Had to have mine replaced by SE ages ago but the reason I'm posting this...I did a search back through the old forum and noticed that the fan failing was quite common.

 

My car is UK spec but beware on your Jap Imports, my old man bought a 2.4 HiLux Surf with only 45K miles on it and a few weeks after he got it it started overheating and spitting coolant out of the expansion tank.

 

So he took it to his garage who pressure tested the system and said it was all OK. But it was still playing up.

 

So off it went into Toyota who thought that the viscous fan was the problem, which it was. But, and here's the relevant bit, the fan coupling for the Jap cars only has fluid in rated to the Jap speed limit of 50mph. So what happens is they come over here after an easy life chugging around in Rand of Lising Sun and the fluid gives up and the fan slowly starts to seize and the next thing you know is your heads are warped, head gaskett fails and it costs you a fortune to rebuild the top end!

 

Now I am not saying that this is the case with the 300 but it would be worth thinking about, lower speed limit in Jap land? Viscous fan that might not be upto the job?

 

Food for thought!

Yes I am missing the sub fan relay from the fuse box in the engine bay. When i turn off my engine the temp rises to over 100c! So the fan is definatly not working!

 

I have managed to get a new relay but not plugged it in yet. I'm wondering if its missing to hide bigger problems with the fan etc. I'll soon find out!

 

Where exactly is the sub fan on the z that should spin to stop the engine cooking once you turn it off?

Had to have mine replaced by SE ages ago but the reason I'm posting this...I did a search back through the old forum and noticed that the fan failing was quite common.

 

My car is UK spec but beware on your Jap Imports, my old man bought a 2.4 HiLux Surf with only 45K miles on it and a few weeks after he got it it started overheating and spitting coolant out of the expansion tank.

 

So he took it to his garage who pressure tested the system and said it was all OK. But it was still playing up.

 

So off it went into Toyota who thought that the viscous fan was the problem, which it was. But, and here's the relevant bit, the fan coupling for the Jap cars only has fluid in rated to the Jap speed limit of 50mph. So what happens is they come over here after an easy life chugging around in Rand of Lising Sun and the fluid gives up and the fan slowly starts to seize and the next thing you know is your heads are warped, head gaskett fails and it costs you a fortune to rebuild the top end!

 

Now I am not saying that this is the case with the 300 but it would be worth thinking about, lower speed limit in Jap land? Viscous fan that might not be upto the job?

 

Food for thought!

i [osted this a while ago,easy trst,the 300 fan normally whines when it fooks up bit like the misses indoors

 

basic principle is the fan should have some resistance when cold if you try and turn it,if it spins freely its proper foooooked,and as said when the rpm is increased the fan does not operate at same speed and in traffic it will spin slower than your idle rpm

How do you fix this Greg? what parts etc are requires?

 

cheers

How do you fix this Greg? what parts etc are requires?

 

cheers

 

no fix,just replacement viscous fan just the clutch not the fan blade,

thanks

What about putting a kenlowe fan on instead? id like to hear people think of the kenlowe fan and whether or not it would be worth replacing the viscous with one

What about putting a kenlowe fan on instead? id like to hear people think of the kenlowe fan and whether or not it would be worth replacing the viscous with one

 

Search is your Friend!!! I've done the Kenlowe install... Type it into Search and read my previous post!!! ;)

What timmy is saying though is that it may be that the Jap specs has a lower Viscous rate than Uk specs, hence a possible weak point in the Jap spec cooling system.

i [osted this a while ago,easy trst,the 300 fan normally whines when it fooks up bit like the misses indoors

 

basic principle is the fan should have some resistance when cold if you try and turn it,if it spins freely its proper foooooked,and as said when the rpm is increased the fan does not operate at same speed and in traffic it will spin slower than your idle rpm

 

Unless the car is hot mate then the fan will be spinning the same speed as the engine. i.e in traffic ;)

Swapping the Viscous fan for a Kenlowe would be benificial for power. But you would have to have one powerful enough to cope with the heat a zed puts out.

What timmy is saying though is that it may be that the Jap specs has a lower Viscous rate than Uk specs, hence a possible weak point in the Jap spec cooling system.

 

the only differance,is uk cars have a bigger pulley wheel on the waterpump,so in therory it spins more RPM than a j-spec so yes that correct,wether it makes a differance i doubt it

Unless the car is hot mate then the fan will be spinning the same speed as the engine. i.e in traffic ;)

 

of course it spins with the engine its belt driven,but when the viscous looses viscosity,then it will not keep up with the engine momentum,hence why it may not be up to the job in traffic