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[smokingomega]

I`m the same. I just want a good cooling system.
I tow quite a bit and found my temp goes right up on hills then drops when on the flat.
I thought it was ok because it never actually went into the red but after TheBoy advised that the gauges lie, I`m a bit more weary now.
Though it has never been a problem in the past and the car has done a fair few miles towing, I have still that slight bit of doubt now something is going to let go.
Don`t know what to do?
I know they put these engines in the rangerovers, surely there cooling system must be better than the Vauxhalls as these weigh nearly 3 tons

[Seth]

I`m the same. I just want a good cooling system.
I tow quite a bit and found my temp goes right up on hills then drops when on the flat.
I thought it was ok because it never actually went into the red but after TheBoy advised that the gauges lie, I`m a bit more weary now.
Though it has never been a problem in the past and the car has done a fair few miles towing, I have still that slight bit of doubt now something is going to let go.
Don`t know what to do?
I know they put these engines in the rangerovers, surely there cooling system must be better than the Vauxhalls as these weigh nearly 3 tons

The Range Rovers that were fitted with this engine were also prone to cooling system problems, and the hot-start issues too.

[smokingomega]

Looks like there`s nothing much that can be done. Might have to strap a truck rad to the front end!!!!!

[TheBoy]

As most tractors have been abused by insufficient servicing in their previous lives (4.5k maximum oil change interval), thats a good place to start. Give it a good oil flush using a decent flushing additive.

Also, the rads tend to silt up around 120k, so the rad may need some severe treatment.

Then round it off with a good cooling system flush, using Forte or similar (Holts type products aren't much good at this).

Lastly, if applicable, ensure intercooler fan isn't seized!!

[smokingomega]

My intercooler fan is seized!
Would it be better to just ditch this as I can`t really see it actually doing much when it is working.
I might give the rad a good steam clean out.. I`ve given the engine a good flush out, and I change my oil for fun as I get it free from work .

[platty]

My intercooler fan is seized!
Would it be better to just ditch this as I can`t really see it actually doing much when it is working.

I whipped mine out and it was solid. If you can get the circlip off the outside and knock the fan off then you are able to drip some oil down the shaft and leave it to soak over night.
Next day, hold the shaft in a vice and with some oil just keep rocking it back and forth until it is unseized.
Once it spins more freely, then run it across a battery for a while and it will get faster and faster until it is fully operational again.
I have just done this to mine, will hopefully have it back on the car in a week or so and see if there is any difference - or if it ever comes on for a start!

[Omegatoy]

the boy was wih me when i ran diagnostic live on the inlet temps with fan off and fan on(mine is wired through a switch on dash for better control) and the difference with it switched on is very noticeable, i.e. try 20degrees difference!!! so when the car is approaching a long hill or something i switch mine on and obviously the ecu detects the cooler incoming air and adds more fuel, the car sails up the hill no probs!! also makes a difference at low revs when has been in trafic etc!!where the i.c. is not being cooled by airspeed through it,
in my book its definetly worth having it !!

[smokingomega]

That sounds a good idea wiring it into a switch as I have heared people say that they have never known them cut in at all in normal operation.

[TheBoy]

That sounds a good idea wiring it into a switch as I have heared people say that they have never known them cut in at all in normal operation.

One of the probs with running viscous is the electric fans don't cut in at slow speed, meaning the intercooler fan doesn't either, resulting in it seizing (poor location)

[smokingomega]

so would you remove the viscous or the intercooler fan?

[TheBoy]

so would you remove the viscous or the intercooler fan?

Errr, guess what I'd remove

[Spearmint]

I don't think I have an intercooler on my car so the 2 fans at the front must be aircon?

[Omegatoy]

I don't think I have an intercooler on my car so the 2 fans at the front must be aircon?

Its bolted to the rear of the intercooler, under a rubber shroud that sits between the i.c. and the front bumper! pull the shroud off anf you will see it, but would guess the 99 car would have it, only the very early ones didnt!!

[Pitchfork]

I don't think I have an intercooler on my car so the 2 fans at the front must be aircon?

Its bolted to the rear of the intercooler, under a rubber shroud that sits between the i.c. and the front bumper! pull the shroud off anf you will see it, but would guess the 99 car would have it, only the very early ones didnt!!

My 96 one has it because I replaced the seized fan

[smokingomega]

The intercooler is on the drivers side behind the vent on the front bumper. the oil cooler is at the other side