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BigJimnyMeet (North) 2024 (12 Jan 2024)


BigJimnyMeet 2024

14th July 2024
Parkwood Nr. Leeds

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Emergency overheating protection

  • Lambert
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04 Jun 2019 08:47 #209583 by Lambert
Hi all. I have been reading up on the air conditioning fan being used by the ecu as an emergency overheating control system, as in once the engine temperature gets critical it fires up the fan but not the air conditioning pump. I have been considering deleting the whole air conditioning system but I am now thinking that maybe isn't a good thing if unplugging it causes the emergency feature to be disabled electronically. Put it another way. If I remove all the air conditioning system except the dash matrix and the electric fan but leave the fan plugged in will the absence of the other components from the circuit cause upset and more importantly would it be possible to bridge pins in the loom to retain the emergency signal should it ever be needed?

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!

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04 Jun 2019 16:51 #209601 by Riccy
Why not just keep the fan and wire up to a switch or a basic thermostat?

Otherwise I would assume the only thing you will be removing apart from pipes is going to be the compressor, which only has a feed to it for the magnetic clutch (1 wire only). Therefore it has no switch, meaning the system doesnt know if the thing is responding to the signal given or not. Not sure about if there is any sensors on the pipework tho, measure their resistance and see if you can replicate it with resistors perhaps? thats if there is even any there :laugh:

Removing compressor should have no effect at all therefore (apart from no A/C and about 3 kilos less weight). Just make sure the wire is made safe as it might short out or blow a fuse if its loose. 4PK850 is the belt needed for bypassing it and keeping the power steering ;-)

J999 MNY, ULYSSES M18 VVT with ITB's Dyno tested at 130hp

Pickup/tipper, R7me gearbox & 6.4 Rocklobster, 31" Toyo MT, 2x ARB air locker 3.9 diffs in braced axles, 6" total lift, Floating rear conversion, Raptor painted, CB, Recaro's, Caged, etc, etc...

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  • Lambert
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04 Jun 2019 17:11 #209603 by Lambert
That was the plan upto reading about the emergency overheating thing. I can see what happens when I just unplug it all.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!

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  • Lambert
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04 Jun 2019 19:49 #209610 by Lambert

GeorgeC wrote: Lambert, I go back when we just had a Radiator+Fan, a 7lb Radiator Cap, a 180deg thermostat and a heater (with no fan).

On the 100F+ days we just put the heater on full to give the cooling system that extra little bit of capacity, it worked.

So what happened?


Dunno. I have been shearing all day?

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!

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05 Jun 2019 13:00 #209639 by Lambert
I don't know what if anything can be done with the button font size, I can mention it to Martin?

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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05 Jun 2019 14:49 #209652 by mlines
Font resizing button just below the top right SEARCH box. Use at your peril as I cannot guarantee the display will look correct.

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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05 Jun 2019 14:55 #209655 by mlines
Although the better way is to you your browsers native zoom function

(Press the Control Key and then use the mouse scroll wheel)

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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05 Jun 2019 15:51 #209661 by mlines
Thats because it purely acts on "genuine" fonts, which I why I said the zoom function in the browser is better as it handles a mix of graphics and text

Martin

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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