Originally Posted by
OrionRST200bhp
Flushing system this morning. I will say that when running the radiator stays cool nearly Ice cold. And all the pipes around the engine get hot as hell. The header tank gets hot really quick. I'm going to check all pipes later for debris etc. thermostat is brand new but will check that as well.
Sounds like the rad could be blocked, had the same prob on mine. Take the pipes off the rad and run a hose pipe from the top of rad and check the flow coming out the bottom. Do the coolant hoses feel pressurised when it's hot?