My datsun dies out.

[HelloLawrence]

I have a 1976 Datsun 280z, I've had it since I was 16 I'm 25 now and it's a great car. I've been all over the western United States from Los Angeles to Vancouver, b.c. Canada. I live in california, Oregon, and Washington and my z has been there with me every step of the way.

Now I have a problem. My z starts, runs great until it gets hot. It dies out once it gets over heated. I got a new aluminum radiator that I thought would keep it cooler but it doesn't seem to. The weird thing is after the z cools down it starts up like a champ. Oh yeah outside its 102 degrees. I'm sure that plays a part.

[Cammy_01]

Define overheat? Is it over heating? Sounds like maybe vapor lock where the fuel gets hot before it enters the carbs and is a gas rather than a liquid.. I assume it is carburated, an old trick is to put a couple of wooden cloths pins on the fuel line before it enters the carbs

[HelloLawrence]

My temp gauge is broken so I'm not absolutely sure if it is over heating. It's happened again last night while driving. It putters while I'm driving, then I rev the engine and it powers through the puttering and drives but I feel if I stop revving my engine at a stop my car will die and I will have to wait for the z to cool down to start again.