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I have a 2-tank switch that needs to be replaced on my '87 E150 302 van. The replacement I can get from the parts stores (which is cheaper than Ford's and will hopefully actually WORK) is similar except the port direction is different.
I looked at it for awhile. The stock fuel lines can't make a 90 deg turn right there. It's not long enough and even if it was it would need a large radius to keep from collapsing.
These stock fuel lines have a hard plastic line inside a loose rubber sheath. They're heat-shrinked on the connectors or something, so I can't really just replace the connector on the end. I'd consider replacing the entire thing but it's going to mean draining and dropping the center tank. I'm not big on this idea.
Is there a simple adapter that has the male fuel connector on one side, turns 90 deg, and a female on the other side? In each of the diameters used for fuel delivery and return as used on this EFI type?
I'd just replace the existing system with OEM parts. Failures only happen after many many years and miles. So if you replace it now with a stock unit it should last as long as you own it.
In this case the OEM part is infamous for causing problems. I believe this one was replaced by the previous owner to begin with and was hokey with me and then failed completely. As I recall it's an extremely expensive and hard to obtain exotic part (mfg only and I'm not sure they even make it anymore). In this case I think the mass produced switch is likely to be much better quality. And if I can get it set up to work with this switch it can be replaced FAR cheaper if it ever fails.
I know a guy that has the aftermarket switch ( of unknown age, presumeably not that old) that has failed. I do think that ford upgraded it at some point, so you may look into a replacement.. I'd call the best dealer in town (look to see who everyone runs to) and then ask their service manager for his recomendation. We have good luck with that here.. Then again the dealership we deal with is second to none.
On my 89 van the lines are connected by a small white clip. You can pop this clip out the fuel line comes right off. The clips will usually break when removing them. I found this out after one of my clips broke when I was 1200 miles from home. Because of the traffic I had to pull into the median. As I was taking off the engine cover a guy pulled up and helped me out. He found it right away when I turned on the ignition and he found the fuel shooting out of the broken line. He took me down to the local parts place and we picked up the cheap clips and I was good to go.
Maybe you could just live with one tank. My 89 van I got rid of had rusty tanks that I couldn't fill all the way up so I just ran them as full as I could without gas coming out.