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Location:
Melbourne
Registered:
May 2002
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Location:
tas
Registered:
June 2002
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Re: MA70 thermo fan install
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Sat, 08 November 2003 09:07
 
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nice work there, i'm at a stage where i'm going to have to do something about my fans, as they never come on and just let the engine temp keep climbing. not good.
By the way love the photo with the bit of wood holding your bonnet up, i use a branch myself, dam gas stuts or whatever not doing there job, my bonnet has hit me on the head so many times becuase of those things.
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Location:
Melbourne
Registered:
May 2002
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Re: MA70 thermo fan install
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Sat, 08 November 2003 10:08
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yes and the bonnet struts new cost more then engine mounts! EACH!
gota get em re-gassed one day
Allan
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Sat, 08 November 2003 10:10
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i wouldnt spit about au thermos ay...they're some of the best around!
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Sat, 08 November 2003 10:13
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id like to know more about the corolla switch though...i need one also! But a bit of advice from me, which i got from norbie also, is to have the fans hooked up via a thermal delay relay after the car is shut down..turbos espec can have heatsoak problems (i.e the coolant boils after the engine has been shut off). Im also doing this with my 8...
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Location:
Melbourne
Registered:
May 2002
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Re: MA70 thermo fan install
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Sat, 08 November 2003 10:34
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Yes there made by bosch not ford thats why 
I would not bother with the corolla switch on anything but an MA70 due to the fact its a direct replacement for the money get a davies craig adjustable one!
Allan
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Sat, 08 November 2003 14:27
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how much would i be looking at?
What i need is:
Thermal switch - so fans switch on/off automatically via temperature operated sender switch.
Thermal delay relay - so when the car turns off, the fans stay on to bring the temperature of the water down.
Are both of these available from davies craig?
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Location:
Brisbane
Registered:
May 2002
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Re: MA70 thermo fan install
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Sat, 08 November 2003 23:07
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All you need is a thermostat. I'm not sure where you got this thermal delay concept from!
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Location:
Mildura
Registered:
May 2002
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Re: MA70 thermo fan install
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Sun, 09 November 2003 10:40
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Tridon make a heap of different switches.
Which personally I think are a heap better than those stupid adjustable one with the probe you have to stick somewhere.
I run a single 16" fan with a 80-85deg switch and it works fine.
As for the bonnet struts Monroe part No ML4337 $51 + GST My regassed ones never worked this good.
They also fit MA61 I think.
Marty
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Location:
Lost in the K hole
Registered:
May 2002
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Re: MA70 thermo fan install
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Sun, 09 November 2003 11:20
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i just pulled a Nipon Denso 85deg switch out of a magna today at PNPL... cost me $5
just gotta figure out hor to mount in in a plastic tank, or (if i keep the ma61 rad) if i can just braze it straight into the bottom tank...
ed
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Location:
Brisbane
Registered:
May 2002
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Location:
Melbourne
Registered:
May 2002
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Re: MA70 thermo fan install
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Sun, 09 November 2003 12:26
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| ed_ma61 wrote on Sun, 09 November 2003 22:20 |
i just pulled a Nipon Denso 85deg switch out of a magna today at PNPL... cost me $5
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Sorry been there tryed 2nd hand thermo switchs not worth risking your engine for $50 if its faulty
Allan
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Location:
Lost in the K hole
Registered:
May 2002
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Re: MA70 thermo fan install
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Sun, 09 November 2003 13:12
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| Norbie wrote on Sun, 09 November 2003 23:18 |
Shouldn't it go in the top tank? Or the thermostat housing?
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yeah, youd think so, just that the magna had its located in the bottom tank next to the outlet...
but yeah, i just checked my thermostat housing, and theres a blanked hole with a grub screw in it. pulled it out, and lo-and-behold, thermo switch screws straight in nod:
problem solved
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Sun, 09 November 2003 13:14
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the one off the gt4 radiator i have is also in the bottom tank  strange...
