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12V Fuel System

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Old 05-15-2009, 08:06 PM
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12V Fuel System

Well, I finally sprung a big leak - havent had a chance to look at it real good yet but Im pretty sure the problem is with the fuel line(s).

I want to redo the whole fuel system with 1/2" S.S. tubing and Swagelok PB-8 hose. Now, I should know this but does anyone know what size of fittings are in the fuel system (lp, fuel filter, Injector pump).

I know Vulcan Performance sells a kit but I believe that it only goes from the Fuel filter to the Injector pump. Its pretty $$ as well.

Can any 12V guys help me out here?

Thanks.
Old 05-15-2009, 09:06 PM
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Injection pump inlet is 14x1.5 or you can remove the helicoil and it's a 16x1.5. I think the lift pump outlet is 12x1.5. I have them wrote down somewhere but can't find them right now. I'm going off of memory. I'll try to find them and post them up tomorrow if they are wrong. i deleted the fuel filter bowl and heater though. I run a baldwin fb 1311 filter base. There is a lot of choices for 2 micron fuel filters with that setup.
Old 05-15-2009, 11:02 PM
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Thanks...would be nice if you could find them.


It would have been nice if they installed SAE fittings on these trucks.
Old 05-16-2009, 10:26 AM
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Yeah they are all metric. The filter base I used is SAE fittings. i'm still looking.
Old 05-16-2009, 05:17 PM
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Originally Posted by mdavlee
or you can remove the helicoil and it's a 16x1.5.
Don't remove the helicoil, its there so you don't ruin the threads when torqueing a steel fastner into th epump body, which is a softer alloy.
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