Hi all, I've just finished building my s14a with a blacktop SR in. I've got a very annoying problem with the temp gauge rising when it's being driven or revved a bit.
First noticed it when on the motorway, I had to be somewhere so I put the heaters on full and it kept it from overheating somehow (although it did get close). On the return journey i did have to turn the car off and pull over because it just got too hot.
SO I've changed out the thermostat and bled+flushed the coolant system multiple times with multiple methods now to no joy. It's got a standard rad, nismo 1.1 bar cap, standard viscous fan minus the cowling.
Things to note;
No mayo under the oil cap
Bottom hose never gets hot with either new or old thermostat in
Heaters get and stay hot
Pump has been off and checked, all good
85% of the rad is cold, just the top closest to the top hose gets hot
Please help!