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Location:
Melbourne
Registered:
May 2002
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Re: MA70 thermo fan install
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Sun, 09 November 2003 13:38
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This position works perfectly did a trip to phillip island and back today thermo fans work better then the stock fan ever did
Allan
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Location:
sydney
Registered:
March 2003
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Re: MA70 thermo fan install
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Sun, 09 November 2003 21:33
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to run a thermo switch of a corolla u need a normally closed relay
the common relays are normally open
if u look into a corolla fusebox its the green relay that turns on the thermo
but u have to connect it a certain way otherwise the fans
will work when ignition is off
you usually need an extra relay to run with this green one
to do it properly
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Location:
Adelaide
Registered:
September 2003
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Re: MA70 thermo fan install
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Sun, 09 November 2003 22:31
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Hi Allen,
The thermo fans (the ford *spit* ones), were they new or s/hand ? And was it the whole unit (mounts/cradle etc), or was it just the fans themselves ? The first picture doesn't show the fans too clearly
Cheers
Michael B
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Location:
Melbourne
Registered:
May 2002
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Re: MA70 thermo fan install
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Mon, 10 November 2003 00:25
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| sideshow wrote on Mon, 10 November 2003 08:33 |
to run a thermo switch of a corolla u need a normally closed relay
the common relays are normally open
if u look into a corolla fusebox its the green relay that turns on the thermo
but u have to connect it a certain way otherwise the fans
will work when ignition is off
you usually need an extra relay to run with this green one
to do it properly
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You will notice there is relay with mostly hidden wireing under the connector for the resistor pack for the injectors, normaly closed relays are un-common so I used a DPST relay from jaycar that is common and can easly be replaced if it ever fails.
And the certain way is to conenct the other side of the relay to switched ignition power (black wire with orange tracer) do not cut ANY wire!!! remove insulation carefully over about an inch wrap wire around then solder, clean wire with solvent and tape with high quality pvc tape nitto or 3m brands prefered
NOTE: Only one wire was cut in the process and I fitted a 2 pin molex connector to the cut wire so it can easly be returned to stock should the need arise
| bbaacchhyy wrote on Mon, 10 November 2003 09:31 |
Hi Allen, *OI!!! makal its Allan ;P*
The thermo fans (the ford *spit* ones), were they new or s/hand ? And was it the whole unit (mounts/cradle etc), or was it just the fans themselves ? The first picture doesn't show the fans too clearly
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Whole compleate unit off an AU part number on the invoice is *FO - ER 8C607 A FAN AND MOTOR ASSY
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Location:
Adelaide
Registered:
September 2003
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Re: MA70 thermo fan install
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Mon, 10 November 2003 01:27
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Sorry about the spelling Alin, I'm only an engineer !!!!! And who is makal ?? 
Were the parts new ? I presume that they are when you quoted the invoice part number ?
Another quick question to clarify, will the same installation work in a MA61 with 7M-GTE ? The heading shows it for an MA70.
Cheers
Michael B
Oh by the way, it is tubing, complete, wiring, uncommon 
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Location:
Melbourne
Registered:
May 2002
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Re: MA70 thermo fan install
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Mon, 10 November 2003 02:05
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| bbaacchhyy wrote on Mon, 10 November 2003 12:27 |
Sorry about the spelling Alin, I'm only an engineer !!!!! And who is makal ??
Were the parts new ? I presume that they are when you quoted the invoice part number ?
Another quick question to clarify, will the same installation work in a MA61 with 7M-GTE ? The heading shows it for an MA70.
Cheers
Michael B
Oh by the way, it is tubing, complete, wiring, uncommon
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So I can't be stuffed clicking "Spell-check message" please see tag at bottom of message this is in my MA70, MA61 should be the same but the A/C temp sensor would be one of the left over wires if you used the stock loom (blue with white trace)
only issue maybe if the ma61 engine bay is shorter?
I have seen these fans fitted to an MA61 apparently the owner is now up in QLD so i cant get ya any pics
(anyone in the celica car club seen this car geting around up there?) 
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Location:
Adelaide
Registered:
September 2003
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Re: MA70 thermo fan install
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Mon, 10 November 2003 02:09
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Cheers
Michael B
PS Which one is the spell check button ??? I need a "type right" button for my computer
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Mon, 10 November 2003 04:59
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i built a perfect bracket for an ma61 radiator...search in the for sale section for complete electric fan cooling system or something...
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Location:
Melbourne
Registered:
May 2002
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Re: MA70 thermo fan install
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Mon, 10 November 2003 12:44
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| V8_MA61 wrote on Mon, 10 November 2003 15:59 |
i built a perfect bracket for an ma61 radiator...search in the for sale section for complete electric fan cooling system or something...
