Thread: county fan

but unless your vehicle is running hot, what would be the point? bigger fan = more drag = less horsepower for turning the wheels...

maybe dave can chip in if there is a difference between 4bd1 and 4bd1t fan sizes in military use?

The reason the gap is there is because it can move around an alarming amount in some cases.

If cooling is a problem with the existing fan, there is a fault somewhere in the cooling system. I have used mine in sustained slow speed heavy pulling in the high forties, with the aircon going flat out, and maybe got as much as the width of the needle above its normal position. The big problem is getting up to running temperature, not lack of cooling - in winter I block most of the grille off, to try and get it to warm up quicker so the heater will work its feeble best.

John

no problem with running hot, i spose i just like to fiddle and try and make things work better. I'm toying with getting some spotlights, which means i'll be blocking part of my grill off, so to get better airflow a bigger fan is the easiest option. Motor does move, but i dont think its anywhere near half that much is it?


Andy

Anyone tried a viscous fan?, would this work?, I'd have concerns about the reliability/longevity and dust/water ingress of a thermo fan, but if a viscous fan fails, doesn't it seize.......and essentially becomes fixed anyway!. Wouldn't you get a couple of extra horses when it reaches temp and free-spools (for want of a better discription).........

Why? Never gets hot even in extreme conditions. Had mine off for a while to see what happened. I was thinking of replacing the engine driven fan with a couple of electric fans to reduce the noise level. Didn't get hot even in 40 degree heat in stop-start traffic.

I know, I know, I know, so why have a fan thats continually turning all the time.........that's my point!.

Originally Posted by EchiDna

but unless your vehicle is running hot, what would be the point? bigger fan = more drag = less horsepower for turning the wheels...

maybe dave can chip in if there is a difference between 4bd1 and 4bd1t fan sizes in military use?

nope same fan.

Yep that engine can move on the mounts enough to let it hit the existing shroud... weve got a couple with rub marks in em at work.. NA's not turbos tho.

Its working DO NOT MESS WITH IT.....

if your county heater is being feeble increase the dose of your cooling system from the nominal 15-20% to 35-40 % after having the heater core flushed but watch for the temp rise... you can cook them up with the increased coolant mix ratios if you use it in summer or work it too hard.... excessively long warm up times are also a sign of your coolant dying IF your using the afloc, tec 50 or oat based coolants, assuming that you were at the upper end of your acceptable coolant concentration level.


also check that the blower motor is making full speed.