jamesd1972
Club Retro Rides Member
Posts: 2,834 
Club RR Member Number: 40
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Hi, I don’t believe the car with green relays prime the fuel circuit, the later cars with a white relay do but they’re ecu controlled. Some more explanation of the circuit here: www.240turbo.com/fuelpumprelay.htmlIf the rest of the circuit is what you want, you could add a priming button to the dash? I appreciate that’s not quite as neat as having the relay do it for you. You could add a small circuit to act as a primer… again not as neat as finding a relay that has that functionality built in. Cheers |
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jamesd1972
Club Retro Rides Member
Posts: 2,834
Club RR Member Number: 40
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Hi, I don’t believe the car with green relays prime the fuel circuit, the later cars with a white relay do but they’re ecu controlled. Some more explanation of the circuit here: www.240turbo.com/fuelpumprelay.htmlIf the rest of the circuit is what you want, you could add a priming button to the dash? I appreciate that’s not quite as neat as having the relay do it for you. You could add a small circuit to act as a primer… again not as neat as finding a relay that has that functionality built in. Cheers Thanks for the reply, that's one of the sites I've been staring at ! I've bitten the bullet and ordered one to play with as in my head this is doing the same job as the VW relay with the same connections and if it doesn't prime then it would give starting issues. If it does work I'll be very happy, if not the prime button isn't a huge thing to fit or I stop being tight and buy a VW one at twice the price ! James |
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melle
South West
It'll come out in the wash.
Posts: 1,983
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Jan 15, 2023 23:47:02 GMT
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If the relay you ordered doesn't work, one from a classic Saab 900 does prime (Saab Part number 95 50 948). Saabits can order one for you from Orio (their website lists a more expensive aftermarket one as the default 900 fuel pump relay for some reason).
In my Saab 96 I've added a Jaguar/ Ford inertia switch as well for good measure:
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www.saabv4.com'70 Saab 96 V4 "The Devil's Own V4" '77 Saab 95 V4 van conversion project '88 Saab 900i 8V
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jamesd1972
Club Retro Rides Member
Posts: 2,834
Club RR Member Number: 40
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The Green one didn't prime - or work even when grounded so went in the bin in a mild hissy fit !
Had looked for the Saab one but not found it for a reasonable price, many thanks for the link.
Inertia switch probably not a good idea on a leaf sprung Land Rover - you really know when you hit a big bump.
James
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