Cooling fan relay questions

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No Quarter
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#1 Cooling fan relay questions

Post by No Quarter » Fri Oct 20, 2023 12:47 pm

Wiring loom installed, almost, down to the details.

1. Picture shows the cooling fan relay, right?
Image

2. How is it to be attached? I can't see any attachment points near for the two holes. I'm sure bracket C28134 will do the trick, but everywhere I see it, it's named for 4.2 only, so how was the relay attached on our 3.8s?
Image

3. Wires are numbered 1, 2, 3 etc, not visible on my relay, where can I find schematic of the 5 legs?
Mikael
63 E-Type, 81 XJ6, 03 X-Type, 07 XKR
09 CTS-V
78 Longchamp
Author of "Tuning Made Easy"
https://www.amazon.com/Tuning-Made-Easy ... 373&sr=8-1

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dlgis
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#2 Re: Cooling fan relay questions

Post by dlgis » Fri Oct 20, 2023 3:21 pm

Here’s a pic of the back of the relay which might help:


Image
Darryl
1964 S1 FHC 3.8 opalescent maroon

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caveman
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#3 Re: Cooling fan relay questions

Post by caveman » Fri Oct 20, 2023 6:45 pm

Steve
1965 S1 4.2 FHC (early)

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#4 Re: Cooling fan relay questions

Post by caveman » Fri Oct 20, 2023 7:06 pm

Position for later cars:
viewtopic.php?t=14684
Steve
1965 S1 4.2 FHC (early)

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mgcjag
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#5 Re: Cooling fan relay questions

Post by mgcjag » Fri Oct 20, 2023 7:08 pm

The original poster if after the location of the relay...not the wireing details....had a quick look in the 3.8 factory fit section and found this....Steve
Image
Steve
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc

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#6 Re: Cooling fan relay questions

Post by caveman » Fri Oct 20, 2023 7:13 pm

[quote
3. Wires are numbered 1, 2, 3 etc, not visible on my relay, where can I find schematic of the 5 legs?
[/quote]

You may want to read OP thoroughly.
Steve
1965 S1 4.2 FHC (early)

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#7 Re: Cooling fan relay questions

Post by No Quarter » Fri Oct 20, 2023 7:15 pm

Thanks, great answers on wiring. Not understood positioning yet. I use the original wiring, which is in remarkable condition, and the relay has to be placed on the left side, 15-25 cm in front of starter relay. I just donøt see anything to attach it to. And remember the reason for most of my questions, I didn't take it apart, I bought it in boxes. The next E-Type will be easier :lol:
Mikael
63 E-Type, 81 XJ6, 03 X-Type, 07 XKR
09 CTS-V
78 Longchamp
Author of "Tuning Made Easy"
https://www.amazon.com/Tuning-Made-Easy ... 373&sr=8-1

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#8 Re: Cooling fan relay questions

Post by mgcjag » Fri Oct 20, 2023 7:16 pm

Yes your correct my mistake....Steve
Steve
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc

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#9 Re: Cooling fan relay questions

Post by caveman » Fri Oct 20, 2023 7:24 pm

Image
Image
Steve
1965 S1 4.2 FHC (early)

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#10 Re: Cooling fan relay questions

Post by No Quarter » Fri Oct 20, 2023 7:26 pm

It's LHD BTW
Mikael
63 E-Type, 81 XJ6, 03 X-Type, 07 XKR
09 CTS-V
78 Longchamp
Author of "Tuning Made Easy"
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#11 Re: Cooling fan relay questions

Post by mgcjag » Fri Oct 20, 2023 7:27 pm

Have a look here.....post 98.....note relay was not used on later 3.8 cars...Steve viewtopic.php?f=4&t=2006&start=80
Steve
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc

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#12 Re: Cooling fan relay questions

Post by caveman » Fri Oct 20, 2023 7:30 pm

No Quarter wrote:
Fri Oct 20, 2023 7:26 pm
It's LHD BTW
Just swap to other side :lol:
Steve
1965 S1 4.2 FHC (early)

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#13 Re: Cooling fan relay questions

Post by No Quarter » Fri Oct 20, 2023 7:50 pm

If the relay is to be able to reach the wiring ( :bigrin: ), it has to be attached somewhere in the yellow area. Would hate to drill unnecessary holes...
Is there not a reasonable original LHD 3.8 out there to look at? I have a handful of helping people with E-Types here in Denmark, but all 4.2 or V12
Image
Mikael
63 E-Type, 81 XJ6, 03 X-Type, 07 XKR
09 CTS-V
78 Longchamp
Author of "Tuning Made Easy"
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ralphr1780
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#14 Re: Cooling fan relay questions

Post by ralphr1780 » Sat Oct 21, 2023 6:28 am

On the LHD the relay remains in the same position/location as in above pics: on the right side under the header tank.
Ralph
'69 OTS + '62 OTS - Belgium

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Allrand
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#15 Re: Cooling fan relay questions

Post by Allrand » Sat Oct 21, 2023 7:07 am

Here it is on my 64 3.8.

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Randall Botha
'64 3.8 fhc & '51 Mk 7

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#16 Re: Cooling fan relay questions

Post by Series1 Stu » Sat Oct 21, 2023 12:49 pm

Is it possible, Maikel, that you have the horn relay which is mounted on the inside of the left hand mudguard, just ahead of the starter solenoid?

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Stuart

If you can't make it work, make it complicated!

'62 FHC - Nearing completion
'69 Daimler 420 Sovereign
'78 Land Rover Series 3 109

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#17 Re: Cooling fan relay questions

Post by No Quarter » Sat Oct 21, 2023 2:10 pm

Could be horn relay if horn relay is still placed there if car is early enought to have horns placed beside headlights in bonnet?
Mikael
63 E-Type, 81 XJ6, 03 X-Type, 07 XKR
09 CTS-V
78 Longchamp
Author of "Tuning Made Easy"
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#18 Re: Cooling fan relay questions

Post by Series1 Stu » Sat Oct 21, 2023 8:31 pm

No Quarter wrote:
Sat Oct 21, 2023 2:10 pm
Could be horn relay if horn relay is still placed there if car is early enought to have horns placed beside headlights in bonnet?
Yes, mine is a (very) late '62 FHC and has the horns in the bonnet and the relay on the mudguard.

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Stuart

If you can't make it work, make it complicated!

'62 FHC - Nearing completion
'69 Daimler 420 Sovereign
'78 Land Rover Series 3 109

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#19 Re: Cooling fan relay questions

Post by DWW » Sat Oct 21, 2023 9:42 pm

Mine too.
Danny

1962 S1 3.8 FHC (1012/1798)
2015 Range Rover Sport SVR
"Experience is something you don't get until just after you need it."

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#20 Re: Cooling fan relay questions

Post by No Quarter » Sun Oct 22, 2023 3:20 am

Think I got what I need now, a few days before I can get to it to try it...

Thanks
Mikael
63 E-Type, 81 XJ6, 03 X-Type, 07 XKR
09 CTS-V
78 Longchamp
Author of "Tuning Made Easy"
https://www.amazon.com/Tuning-Made-Easy ... 373&sr=8-1

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