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isuras2 · Joined: 17 Jun 2005 Posts: 458 Location: Phoenix, AZ

I have an idea for a How-to, but haven’t done it yet. I think an old fuel pump relay can be taken apart and used for the jumper. My thought is that it would be much easier to unplug the fuel pump relay and install the jumper/relay box than just the two jumper wires, especially in the dark. My only reservation is that the relay is a tight connection where if you just have two male ends on the relay box, they might get pushed into the box. Would a jumper/relay box be a good idea?
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Rob
'80 931 (sold)
'80 924 NA (sold)
Former Omaha Crew

Rich H · Posted: Tue Aug 28, 2007 11:17 pm Post subject:

Why not install a switch if your jumpering it often enough to worry about making something to make it easier?

Make sure the switch contacts can cope with 16A (Thats how big the fuel pump fuse is) and I would go for a 3 pos switch: on/off/relay bit of added security perhaps?

HTH
Rich
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1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

isuras2 · Joined: 17 Jun 2005 Posts: 458 Location: Phoenix, AZ

It hasn't happened yet to me. I just thought it would be easier to make that and not need it.
_________________
Rob
'80 931 (sold)
'80 924 NA (sold)
Former Omaha Crew

morghen · Joined: 21 Jan 2005 Posts: 9102 Location: Romania

i've repaired one fuel pump relay....the capacitors were shot...but i also replaced the Beta 555 temporisator circuit. The trick is that you have to corectly calculate the capacitors so you get the 1-2 seconds of fuel pump runing before it shuts off....mine stopped working and after my repair it holds up for about half a second if there is no voltage on the terminal 1.
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