve for the heater, according to my parts manual its Rover part # 606627, if that helps.

Thanks in advance

Derek
 
Hi Derek

I'm afraid this is a holy grail part for the NADA! Various other cars use a similar valve, but without the vacuum actutor, which makes them pretty pointless for the NADA. I only have three suggestions.

Repair 1: If the water portion of the valve is defective, then it might be possible to buy a plain, non servoed, valve and swap the internals / swop the servo parts, so that you have a working valve.

Repair 2: If the vacuum servo side is defective, a decent copper smith ought to be able to sort out any leaks in the capilliary. The actual servo is common with the other servo's in the heater box, and crucially, with the A/C set up in the SD1. Until recently you could get spares of those!

Repair 3: Again for a broken vacuum side. The only other option I can think of is to blank off the vacuum feed to the servo and rig up the water valve to operate from a bowden cable. In the cabin you could then terminate the other end of the bowden cable in a choke type knob, which could live next to the real choke (or is it petrol reserve on a NADA - I haven't got the handbook in front of me) on the small mounting against the drivers right knee. That way you retain automatic temperature control of the cooling but control over heating becomes manual.

Sorry

Chris
 
Chris,

Thanks for the information. I'm glad, in a way, that the absolute lack of options is not down to me being incompetent, though that mught be an easier fix :).

As far as I know so far the only issue is that it leaks water prodigously so the rebuild option might be the best one.

I'll see what I can dig up on that. Tnanks for the pointers.

Derek
 
hi loth,
they are pretty reliable, no extremely reliable, the only thing that usually goes wrong is water leaking ( which you have ) which is the diaphram inside which will have split. it is a factory sealed unit and something i have not yet ever taken apart. looks like you and me both need to take them apart and see what's what.

ian
 
You must log in or register to reply here.
Back
Top