18-08-2024, 07:32 AM
I’m not sure how relevant my own experience is, Howard, because in my case the car was one of my supercharged specials which behaved rather like your van. With blown cars there are yet more potential causes for running hot and, because the radiator was a modern core which I thought of as new (in fact it was about 25 years old!) I addressed everything else I could think of first, which took quite a long time and made only incremental differences. It was a good thing to do in general but wasn’t the solution. I might say that my IR thermometer showed no cold spots in the core. Eventually I cracked and asked the radiator people locally to check the flow through the core which, it transpired, was very slow. The replacement core dropped the typical temperature in favourable conditions from circa 90c to 78. I could then belt up the long hill on the local bypass for the. Cost of a 2 degree rise in temperature as opposed to the former 8 degrees or more.
In the meantime I had, among other things, improved airflow, made fine mixture adjustments, abandoned antifreeze and added water wetter. They all helped minimally.
It might be worth testing the core but I am sure your suspicions are correct and the core is the culprit. Not cheap to fix if you want a period core, alas.
Good luck,
Stuart
In the meantime I had, among other things, improved airflow, made fine mixture adjustments, abandoned antifreeze and added water wetter. They all helped minimally.
It might be worth testing the core but I am sure your suspicions are correct and the core is the culprit. Not cheap to fix if you want a period core, alas.
Good luck,
Stuart