Thermostat housing with temperture sensor fitting.

It wasn't the early ones. The Morris Minor, the A40 and the early Mini with the rubber cone suspension were not fitted with a temperature gauge. The 1957 Wolseley and Riley 1500 B Series had the sender in the cylinder head. So if your memory is right and there was an A series with a sensor, then I think you might be looking for a later model.

My guess is the Metro or Allegro, but I don't actually know.

Jim

The Sprite/Midget had a temperature gauge.

Nobody I knew owned one of those, so I never looked under the bonnet of one.

Hopefully someone else can join in and help you. I have gone as far as I can.

Have you had a look on e-bay? There might be someone breaking something that has the right fittings.

Jim

I remember the same. I think it was on our V reg (1979?) Marina 1.3.

I did - but it's so long ago I can't remember where the sensor was. Did the A Series head have a 'flat' where the hole for the sensor might have gone on some versions? Same as the B Series?

Yup - I had a quick look. Just wondered if I could short circuit things by someone knowing what I was on about. ;-)

It's actually to fit injection (MegaSquirt) to a B Series. That requires its own two wire coolant sensor, so the idea was to put that where the gauge one goes and fit the gauge one elsewhere.

I have a vague memory of something similar on the Mini Clubman Special 1275 that my wife owned back in the 80s.

Is this it?

That's the one. Thanks. And the pic helps - IIRC the fixing centres are the same on A Series and B Series.

Incidentally, perhaps the easiest way to do an Ebay link is this:-

You're welcome.

Marina

Well that's what I'd thought too, but reflecting on it I'm wondering if what I remembered as a sensor was actually the plastic cap fitted on those late Marinas with "sealed" systems and no conventional radiator cap.

Errrm I've already posted a link to the part. 1100cc Mini.

I'm aware of that, but it doesn't mean that was the only application.