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I’m stumped #653640
01/08/20 09:52 AM
01/08/20 09:52 AM
Joined: May 2019
Posts: 168
Hampshire, UK
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I noticed a dodgy looking in line 15A fuse holder next to my battery and on inspection the connections were loose and there was evidence of arcing. Having fixed it I then began to wonder what the fuse was protecting, it’s connected to the +ve of the battery, the wire then disappears into the insulation tape snake pit under the fuse box. I’ve tested the circuits that might demand a direct battery connection such as the charger socket and the cockpit 12v socket, in fact I’ve switched everything I can think of and started the engine Complete with immobiliser with it disconnected.

It looks to be factory installed as it enters the wrappings of the engine loom under the fuse box.

Because of the arcing marks it looks to draw decent current at some point and it’s got a 15A fuse. But there’s no draw with the ignition off and with the engine on it’s well below 1mA. Any ideas what it might be for? confused2


M3W Brooklands (2015)
Moody 41 (2013)
Re: I’m stumped [Re: IMHO] #653644
01/08/20 11:00 AM
01/08/20 11:00 AM
Joined: Feb 2016
Posts: 2,969
East Harling, Norfolk UK
Richard Wood Offline
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Richard Wood  Offline
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Joined: Feb 2016
Posts: 2,969
East Harling, Norfolk UK
There was nothing similar on my 2016 model, just the two +ve cables going to starter and main electrical distribution, both sheathed with convoluted tubing. The wiring loom schematics support this.

Have you owned the car from new and/or are aware of any aftermarket additions or mods that may require such a permanent feed. I'm thinking alternate headlamps, horns etc.?


Richard

2018 Roadster - Red/Magnolia - "Morton"
1966 Land Rover series 2a SWB
1960 Velocette Venom
Re: I’m stumped [Re: IMHO] #653647
01/08/20 11:26 AM
01/08/20 11:26 AM
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Hampshire, UK
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Hello Richard,
I bought the car in April 2019 it had one owner from new in 2015 and had done 350miles only. I thought the same but if some aftermarket item had been removed i would expect to see some loose ends somewhere. It’s also taped into the engine loom in a way that doesn’t look aftermarket, the charger socket is typically aftermarket with independent wires going back to the battery terminals.


M3W Brooklands (2015)
Moody 41 (2013)
Re: I’m stumped [Re: IMHO] #653650
01/08/20 11:47 AM
01/08/20 11:47 AM
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Posts: 157
north yorkshire
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Is it for the radiator fan? Run the engine till it shows 90 degrees and see if the fan kicks in with the fuse disconnected .

David Byrne

Re: I’m stumped [Re: IMHO] #653660
01/08/20 12:14 PM
01/08/20 12:14 PM
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I hadn’t thought of that David. Thanks.


M3W Brooklands (2015)
Moody 41 (2013)
Re: I’m stumped [Re: IMHO] #653662
01/08/20 12:29 PM
01/08/20 12:29 PM
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Hampshire, UK
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Award that man a medal!

Thanks David, it is for the fan which was probably retrofitted at the factory before delivery. This would also explain why I’ve not noticed the fan coming on up to now as the connection at the fuse was not good. cheers


M3W Brooklands (2015)
Moody 41 (2013)
Re: I’m stumped [Re: IMHO] #653664
01/08/20 12:41 PM
01/08/20 12:41 PM
Joined: Feb 2016
Posts: 2,969
East Harling, Norfolk UK
Richard Wood Offline
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Richard Wood  Offline
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Joined: Feb 2016
Posts: 2,969
East Harling, Norfolk UK
That's odd confused2. I did consider a retro-fitted urban cooling kit but they became standard fit sometime in 2014 when there was a major revision of the car, born out in the parts book. Guess there was an interim period that lasted some time before the new looms, which place the cooling fan fuse in position 19 in main fuse box, came online.

Last edited by Richard Wood; 01/08/20 12:45 PM.

Richard

2018 Roadster - Red/Magnolia - "Morton"
1966 Land Rover series 2a SWB
1960 Velocette Venom
Re: I’m stumped [Re: IMHO] #653668
01/08/20 12:59 PM
01/08/20 12:59 PM
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Hampshire, UK
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It fits with the history of my car which is Brooklands 11/50 but not registered until 2015 so it was at the factory for a good while. I have the chassis mods with the bolted in A frame behind the engine and I have the black rear sprocket hub but I also have the original HD Cush drive. My fuse at 19 is the 12V socket.

This forum is such a great resource.


M3W Brooklands (2015)
Moody 41 (2013)
Re: I’m stumped [Re: IMHO] #653670
01/08/20 01:06 PM
01/08/20 01:06 PM
Joined: May 2012
Posts: 1,594
Gods own county! Oop north
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Gods own county! Oop north
There can’t be many of us still with the HD compensator, just keep it greased.👍🏼

Re: I’m stumped [Re: IMHO] #653671
01/08/20 01:10 PM
01/08/20 01:10 PM
Joined: May 2019
Posts: 168
Hampshire, UK
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Hampshire, UK
Unfortunately, I didn’t get the grease nipple mod. So I’m taking my engine up to see Phil in October.


M3W Brooklands (2015)
Moody 41 (2013)
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