Okay, so the RR has been a lot of work. Couple of heads, a trans transplant, lots of small details with the cooling system, and yet after all that she is still overheating. I have a temp sender in the middle of the head (between cylinder 2 & 3) and a VDO gauge with numbers on it. With normal driving on the flat she sits at about 200*F, which is kinda high compared to Keith's 110 which sits at 160 - 180*F. Last weekend (as I alluded to in another thread) we took the Rangie into the hills for the first time since the trans swap. Going up Boulder Canyon, the temp started to raise. When it got to 220*C I pulled over to let it cool. Several cooling stops later and we were heading for home. Downhill she cooled right down (as you would expect), to 190*F.
Today I was up in Fort Collins, and on the way home, she started to heat up again. Driven the same road before with no temp raise, but today was pretty warm. So I pulled over to let her cool. Then I had a crazy idea. It took me a minute to check with no tools, and it revealed what the problem has been all along. Simple fix, and cheap for a Land Rover. Had I noticed it before it would have saved me 2 heads and countless hours of frustration.
Anyone want to guess what I found? I'll give you a hint. The first pic is the Range Rover engine, and the second is the Defender engine.
Range Rover: (Something is wrong here)
Defender (This is perfect!)
And no, the AC in the Defender is not part of the problem!
cheers