My recent purchase

[classicgreendog]

[i]

Hi, It's me again.

I thought my problem was resolved but it has re-surfaced, and I have a new query.
On Saturday afternoon I was sitting in a car park waiting to exit when a loud POP was followed by a gush of water and a third core plug had blown.!

I spent all day today re-fitting a new one and checking the thermostat etc.,

The car was running OK - The temperature was sitting nice and steady at 40 degrees, and I had set the Kenlowe to cut in at 45 degrees.

I am mystified.

I let the car tick over until the temp was steady, and made sure the Kenlowe cut in etc., which it did.

I checked the rad cap and it was duly stamped 15 degrees.

However, and this is my query. Having reached operating temperature I was surprised that I was able to remove the rad cap without any pressure or steam blowing out. In fact there was no pressure obvious at all ??

Very different to my Daimler 250 V8 where pressure is very obvious and water is expelled out of the overflow pipe.

Why haven't I got any pressure at the rad cap ? - and is this why the core plug is blowing instead ? The pressure is at the bottom of the engine instead of at the radiator top ?

Any ideas guys ??

Regards,
MIKE