Hi Guys
I thought I'd post this in here aswell, in case any of you Disco boys (and girls) had any solutions.
I've been having a problem with my 200tdi (Defender engine) 110 running hot for a while now.
It never actually overheats, but on a sustained run (20 mins or more), the temp gauge sits just below the edge of the white.
On a run on the motorway, if I travel at 50-60, the temp creeps up, but if I run at 65-70, it sits at or just below the top of the white and doesn't move (I got down to Billing and Malvern along with 2 runs to Shrewsbry and back from here in Derbyshire with no problems).
After a short but fast run (plenty of turbo use), the top of the rad is hot and the bottom (and water in the expansion tank) is almost stone cold.
My first thought was a faulty thermostat (not opening properly and restricting flow). I took it out and tested it and it works perfectly. While I was checking the thermostat, I flushed the radiator. This seemed to be clear (got a bit of gunk out, but not much) and the water flowed freely.
I assume from this that the water is not circuilating properly. The only causes I can come up with other that the thermostat are, either a dodgy water pump or a blockage in the system (in the Rad or elsewhere).
Can anyone shed any light on what the problem might be and any solutions.
Thanks
