Patrol radiator

mine is the same set up as yours ive never had any problems with heat even in soft boggy beach work at 38c out side tempgu bush basha

Peter, there has been a lot of recent postings about the 4.2T/D overheating and nobody has posted a sure fire fix to date. The matter has been discussed at some length, but I suggest you read Posts # 9668 & 9700 to give you an idea of what's been discussed before. Basically, it seems to be agreed by most owners who've spent some time on this problem that the answer lies either in the radiator itself or the viscous fan. Some have said they've tried aftermarket fans which have not worked. Others have said the genuine Nissan fan is the way to go. I got a price from local dealer today; $387- (+ labour etc if you need it fitted). The radiator I spoke about above, is the way I was going to go using my own local radiator bloke here in country SA (Kadina/Moonta). However, he has never made up a new radiator from scratch for a 4.2 Patrol before and was going to do it in brass with 3 cores. The bloke at PWR seemed to understand my problem when I phoned him. He said the problem is well known to them and they've spent a considerable amount of time developing this fix. If you look up their web site you'll see that they specialise in high performance radiators, intercoolers etc. The vehicle featured in 4WD Monthly that I mentioned certainly seemed to be very well sorted out (for competition by the looks of it). So I imagine that if the new alloy radiator works well under those trying conditions, it should work as well for a touring hack like mine which would be operating more in line with how a diesel was destined to be used. If anybody reading this has used one of these alloy replacements in their truck, it would be nice to hear from you.

One of the Magazines did a test on the 4.8 4.2td and 3.0td and noted the increase in temp on the 4.2td while sand driving and this is in a new vehicle. They commented that it was a smaller radiator than in the 3.0. As a previos post of mine suggested dont believe all you read but perhaps there on to something and the 4.2 is simply underradiated and may benifit from a 3.0td radiator if it will fit (probably not cheap either)

My biggest problem is living in inland WA ,in summer we often get temps over 40dec ,the other day it was 47dec so if towing and using the aircon it dosnt take long to get hot .I wonder if the missus would mind shifting to the coast ?I will tell her its to save buying a new radiator (plus I could get some more fishing in so our food bill would be less) LOL99 GU Patrol 4.2 TD
Peter York 4x4

Eric,
Sorry if I've mislead you. Mine is a ST wagon, not a cab chassis; but that would a great idea for the ute owners to consider.
I'm nowing going to be hanging on to see how GOLDFINDER gets on once he's done some tests. Jeez, Goldfinder, you don't waste much time making a decision.....good luck and hope it works real good. Did you say in a previous post whether or not you've already installed a new Nissan fan?
Roachie

No Roachie I haven't installed a new fan. Nothing wrong with the original one. BTW paid for the new rad from PWR today.

Michael,
I've already done the 3" mandrel bent exhaust trick (with small hotdog muffler and no catalytic converter), but she still gets hot. The intercooler is another option, but opinion seems to vary among the "experts" as some say the extra air able to be crammed in to the combustion chamber, thereby increasing the size of the bang, actually increases the engine's operating temperature. Who are we supposed to believe? Not doubting you at all Michael, as I suppose every vehicle has it's own little idiosycrancies (cripes I hope I spelt that right!!), and they react a bit differently to each other. Looking at mine again today with a mates side by side, we checked the viscous fans on both with the engines cold. His had a noticeable amount of increased drag when we turned the fans by hand, so the fan probably needs to be replaced or at least serviced to get it operating properly.
Thanks,
Roachie

I your viscous fan is not working then nothing will keep it cool, a new one may solve your problems. If the vehicle has always had heating problems then checking the pump timing might help.