I believe you, just that I had not had any problems until now. Not that I have really had a problem so far but it looks that with the two mods I've introduced (aircon radiotor in front and higher gearing) things may be a bit hotter this summer and I will have to be careful with Temp.
Thanks for the comment on the influence that my new gearing may have on cooling, I had not thought about it
Yesterday I tested my Defender 110 at constant 68 to 74 mph, along a slight to moderate uphill slope and with 90 degrees F temperatures outside. Engine water temperarture stabilised at 201F while going up hill (for many kilometres) and quickly fell to about 194F when heading downhill.
Depending on the results after this summer I may decide to go the Pendy radiator route next year. I will eventually contact you by private mail if I decide to try one of your radiators.
Thanks for your comments.
a) Yes there is a hose that goes from the radiator top to the expansion tank, and also a 3 way connector that connects to another hose that goes to the thermostat housing (I think, not sure about the last).
b) Expansion tank cap: YES!
I tried an old receipe yesterday: I put the expansion tank cap in vinegar for a few hours yesterday to remove any salts that could eventually be preventing the valve in the cap from working properly. I then washed it thorougly in water and put it back on. I took the truck for a long and +/- hot ride and after returning and letting the truck cool down it worked! Water level came down to normal. I interpret that, as you suggested, it was the expansion tank cap that was botherin!
c) the fan I have is (I think) the one that came with the 2.8 engine in the South american Ford Ranger. I have no shroud
. I cut a little bit of the Defender 110 Tdi plastic fan shroud and put it on top just to prevent hitting your fingers with the fan but the entire 300Tdi shroud does not fit.
I think it has to do with the fact that my defender was a Td5, not a Tdi. I understand that it fits if you install the 2.8 engine in a 300 tdi Defender but I am NOT SURE.
Do you think the lack of a shroud could be partly responsible for the relatively high temperare I got the other day while climbing a steep slope at low speeds?
I do nt exactly understand the function of a fan shroud, it helps cooling when travelling at low speeds?
Thanks for your comments!
Others: feel free to tell me your thoughts, I want to learn!