Outer Limits 4x4 Board

Often when climbing tracks for sustained periods of time I find my temperature guage rising into the danger zone.

Car is a 94' Triton 4X4 cab chassis turbo diesel with 2" lift.

Radiator, thermostat and water pump are all recently replaced, wondering if it might have something to do with the turbo?

Would a bonnet scoop help by moving more air around the engine bay?
What are the benefits of an inter-cooler?

Another thought was to install a snorkel on both sides, one diverted to the air intake an d the other to the engine bay!

Any feedback would be greatly appreciated,

Cheers.

Hmmmm obviously a 2.5 turbo diesel.
There's something not right there if everything is working as it should it should lug up steep hills in 1st low all day without any drama's (except for probly extremely hot days).
Have you checked the clutch fan ?
At such low speeds thats virtually all the airflow you get so twin snorkels or a bonnet scoop won't make much difference IMHO.
I wired up my A/C thermo fan to a switch on the dash to boost airflow in those situations but it's rare I have to use it (more as insurance).
Mine did the same thing a few years ago and it was the clutch fan (3.0V6). You can buy a new clutch fan assembly from Autobahn for $130 (Powermax brand) Mitsu genuine are around $550

Cheers,
I will get onto that.

Still looking to know more about intercoolers and their pro's and cons?

A turbocharger gets hot real fast when working hard, and heats the incoming air charge, causing it to expand. An intercooler will cool it a little, making it denser, so more oxygen ends up in the cylinder to burn fuel with. That's why they're good.

The only significant downside I know of is the increased air mass between turbine and inlet manifold. This is extra air which needs to be compressed by the turbo, adding to turbo-lag. You don't get something for nothing!

Cheers,

Scott

my NH does the same going to take advice from this forum and get a new clutch fan cant get a power max all out stock but im picking up a davis craig one for $165.00 +gst bloody 2nd hand one's go for around $170.00 with fan

i had the same issue not long ago in my v6 3.0L auto ... turned out to be the clutch fan - once replaced was perfect. But as frank said, doing the a/c fan mod (which i did) is pretty much overkill (i havent had to use it yet)

just my 1.5 cents

oh .. one more thing .. imlachs here in melbourne are pretty good for 2nd hand - mine only cost around $65 + $10 for delivery (so can get delivered australia wide too).

If your a bit short on cash or just wanna see if its the fan clutch you can take the clutch apart put sand, rocks, bolts or what ever that will fit in there and that will lock that thing right up. Did that to my friends 88 never over heated again took for ever to warm up in the winter but never got hot.

I had a clutch fan die on a toyota (not a 4by) some years ago. I used a couple of self drilling metal screws through the clutch assembly, which worked a treat but it sure was noisy!
Cheers, Dean

Hi bennycee
I wouldn't fit a used fan clutch as there is no real way of telling if it is any better than your own, I would hqwever ,if you are thinking of replacing
the coupling, lock it solid and test to see if it solves the problem.
If not ,turbo diesels, show up head gasket/cracked head problems under boost ie under load up an incline. Check the radiator neck for air bubbles escaping from the coolant, this is sometimes a giveaway.
J Top

Are U sure your clutch fan doesnt just need a refill with the right oil .
Fan, if OK should speed up when you increase idle & shut down quick when you snap the throttle shut. If it lags & spins its out.