A few months I posted a query about my RRC overheating and pressure build up. To recap, I'd just bought it (it was cheap!) and it started to overheat on the way home. Needle stayed just under the red all the way. Occasionally when using it locally it boiled over through the expansion tank. Not good. When cold, it would start to overheat after about 10 mins.
To date I have carried out the following:
- replaced expansion tank cap
- replaced thermostat (didn't have a toggle-y thing on it like the old one did, but it was supplied by a LR specialist near to me so it must be ok....)
- replaced both head gaskets
- replaced waterpump.
I used it on a 40 mile journey over the weekend for the first time, involving motorways and A roads. The temp needle didnt go past half way at all, however the cooling fans at the front were on, so it was getting a bit warm but not to the extent it was before I did all the work. And when i was in the queue for the lights the needle did start to creep up but then once moving, it went back down again.
The coolant level in the expansion tank is at the same level as I have been checking it daily after a run (when cold of course!) No cross contamination that I can see.
Any suggestions as to what could be causing this extra overheating? I haven't yet tried a reverse flush on the rad because it looks complicated to remove, what with all those oil coolers etc..
TIA.