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I'd always stay away from external swirl pots and pumps after this, there are just to many wiring connections and joints to worry about, this was caused by a faulty fuel pump, also make sure your "metal box" is properly fire proof or you have a proper firewall between the boot and the interior. This was my gear, up all set up properly. Your experience is one of the reasons it's going in the sealed box, you were unlucky there, there's many a car with the fuel pump and filter in the boot, but I figure that it won't cost a lot to fit it inside a small ammunition box, sealed from the boot, though vented to the outside!
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,214
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Nov 14, 2012 17:04:47 GMT
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Or put it all under the bonnet, that keeps the high pressure lines to a minimum, with just low pressure feed and returns.
Don't run any fuel lines on the exhaust side of the engine bay. Any leaks won't "pool" somewhere (like a spare wheel well) and may be easier to spot/smell.
I did this with the Triumph, using a small metal CAV diesel water separator as the surge tank. And I had a couple of leaks, but all that happened was a bit of soft tarmac round by the garage!
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v8ian
Posted a lot
Posts: 3,824
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Nov 14, 2012 19:01:35 GMT
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FI Fuel pumps don't suck very well, they are pushers, thats why they are mounted near the tank,
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Atmo V8 Power . No slicks , No gas + No bits missing . Doing it in style. Austin A35van, very different------- but still doing it in style, going to be a funmoble
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,214
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Nov 14, 2012 19:53:37 GMT
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FI Fuel pumps don't suck very well, they are pushers, thats why they are mounted near the tank, Sorry, yes. Should have said that I was talking about a low pressure pump feed system with surge tank. In my opinion, an in tank EFI pump system is the best. Safest, easiest to install (if you can weld!) and neatest. Which is why all modern cars use this system (the ones I've looked at anyway!), some cars in the 80's used an external EFI pump that had a small surge pot built in, Golf MK2'S I think used this. Having said that, I've used an external pump on the Triumphs present system! It is mounted under the car and takes it's feed from a tank designed to work with a Lucas mech FI injection pump, which runs at a much higher pressure than an EFI pump and goes pop if run dry for a split second! The pump isn't mechanical, but the system is!
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RobinJI
Posted a lot
"Driven by the irony that only being shackled to the road could ever I be free"
Posts: 2,995
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Nov 15, 2012 23:01:35 GMT
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With the Scirocco I'm in the process of knocking up a swirlpot with an in-tank pump inside it like the Webcon one linked on the last page, I'll be running a mk3 Astra 2.0 16v pump inside it: I need to cut a hole in the top to fit the pump and there's a nut behind each of those holes around the outside to bolt down a lid with the outputs in it. This'll be run in the engine bay and fed by the Facet pump that used to feed the carb, which is mounted next to the tank under the boot floor. I don't see why fuel systems being mounted inside the boot is so common when you can usually mount it all under the floor. I'd rather have to replace the parts more often from them being exposed than live with the risks associated with them being inside the cabin.
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Last Edit: Nov 15, 2012 23:05:22 GMT by RobinJI
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Nov 16, 2012 16:59:40 GMT
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This is my preferred solution.
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To get a standard A40 this low, you'd have to dig a hole to put it in
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GavinJ
Club Retro Rides Member
MGB 3.9 v8 Sebring
Posts: 927
Club RR Member Number: 209
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Fuel tank, injection modsGavinJ
@gavinj
Club Retro Rides Member 209
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Nov 16, 2012 17:31:11 GMT
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What tank has that been cut out of Scaryoldcortina?
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Nov 16, 2012 17:45:42 GMT
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It's a mk3 granada pump unit in a cortina tank.
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To get a standard A40 this low, you'd have to dig a hole to put it in
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Nov 16, 2012 18:53:52 GMT
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This is something I'm doing right now. Like others have said, I prefer the idea of fitting the fuel pump/swirl pot in the tank.
If you use the fuel pump from the donor car, you know the system is matched.
I'm using the pump and swirl pot from the donor Omega. This is perfect because the swirl pot can be fixed to the base of the tank (inserted from the top), and flexible hoses connect to your inlet/outlet in the top of the tank. Likewise the electrical connections.
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Nov 16, 2012 19:56:32 GMT
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I've got a similiar problem. I've fitted an s12 Silvia turbo engine in my anglia (CA18ET) I was going to use the original Silvia tank but it's huge and the original Anglia tank is tiny (it's an estate anglia) I've picked up a fuel tank for a Mitusbishi Lancer (C12a) which fits the Anglia aperture perfect. So plan was to graft a section of the Silvia tank into the Lancer tank. Did you brass the bowl into the bottom of the tank / mig plug ? as thats my only stumbling block at the mo. Did mig welding provide a good enough seal or did you use any extra form of sealant ? After seeing that picture of the Cortina i'm going to fire wall mine just as an extra precaution.
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RobinJI
Posted a lot
"Driven by the irony that only being shackled to the road could ever I be free"
Posts: 2,995
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Nov 16, 2012 19:59:26 GMT
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Yeah the in-tank solution's my preferred way too. I've done the internal pump in an external swirl-pot route because I don't have a donor to use and even if I did the donor pump would need heavily modifying because the Scirocco tanks a lot shallower than the engine donors. It also seems like a safer solution in terms of keeping a consistent fuel supply in my eyes, which I'm a bit nervous about because I'm using a turbo engine and the Scirocco tank really is shallow, but I still would have quite liked to just use an in-tank pump.
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Nov 16, 2012 22:57:33 GMT
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I wouldn't want anyone else to lose their car that way, no one was hurt and it was insured, but i had been planning it and collecting parts for over a year and then it took a year to get it ready to run and I only had it on the road for a couple of months.
I was so curse word off I let the insurance company take it away when i could have salvaged the engine and box at least.
It was my first total loss and it hurt a lot more than i ever thought it would, it was just a car after all. :S
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Volvo back as my main squeeze, more boost and some interior goodies on the way.
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,214
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Nov 16, 2012 23:18:05 GMT
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and it hurt a lot more than I ever thought it would, it was just a car after all. :S Yeah, it could have hurt a lot more, glad it was just a car that got lost.
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well I am hoping that there is enough space in front of the tank, so I can fit the swirl pot, it's close, so I wont be certain it fits until the axle is fitted, now my thoughts are that I will return the high pressure rail straight into the tank, I assume that I will not need a return from the swirl pot then, so
low pressure pump from tank to swirl pot, high pressure pump in swirl pot, to rail, rail back to the tank, is that the solution?
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Nov 23, 2012 11:01:00 GMT
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With the Scirocco I'm in the process of knocking up a swirlpot with an in-tank pump inside it like the Webcon one linked on the last page, I'll be running a mk3 Astra 2.0 16v pump inside it: I need to cut a hole in the top to fit the pump and there's a nut behind each of those holes around the outside to bolt down a lid with the outputs in it. This'll be run in the engine bay and fed by the Facet pump that used to feed the carb, which is mounted next to the tank under the boot floor. I don't see why fuel systems being mounted inside the boot is so common when you can usually mount it all under the floor. I'd rather have to replace the parts more often from them being exposed than live with the risks associated with them being inside the cabin. I decided your way was what I was going to do, used a cavalier pump, but similar to astra's took a while to find the right plug to fit it, but managed to find them here www.simtekuk.co.uk/www.simtekuk.co.uk/info.php?p=12&pid=2644140&ack=9just need to weld it all together
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