 | Home > Technical > Fuel Cut off solenoid |
 
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324  
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I'm not sure that it matters. The pump won't operate unless your manual switch is activated either way. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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24th Feb 2017 9:05am |
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| Browjam Member Since: 03 Jun 2014 Location: South East Posts: 114 
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Good modification, had this done recently - biggest problem is trying to find somewhere to hide the switch
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24th Feb 2017 9:09am |
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| Profyaffle Member Since: 03 Oct 2016 Location: N Yorks Posts: 527
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Thank you... I think it will be less faffing with a permanent live.
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24th Feb 2017 9:30am |
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| shaggydog Member Since: 12 Aug 2012 Location: Kent Posts: 3347 
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Remember to put a non return valve in the return pipe (facing the correct way of course) otherwise pump can pull fuel from the tank around the switch via the return. Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197
Self confessed mileage hunter  |
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24th Feb 2017 12:58pm |
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| excossack Member Since: 22 Feb 2012 Location: North West Posts: 5850 
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Why bother with a visible switch, why not say using something like a headphone jack socket, that you insert a plug into which completes the circuit? Keep this on a lanyard on the keys so you can't forget to remove it? (like a reverse kill switch on an outboard engine, or dead mans handle.) 1999 Defender TD5 110
Regards John M0VAZ Econet Station 48 no clock |
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24th Feb 2017 1:08pm |
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| Profyaffle Member Since: 03 Oct 2016 Location: N Yorks Posts: 527
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Thanks for the advice... but... I'm a novice and I don't know where the return is or where/which NRV to get.. Will it be obvious when I look at the tank? It's a 200tdi 90 btw. Julia. |
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24th Feb 2017 2:04pm |
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| Profyaffle Member Since: 03 Oct 2016 Location: N Yorks Posts: 527
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Good idea but I'm stretching my abilities and knowledge doing a simple switch..  |
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24th Feb 2017 2:05pm |
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| Low-Range Member Since: 30 Sep 2016 Location: BC Posts: 41 
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Not that I know much, but power on opens the valve, I cant imagine that that wouldn't wear out the switch sooner. I cant see the advantage. It could be a counter measure to theft if not an obvious power switch marked fuel solenoid., but other than that why would you want to?
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27th Feb 2017 9:50pm |
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| Profyaffle Member Since: 03 Oct 2016 Location: N Yorks Posts: 527
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It is supposed to be anti theft device so thats why I'm fitting one, with either a hidden or a disguised switch.
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28th Feb 2017 9:18am |
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| macfrank Member Since: 05 Nov 2015 Location: somewhere in the north Posts: 1081  
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Hi, I thought about this too. Have an alarm with a relay for that purpose, but what happens if you just cut off the fuel by switching off the pump? Will the engine run dry (Diesel, not good) or will the ECU say "oops" and cut the engine?
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28th Feb 2017 11:39am |
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| Profyaffle Member Since: 03 Oct 2016 Location: N Yorks Posts: 527
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Sorry I don't know.. I don't have any electronics being a 200Tdi... Would it not just be like running out of fuel?
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28th Feb 2017 11:52am |
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| shaggydog Member Since: 12 Aug 2012 Location: Kent Posts: 3347
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It will run out of fuel and stop doing no real damage.
In order to restart it you will just have to purge the air and re-prime the system using the lift pump on the side of the engine. Proper kit  Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197
Self confessed mileage hunter |
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28th Feb 2017 12:54pm |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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That's right for a 200tdi but may not be for a Puma engine. It's really not recommended to run modern diesels dry of fuel and there is even a built in 'strategy' that's intended to give plenty of warning and prevent it happening. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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28th Feb 2017 1:10pm |
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| shaggydog Member Since: 12 Aug 2012 Location: Kent Posts: 3347
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Oh no I was specifically talking about vehicles upto 300Tdi
Common rail engines get very upset if you let them run dry, Puma's especially can be a nightmare to get running again as you need special bleeding pumps (I believe for 2.4?) That said, It will most likely stall somewhere close and in the middle of a road drawing attention to itself and need to be abandoned rather than get away so its one of those calculated risks as ever. Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197 Self confessed mileage hunter |
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28th Feb 2017 1:20pm |
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