407 heater valve

[Kevin H]

I have a few photos (see below) of the valve on a 408 and a 411. It appears that on the 408 (green car) that there is only one cable. On the 411 that is certainly the case. So maybe the valve on the 407 was different from the later V8 cars.

Whatever you do don't undo the screws which hold the heater valve bracket to the heater box - the nuts behind are NOT retained!

Incidentally, I have just been through the parts list for the 408-410 and I can't find that valve!

Kevin

[MYTA21]

From a brief look at the photo and my 1963 Alvis TD21, the valve on the
Bristol and the Alvis look to be the same, except the Alvis valve is on
the right side . It has the flange to body and same outlet.
I believe that Red Triangle at Kenilworth may have stock - I recall they
were advertising " repros" of one models heater valve a while back
Mike O

[Kevin H]

This second cable on Nick's valve is puzzling me. I can't think why it would be required, because there's only one valve. I can only guess that they didn't use the same solid cables on the 407. The point being that the solid core control cable is able to push the valve actuator as well as pull it.

Nick, are you absolutely sure that lower cable is connected to the valve?

I have attached some detailed photos of a valve from an Aston. I suspect the internals are interchangeable. From memory I think the original one which came off my DB6 had a separate diaphragm spring, but if you take yours apart you should be able to see whether the diaphragm with the retained spring will work as a replacement in your valve body.

You might be able to buy that diaphragm separately, but even if you can't do that, you can buy the Spitfire/GT6 valve for circa £20 and just use the parts.

Let us know how you get on.

Kevin

[Nick Challacombe]

Thank you all for your help, it just shows how wonderful these Forums are.

ACCS Martin Barns emailed me to say he had a new one in stock!
It is the correct one with two cables and a rod.
One cable is the heater control and the other is demist.

Whilst he was on he informed me he stock all glass including 411
heated rear screens, all suspension,gearbox,axles etc..

Why I did not ask him is that I thought he only did the yank parts.

Anyway well done Martin.
contact 020-72789786
or brisparts@aol.com

Thank you for your help, ideas and warnings.

Nick

[Kevin H]

I believe the valve may be the same as that used on the Triumph 2000 (1963-69).

How much was it Nick?

Kevin

[Nick Challacombe]

£36.00 plus VAT, but at least I know it is the right one.
When I asked a Triumph specialist he said that his only had one cable
to it. So I left it, he was asking £28.00
I thought better safe than sorry, after all Martin supplies them to
Bristol cars, he also supplies them with glass he says!
Thank again fot all your help.
Nick

[Stuart]

eBay UK has lots of heater valves on offer, under Classic spares or
similar....


Stuart (just found a close to 405 heater valve there)