Tight fart Posted April 29, 2003 Share Posted April 29, 2003 I have to run a new wire to feed the fuel pump (from the front to rear of car) What amp rating should I use for this, and should I need to protect it in any way. The engine and gearbox are out so it shouldn't be to hard to thread through the tunnel. SLR for sale T.F@O.F. www.griptv.com Link to comment Share on other sites More sharing options...
Chelspeed Posted April 29, 2003 Share Posted April 29, 2003 Facet solid state? Facet interruptor? Fuel injection pump? Link to comment Share on other sites More sharing options...
Tight fart Posted April 29, 2003 Author Share Posted April 29, 2003 The Rover internal type. SLR for sale T.F@O.F. www.griptv.com Link to comment Share on other sites More sharing options...
stevefoster Posted April 29, 2003 Share Posted April 29, 2003 My JPE one draws 8amps so I put 17amp wire in. My racing pics, 7 DIY, race prep. Updated often here Photo's of the year here Hants (North) and Berkshire Area club site here Link to comment Share on other sites More sharing options...
Chris W Posted April 29, 2003 Share Posted April 29, 2003 For safety, use a wire that is at least as high as the fuse rating. So for example if the fuse is a 15Amp (as it is on mine) then 15A cable will be fine. The fuse won't blow till about 30A (twice the rating) and the cable won't be affected by a momentary rise to 30A. The rating of 15A on a cable or fuse is its continuous use rating. Chris 1.8K SV 140hp see it here Link to comment Share on other sites More sharing options...
Ferrino Posted January 1, 2004 Share Posted January 1, 2004 Guys - how tricky is it to feed a wire from the engine bay, through the tunnel, and out into the fuel tank area, with the gearbox/propshaft in situ? I need to pass a power source to a fuel pump in the back. Cheers Link to comment Share on other sites More sharing options...
stonesracing Posted January 1, 2004 Share Posted January 1, 2004 Hi guys, As we are on the topic of fuel pumps I have been promising to put in one of those little switches to operate the fuel pump manually for draining the tank during a race meeting. Is there a really easy way of doing this as I have tried to find the cables from under the dashboard and the wires are a little difficult to trace. Where would you suggest I take the feed to the switch from? Is there an easier way of operating the fuel pump manually without altering the wiring? Thanks for your help with this. Ian Link to comment Share on other sites More sharing options...
Paul McKenzie Posted January 1, 2004 Share Posted January 1, 2004 Ferrino, Your problem's not going to be getting the wire through the tunnel (just use a straightened out wire coat hanger), but securing it so it doesn't get buggered by the prop shaft. I would remove the gear lever, hand brake cover, transmission tunnel cover, heater screws, move heater forward, manipulate trans. tunnel cover forward and off..then you've got proper access to install and secure. May sound like a PITA but it only takes half an hour Paul Link to comment Share on other sites More sharing options...
Chris W Posted January 2, 2004 Share Posted January 2, 2004 Stonesracing Re the fuel pump manual drain switch...... simply connect a +12v source through an additional ON/OFF switch to one side of the fuel inertia switch (yellow/green wire) under the bonnet. Switching the new switch ON will cause the fuel pump to run regardless of the immobiliser. I would suggest you take a +12v source that is switched by the ignition so that the new switch is not accidentally switched ON with the ignition OFF. Chris 2003 1.8K SV 140hp see it here Link to comment Share on other sites More sharing options...
stonesracing Posted January 2, 2004 Share Posted January 2, 2004 Cheers Chris I will give this a go. Ian Link to comment Share on other sites More sharing options...
Ferrino Posted January 7, 2004 Share Posted January 7, 2004 Cheers Paul - the only removable section of the tunnel in my 7 (1989 LA) is the piece from around the gear lever, however it exposes quite a big chunk of tunnel to secure the wire with. Link to comment Share on other sites More sharing options...
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