Word. Dealing with this a bit too currently. Lotsa stuff in front of the radiator for sure. Last weekend I swapped the new blue hub fan clutch for a new modified orange hub clutch. Also took the opportunity to foam seal between the radiator and shroud. Definitely made a difference on a short trip over the same pass yesterday. It recovers quicker after hills and keeps the temps lower overall. Now have the blue, green and orange hub'd units on garage the shelf. Colorful! It is possible to modify the blue hub unit and add thicker viscosity oil to probably get you where the orange hub gets yah... but thought I may need to swap back for winters. So opted to just order another for my collection. Super long thread somewhere on the 80 series forum on modifying it.Ok, so back to today's scheduled programming... I KNOW I read somewhere that some people have issues with their rigs overheating... usually it is the PRADO's with the KZ motor in them, but I have read where some folks with the HZ have some issues with running too hot.
Thankfully this Land Cruiser was not one of them, but I have noticed, after intercooling the turbo, on a really hot day (30C+/86F+), with the AC running, and working the cruiser pretty hard (lot's of hill climbing while maintaining 120km/h, or pulling a trailer) the engine temperature starts climbing. What I figure is causing this is the simple fact that the RAD is now 3rd in line for the precious cooling wind coming at it through the front grill. The intercooler gets it first and this is quite noticeable as I can keep my foot into it and the EG's never seem to go above 1150F. Then the AC condenser is next in line for the air, and finally, after it has been twice warmed, the radiator is last in line.
For now, I can cope with this by turning off the AC and downshifting to raise the RPM's and lighten the right foot. But now on my radar will be a larger custom rad that would fit with the intercooler solution that I have put in. If anyone has some experience and wisdom and some real life results that would be splendid to hear! Thanks in advance!![]()
Or >
HD Fan Clutches - https://landtankproducts.com/products/hd-fan-clutches?variant=37793069334694
- Brian