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I Supported Toymods
Location:
melbourne.vic.au
Registered:
May 2002
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HELP! MA61 Overheating
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Wed, 11 December 2002 22:30
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Hey All.
As the title states. My car is overheating and don't know what to do. Is it better to stay on the original Fluid Couple Fan or remove the OEM Fan and go Electric Thermos?
If Electric Thermos, is there such a kit avaliable which can be bolted up to my MA61 with the 5M-E motor? I heard it would be a bugger of a job trying to install the Thermo Switch to tell the fan to turn on and I really don't want a manual controlled fan because you can always forget...
Cheers.
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I Supported Toymods
Location:
melbourne.vic.au
Registered:
May 2002
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Re: HELP! MA61 Overheating
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Wed, 11 December 2002 23:00
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Also i forgot to mention is that the car has had it's radiator replaced, system flush out and thermostat replaced.
And no... I haven't blown the head gasket. The Couple Fluid clutch is dead, when the engine is HOT the fan can freely move in round circles not drawing in air when it was meant to have a lot of resistance especially when the engine is on sucking air from outside in.
Cheers
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Location:
Southern Sydney
Registered:
August 2002
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Re: HELP! MA61 Overheating
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Wed, 11 December 2002 23:01
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Is it overheating in traffic or while driving?
If its while your moving then electric thermo fans probably won't help much.
Look at your original equipment and find where the problem is before you start replacing stuff.
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I Supported Toymods
Location:
melbourne.vic.au
Registered:
May 2002
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Re: HELP! MA61 Overheating
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Wed, 11 December 2002 23:20
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Its usually after a long run and the car is slowing down to 60kph in traffic the temperature creaps up.
I usually try and find clean uninterupted air to drive to keep the engine cool but during rush hour... no hope.
Cheers.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: HELP! MA61 Overheating
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Thu, 12 December 2002 00:27
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The fan in my Celica isn't working great, my mechanic said the fluid they use in the fans loses its viscous effect. You can get a new bottle of fluid from Toyota, remove it and fill it up.
The factory fans work pretty well so I'd be thinking thats a good option.
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Location:
Southport
Registered:
November 2002
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Re: HELP! MA61 Overheating
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Thu, 12 December 2002 00:49
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if you can find thermos that fit, i would look at removing the fluid fan and fitting them. if you can't work find out the wiring for the fans, i would see my local repco dudes and pick up a thermo switch and get it mounted into the cooling system somewhere. I would recommend near the thermostat, but it might be cheaper to have a radiator dude fit it into the radiator.
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Location:
Brisbane
Registered:
May 2002
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Re: HELP! MA61 Overheating
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Thu, 12 December 2002 08:48
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The factory clutch fan works brilliantly if in good working order. I wouldn't bother with electric fans unless you have a good reason for it (eg engine upgrade). Just find another clutch fan that works.
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Location:
Yeppoon/Rockhampton
Registered:
September 2002
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I Supported Toymods
Location:
melbourne.vic.au
Registered:
May 2002
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Re: HELP! MA61 Overheating
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Thu, 12 December 2002 14:47
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That is great!
Thanks for the reply guys. I am keeping the Fluid Couple Fan and going to replace it hopefully by Saturday.
I am keeping it because going Thermos is too much messing around.
My Pump is Working Fine, I had the system Pressure tested and passed with Flying colours. Its just the fan 
Cheers.
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Location:
Sydney
Registered:
May 2002
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Re: HELP! MA61 Overheating
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Thu, 12 December 2002 20:50
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Hey mate,
i think i have one these off a 5m at home..
Email me.. im in sydney
Corvidcee@hotmail.com
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I Supported Toymods
Location:
melbourne.vic.au
Registered:
May 2002
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Re: HELP! MA61 Overheating
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Sat, 14 December 2002 07:47
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Just replaced the water pump, Fan and a full flush out of the radiator.
Greater trouble is that i may have damaged head i think or done a gasket though my oil is not going milky and either is the radiator fluid.
At the moment i loose a lot of radiator fluid through the reserve and when i run the car. With the radiator cap off i can see the water bubbling air.
Can anyone elaborate what is wrong...
Cheers
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Location:
Yeppoon/Rockhampton
Registered:
September 2002
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Re: HELP! MA61 Overheating
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Sat, 14 December 2002 09:40
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when you change your radiator fluid you should have the car running and keep topping the radiator levels up. place your hand over where the radiator cap would go and hold it down for 10 secs. then take it off. bubbles should come out... do this for about 5 - 10 mins.
this way you get all your bubbles out of the water system.
keep your overflow thingi at 1/2 level.
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Location:
Southport
Registered:
November 2002
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Location:
Yeppoon/Rockhampton
Registered:
September 2002
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Re: HELP! MA61 Overheating
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Sun, 15 December 2002 10:21
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i enquired about getting thermo fans for my radiator. but the guys said not to worry about it as the fan works off a clutch. it's not spinning all the time so doesn't use any extra power.
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Location:
Southport
Registered:
November 2002
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Re: HELP! MA61 Overheating
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Sun, 15 December 2002 10:36
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the guy who said the clutch fan doesn't use extra power was only giving half the story.
Of course when the engine is cool, the fan does not spin, these fans can either be fulid filled, or a temperature controlled spring. both do the same thing, when the temp rises, the fan is made to spin and at this point, there is now (minimal but) extra load...
so unless your fan knows it is time to race, (chances are you've been cruising round for the right falcon/holden/torana/escort/excel/lancer to blow, on the right strip of road), the cluch fan is engaged when it comes time to drop the clutch.
Tell the guy that explained clutch fans to you that next time he should tell the whole story. the fact is and i'm not being rude, just a smart ass, anything attached to the motor via a fan belt uses power. but if you aren't out to beat anyone, sure stick to the fan, I wouldn't.
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Location:
Brisbane
Registered:
May 2002
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Re: HELP! MA61 Overheating
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Sun, 15 December 2002 23:54
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Has it occured to you that an electric fan also places a load on the engine? Sure it's not directly attached to the crank, but it uses a fair amount of juice. And guess where that power comes from? The alternator, that's where!
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: HELP! MA61 Overheating
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Mon, 16 December 2002 00:05
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| ZZT231 wrote on Sat, 14 December 2002 18:47 |
Just replaced the water pump, Fan and a full flush out of the radiator.
Greater trouble is that i may have damaged head i think or done a gasket though my oil is not going milky and either is the radiator fluid.
At the moment i loose a lot of radiator fluid through the reserve and when i run the car. With the radiator cap off i can see the water bubbling air.
Can anyone elaborate what is wrong...
Cheers
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BHG..... 
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Location:
Southport
Registered:
November 2002
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Re: HELP! MA61 Overheating
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Mon, 16 December 2002 03:08
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| Norbie wrote on Mon, 16 December 2002 10:54 |
Has it occured to you that an electric fan also places a load on the engine? Sure it's not directly attached to the crank, but it uses a fair amount of juice. And guess where that power comes from? The alternator, that's where!
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Yes, but it is a much smaller load... I have read this in mags. and everything you read is true... but note earlier i did mention the alternator, and said when i raced, i took it out.
but look, don't listen to me, the guy's replaced the clutch fan anyway.
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