Thread: Cant take much more ! Overheating again and again

Originally Posted by Avrio

slipped liner...does anyone know who can test this for me melb northern suburbs ?

I would chill a bit and not think so dramatic ....
I answered and gave you a suggestion on that "Disco thread" ... (disconnect the heater and refill it up on ramps) ... so check it out

If it's a worst case
Slipped liner is a visual thing to see & check // must take heads off

Head gaskets are easy & inexpensive to do, compared to a new motor


I'm in Perth WA .. can't help on Melbourne mechanics

Mike

Originally Posted by scott oz

OK,

I’m confused. I was under the impression that with the viscous fans that they would “spin” naturally. When I start my 2001 TD5 the fan “spins” but I can stop I with a brush. I was under the impression that if on start up you couldn’t stop it with a brush the vicious coupling was stuffed because it was “locked in”. Basically if the fan “spins” and you can stop it when cold it’s OK. If you motor is hot above operating temp and you can stop the fan with a brush it’s similarly stuffed?

yeah the advice i got here was that if you can stop it with a brush then the viscous needs replacing..it gets worn over time.
Someone said here that if the fan is turning its ok but i have not found that to be the case.
Put it this way when the new viscous went on a cloud of dust blew out of the engine compartment.
You'd have to do a test in stop start traffic to see if your fan is good enough, mine was fine whilst moving but engine slowly overheated when in traffic.I have already had replaced the rad and the thermostat.
Now when the temp gets halfway the viscous roars and brings it back down under half on the guage

Originally Posted by PAT303

With the engine at operating temp put a paint brush against the fan,it shouldn't change speed,if it does you have your problem. Pat

forgot to thank you for this post Pat , whilst SPUD suggested the problem you offered a way to check it. Many thanks

steve

No worries mate. Pat

Hi Avrio,

Looks like this week of hot weather will be a real test for your cooling system! If you experienced a cloud of dust from the radiator after the new VC was fitted, this can possibly mean that there's probably a lot of blocked fins on either your engine radiator or your a/c radiator. Especially if you've "visited" a number of muddy bog holes.

You might want to fashion yourself a radiator cleaning wand and use it to flush out your radiator - when I did this a couple of years ago, I was totally amazed by just how much crud had completely blocked the lower third of the a/c radiator *and* the engine radiator.

What happens is that when you go into a muddy bog hole, the heat of radiator fins dries up the mud and this bakes it on. Over time, more and more of the bottom fins get completely starved of air.

Since you are in the eastern suburbs of Melbourne, if you want to borrow my radiator cleaning wand, feel free to contact me via Private Message.

well all s been running well since the new fiscous fan , got my mate to Tee kay and pressure test the system. Tee Kay colour didnt change at all ! Great !
several leaks were found in hoses that hadnt been tightened since my new rad went in..thanks guys..didnt you have breakfast that day ??

ALSO my 9 mth old expansion tank lid wasnt holding any pressure
whatsoever.

Total cost - 1 long lunch, a six pack and 19 for the new lid .

I really hope i dont have to post any more on this but WOULD like to thank all contributors who have managed to solve the problems that 4 mechanics missed.

Deeply humbled and a special thaks to MikeRR and to the guy who sent the piccies
cheers..if you ever need a good therapist ...

tempestV8 , thanks a lot but The radiator is 8 months old ...the only muddy bogs i go to are the ones at the local shopping mall...ashamedly a city tractor boy, but hoping to move to the bush soon.