80 series getting hot and poor fuel consumption.

The man is appealling for help,not sarcasm.
Oh oh ,heaven forbid you are not serious are you LOL

I assume your at a loss to why this is happening also????

I was not being sarcastic
____Hyclones work ____
ask anyone with one installed

a compression test would be the first thing on my list of important things to check.

I am interested as to why you would suggest to check or have the following items, the car has been on a dyno with a pyro and it hasnt been blowing smoke, the performance is good and if the water pump was u/s i would assume it would overheat constantly, it has always been ok as long as you slow down and let it cool.. thanks acca

Can you hear the viscous fan cutin when it starts to get hot?

Maybe also check the camshaft and pump timing marks if the belts been changed they may have got it wrong!

Always check the basic simple things first before jumping in the deep end!

Thanks for your input stefan the new radiator had a new cap and its a manual transmission, as to wether the fans running all the time no ones game to stick there head under the bonnet..

cheers Roughneck but no bug deflectors or anything unnecessary in front of this problem child..

Cheers ross now im getting into some interesting information, the car has never run right since i have owned it in the last three years, im the second owner and the first owner fitted the turbo etc so i dont have much of an idea as to how it was setup but i have contimplated throwing some injectors at it but i am concerned that it will be money wasted as it doesnt blow smoke etc????the last person i spoke to suggested a compression test which i will carry out in the next few weeks because i have access to the testing equipment. The last thing i was hoping to not have to do was to fit a new pump as well. I am in an isolated town and bench testing doesnt happen unless you want to go without your car for a few weeks but if thats what it takes???

Isolated town - where?

Tmac ,Have you or anyone else checked to see if the pump is on its timing marks correctly.
I paid about $450inc GST to have a 1HZ pump stripped,cleaned and calibrated.
It had been sitting around for 4 years and the diesel inside had dried up.

Anyway with your problem, I suspect the PO or the person who installed the turbo has been fiddling with the pump for more power.
Injectors are normally serviced every 100000 klm I think so it may be time .
Normally costs $50-60 each and they can be mail ordered and you send the old ones back.

Drew the viscous fan only works under about 40kph and then it turns itself off and would not be any help to Tmac as his problems of overheating are occurring at 110kph+.

In city driving a good viscous fan clutch is essential.
For the cost its better to buy new than refill. Ive been told that the spring inside is heat sensitive so if thats not working refilling is pointless.

Fan only works under 40kph LOL!

Ross where/ who told you the viscous fan only works under 40klm ??? What a load of crap whoever told you that. They will work at any speed depending on radiator temperature. The spring at the front of the viscous coupling detects the temperature of the air flow through the radiator then locks in when required wether doing 20klm or 120 klm. 9 times out or ten you will here them cut in at higher speeds eg running air con and pulling up hills when really working the motor. I have just replaced myn on the old lux and even over the clatter of the old 2.8 you can still here the fan cut in at 100klms if it needs too. I think some ones been telling you porkys no offence to you. Regard Steve M

"Fan only works under 40kph LOL!"

What speed do reckon it cuts in/out? I can hear mine and it is a new OEM clutch.\
Maybe you string a reply longer than 3 or 4words and inform everyone exactly what happens.

The whole idea is for it cut out and save fuel when it detects enough airflow.
Toyotas have different clutches for different engines and I think the colour indicates which one you have.
My 3F and both my 1HZ cut out at low speeds and none have a cooling problem.
My HZJ75 just did 2500klms in 30-40c temps

At 120 kph I doubt the fan could pull air faster than it is being rammed through

Hi Ross,normally when you start the vehicle in the mornings you will hear the fan roar few maybe 10/20 seconds then it will fade out and it will only cut in when required. If you start your vehicle first thing when cold and you are not running air con which will transfer heat through the condensor which the clutch coupling will pick up and start to lock your fan in and you can still hear the fan roaring after say even a minute then the coupling is faulty. I was lucky with the hilux as mine was locked on permanately and was roaring its nut off all the time also decreasing my power which I need every bit I can get in a 2.8. Since fitting the new coupling the fan fades out in the first 10 seconds then I wont hear from it unless I'm running air con or pulling up mooney mooney or the hawksbury which is when I will hear it start to wind up which is normally right towards the top and at a speed of about 90klms flat to the board in 4th gear. The fan will always be free wheeling otherwise when not locked in. Regards Steve M

Yes that is the idea it to cut out to save on power but even air flow alone is not enough some times. I had the exact same problem with my VL commodore years ago going down m4 from penrith and would start to heat up on me pop bonnet check clutch fan and was roaring away so didnt think that was the issue untill I stuck a plastic spatular on the fan blades (decided not to use my hand) and could actually stop the fan with this which is meant for turning over eggs. Bought a brand new one and no problem. Was only last month that I was going to get the old girl turboed and he was asking about my clutch fan and he told me they load them up on the dyno 2 tests (1) with out there electric fan in front of the radiator they load it up and run it at 100klm to make sure that the clutch fan cuts in (2) then they do the same test with there electric fans turned on but load it up even more to get the engine working its arse off so they can set the fuel pump and turbo up properly and to also make sure that once again clutch fan will cut in and they said it would when it is loaded up like it would be as they have even had to fit new clutch fans to there customers cars otherwise they would have heating issues with the addition of the turbo. He told me the worst out of all the vehicles were 80 series cruisers they stuff up alot. Even our commodore which we just sold which had twin electric thermo fans (factory fitted main cooling fans) even on a 44c day coming down the m4 they had 2 speeds slow which were when air con was on the other for maximum cooling I could here them from inside the car at 110 roaring there nut off sucking the air through to keep her cool which it did. I know that these are electric and not viscous but just showing that even at 110klm it needed the electric fans to cut in to cool her down. Regards Steve M