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Post whore!  heheheh
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Mon, 10 November 2003 13:15
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thats not being a post-whore! Lol im offering the man some help!
Seriously though, the brackets arent hard to make.
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Location:
Melbourne
Registered:
May 2002
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Re: MA70 thermo fan install
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Mon, 10 November 2003 13:30
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my install is much sexyer tho!
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Mon, 10 November 2003 13:39
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you cheated  i built everything myself
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Location:
Adelaide
Registered:
September 2003
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Re: MA70 thermo fan install
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Mon, 10 November 2003 20:44
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Thats true, but his looks a little lighter and slightly less agricultural 
Much like a **cough** ford motor in a Supra.....
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Location:
Melbourne
Registered:
May 2002
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Re: MA70 thermo fan install
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Tue, 11 November 2003 01:40
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| bbaacchhyy wrote on Tue, 11 November 2003 07:44 |
Much like a **cough** ford motor in a Supra.....
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Amen, i just wasnt going to be that rude sorry all i can say is 1UZ-FE
Allan
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: MA70 thermo fan install
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Sat, 29 November 2003 01:42
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if anyone is actually interested in the AU thermo--> ma61 job, I'll be undertaking it as soon as my radiator is recored (pokes ed)
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Registered:
May 2002
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Re: MA70 thermo fan install
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Sat, 29 November 2003 06:21
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With respect to the poking of fun at the Ford thermos in a Toyota, I happen to run a twin-thermo setup in the Cressida, which seems to do a very good job. (This setup has been discussed at length before, so I'll just say that it is a complete setup from a '94 EF Falcon)
Fitted with about 4 bolts/washers, and almost a perfect fit for the Cressida's radiator. Pulls a LOT of air!
I'm keen to see pics of your install when it's finished Greg. *Pokes Ed*
Although I WILL allow some gentle ribbing of the Ford engine/Toyota combo...  (Think 1UZ-FE)
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Sat, 29 November 2003 08:31
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yeah my fans are actually toyota ones..off a gt4...on a chev radiator.
Im not going to be involved into the pushrod v8 vs jap quad cam v8 debate again.. After its running, and tests have been done tell me what you think. Until then i have nothing to answer for.
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Location:
Adelaide
Registered:
September 2003
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Re: MA70 thermo fan install
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Sun, 30 November 2003 20:54
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Draven,
Count me in as interested on the MA61 details. The setup on Allan's car looks schmick, but would be good to see how it goes in a MA61
Cheers
Michael B
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Location:
Adelaide
Registered:
September 2003
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Re: MA70 thermo fan install into MA61 ?
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Thu, 18 March 2004 02:19
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Draven,
Have you gotten anywhere with this job ?
Cheers
Michael B
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Location:
Melbourne
Registered:
October 2003
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Re: MA70 thermo fan install
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Fri, 19 March 2004 04:44
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Anyone here wacked a thermo fan into a TA22?
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Location:
Auckland, NZ
Registered:
August 2004
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Re: MA70 thermo fan install
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Sat, 28 August 2004 11:04
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hey ya'll
now i've just installed a thermo fan switch to control the factory air con fan... i got it out of a honda prelude xx 1980's
works great car no longer temp spikes while driving
but if i turn off car and go away for a couple of mins and come back and turn her over to ignition (not actually starting car) the temp goes up a quite a bit but once car is started it drops back down to normal almost instantly
i'm thinking along the lines of faulty thermostat or water pump even tho they are both brand new
any help?
Thanks
Suzie the Supra Girl 
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Sat, 28 August 2004 11:10
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what is happening is the phenenomenan? called heatsoak.
When the car settles shuts down, all the water soon gets heated up real quick by the now stationary engine. Remember the water was being pushed through the motor when its running, and when it just lies there, it heats up.
Turbo motors are notorious for boiling coolant when they are shut off.
There is one way to stop it, which is what ill do on my ma61 - hook the switch up to the battery, so whenever the cars coolant reaches the given temperature, the fans come on. Even when the car is shut down!
hope that helps
Btw what supra have you got? Glad to see another female supra owner interested in her car!
