Valve Assembly: SIII

[jrd51ox]

Been awhile...and yet again, I'm back for help....

The Valve Assembly on my SIII Heater Control is leaking radiator fluid. I never used the heater and have been running without a problem for over a year now, guess I'm due.

No idea how to stop this fluid loss.....or which direction the sliding valve should be.

Please advise.....and always thanks for all your help.

This is where the fluid is coming from....

http://www.roversnorth.com/store/p-2457-valve-assm-heater-control-series-iii.aspx

[Les Parker]

RNC663 Adaptor Heater pipe

I would suggest fitting one of these and by-passing the heater altogether, until you can locate the replacement heater valve :-

http://www.roversnorth.com/store/searchadv.aspx?SearchTerm=rnc663

[SafeAirOne]

Those valves stink. There's a rubber diaphragm inside there that can crack, allowing coolant to leak out where the actuating lever is. They're expensive and mine only lasted maybe... 4 years.


There are alternatives to this valve out there if you are creative.

BTW--The threads are just normal pipe threads IIRC. Home depot sells stuff that'll get you by in an emergency.

[stomper]

Ive seen a ball valve placed inline. It was a great idea, but you had to open the hood to adjust the heat.

[jrd51ox]

What is the easiest & cheapest fix if I have no need to ever use the heater?

[SafeAirOne]

What is the easiest & cheapest fix if I have no need to ever use the heater?

Remove the fittings for both heater hoses at the thermostat housing and install 2 plugs from Home Depot.

[jrd51ox]

Great, thank you.

[bobzinak]

cheapest way, napa part number BK6601402, right angle valve with shut off. Cable controled valve napa BK6601301..I've used these for years with out a problem.. The rover one necks down the hose to 3/8. after market keeps the 5/8 diameter, increasing the coolant flow = bettter heat. even if you don't use the heater for heating the cab, it is nice to have warm air for defrosting, such as it is in a land rover s111. bobzinak

[SalemRover]

cheapest way, napa part number BK6601402, right angle valve with shut off. Cable controled valve napa BK6601301..I've used these for years with out a problem.. The rover one necks down the hose to 3/8. after market keeps the 5/8 diameter, increasing the coolant flow = bettter heat. even if you don't use the heater for heating the cab, it is nice to have warm air for defrosting, such as it is in a land rover s111. bobzinak

Thank You! I do like having that heater control on the series III but my valve died years ago and I have been running a straight pipe. What I do not like about the straight pipe solution is that the lower dash gets pretty warm with just the ambient air flowing through on a hot summers day.

-Jason

[SafeAirOne]

Cable controled valve napa BK6601301.

Good to know. Since my 4 year old factory valve failled, I had been using a plastic cable-operated VW valve but wasn't satisfied with its performance, so I removed that and just plumbed it straight through. This valve is a great option, by the looks of it.

This is also known by the Folur Seasons part number 74661 if you are getting it anywhere other than NAPA.

Do you know, by chance, whether its a pull for heat or a push for heat setup?

[TedW]

cheapest way, napa part number BK6601402, right angle valve with shut off. Cable controled valve napa BK6601301..I've used these for years with out a problem.. The rover one necks down the hose to 3/8. after market keeps the 5/8 diameter, increasing the coolant flow = bettter heat. even if you don't use the heater for heating the cab, it is nice to have warm air for defrosting, such as it is in a land rover s111. bobzinak

Um, looks good to me. But how does one attach the cable? The posts don't appear to have any threads.

[bkreutz]

There are universal cable kits available (think choke cable), some of them have a spiral curl on the end that slips over the arm on the valve, or they use an adjustable barrel stop with a hole in it. Or you could put the ball valve like was suggested earlier, you would have to open the hood to adjust the heat, and then you'd be just like an MG Midget

Edit: Ted, I just re-read your post, to secure the cable a friction clip is used.

[TedW]

Edit: Ted, I just re-read your post, to secure the cable a friction clip is used.

Is that something NAPA would have?

[bkreutz]

They should, they're used in a lot of different applications (like holding emblems and trim on) basically they're a piece of tin with a hole and kind of a finger that operates like a finger trap, pushes on easy one way and not so easy the other way, I've got a tub full of them I collected in my 40 years of being a mechanic.

[Donnie]

Been awhile...and yet again, I'm back for help....

The Valve Assembly on my SIII Heater Control is leaking radiator fluid. I never used the heater and have been running without a problem for over a year now, guess I'm due.

No idea how to stop this fluid loss.....or which direction the sliding valve should be.

Please advise.....and always thanks for all your help.

This is where the fluid is coming from....
http://www.roversnorth.com/store/p-2...eries-iii.aspx

I agree with bobzinak on this one. I use the NAPA cable controlled valve on many applications..It is inexpensive & easy to install & works great. Ford trucks & vans used this style for many years..I use one on my grease wagen to control the flow of coolant to my 2nd tank.......donnie