Blake
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Location:
Auckland, NZ
Registered:
August 2004
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Sat, 28 August 2004 11:27
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sounds like a sweet supra!
mine also has 3 fans to keep it cool, i installed two for cooling on the inside (sucking)
and one on the outside for the a/c...(pushes)
Works a treat
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: MA70 thermo fan install
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Sat, 28 August 2004 11:29
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Mike - if you're still interested, my thermo setup is complete.
I can take some pics for you... very very nice I must say, and they suck a *lot* (of air).
almost bolts up, just a couple of bits of metal. they'll also need a bit of folded aluminium to complete the job and seal a small (1-2cm) gap, but even as is they have no trouble keeping the car cold.
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Location:
Auckland, NZ
Registered:
August 2004
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: MA70 thermo fan install
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Sat, 28 August 2004 11:42
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fans on while car off is not a great idea - drains battery, and as supra girl mentioned, it'd only cool your radiator.
The real problem is on & around the turbos, where the coolant and oil quickly heats up to turbo temperature (hence turbo timing).
I toyed with the idea of a time-delay on the fans, to keep them running for a minute after switching off, but the benefits really would be minimal (imho)
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Location:
Auckland, NZ
Registered:
August 2004
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Re: MA70 thermo fan install
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Sat, 28 August 2004 11:48
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woohoo my blonde logical thinking does apply sometimes lol
one thing altho not sure how i could intergrate is the audi's have a setup where somehow the engine still circulates water while off (dunno how lol) and the fans still run till the temp reaches a certain temp...
we could somehow figure out how to do that..
i'm seriously investigating major cooling ideas lol
the last thing i wanna do i blow my hg again
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Registered:
August 2002
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Re: MA70 thermo fan install
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Sat, 28 August 2004 11:52
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Relay triggered electric water pump?
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Location:
Auckland, NZ
Registered:
August 2004
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Re: MA70 thermo fan install
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Sat, 28 August 2004 12:01
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ok kool so next question
where to get one for a 7mgte in nz lol
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: MA70 thermo fan install
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Sat, 28 August 2004 12:28
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yep, would need to be an electric water pump, while supra ones are belt (thus engine) driven 
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Sat, 28 August 2004 16:33
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but the thermostat is still open when the car is off, so although it might not be pumping the water into the motor, its sill flowing in and falling down....
IMO.
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Location:
tas
Registered:
June 2002
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Re: MA70 thermo fan install
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Sat, 28 August 2004 16:54
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I have a switch hooked up in the cabin that i use to turn my fans on manually. It works well, i come back home after driving hard, and idle the car for a few minutes, then switch it off and keep the fans running for another few minutes, temp guage goes right down and i don't suffer any heat soak, would be good to have it all automated but it's good as it is.
Also if you turn the car off and keep the fans going, the coolant should keep circulating simply becuase it's got a hot point (engine) and a cold point (radiator with fans spinning) so that should cuase the coolant to keep flowing and pulling the heat out of the engine.
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Location:
Brisbane
Registered:
May 2002
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Re: MA70 thermo fan install
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Sun, 29 August 2004 23:48
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| draven wrote on Sat, 28 August 2004 21:42 |
fans on while car off is not a great idea - drains battery, and as supra girl mentioned, it'd only cool your radiator.
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Draining the battery is never going to be a problem, unless your battery is nearly dead to begin with. I've had my fans hooked up like this for about a year now and the battery has never even looked like failing. The fans are only on for 5 minutes tops after you switch off the engine, and that's only on a hot day.
As for cooling the radiator, that's not true. Even though the water pump is no longer spinning, the convection currents in the cooling system will still pump a decent amount of heat out of the engine.
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Location:
Brisbane
Registered:
June 2003
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Re: MA70 thermo fan install
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Mon, 30 August 2004 02:43
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| Norbie wrote on Mon, 30 August 2004 09:48 |
As for cooling the radiator, that's not true. Even though the water pump is no longer spinning, the convection currents in the cooling system will still pump a decent amount of heat out of the engine.
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exactly what i thought
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Location:
tas
Registered:
June 2002
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Re: MA70 thermo fan install
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Mon, 30 August 2004 09:46
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"Also if you turn the car off and keep the fans going, the coolant should keep circulating simply becuase it's got a hot point (engine) and a cold point (radiator with fans spinning) so that should cuase the coolant to keep flowing and pulling the heat out of the engine."
i also said something simular, except norbie knows the tech term "convection currents" wich made it sound better.
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Location:
Melbourne
Registered:
May 2002
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