'77 W200/'93 W250 Fuel Tank

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'77 W200/'93 W250 Fuel Tank

Postby matthewh » Tue Nov 05, 2013 7:32 pm

Hey Guys,

I'm in the process of getting my '77 W200 ready for plow season, and I need to swap out the fuel tanks. Is it possible to use a '93 tank out of a CTD truck and get it to work, without having to replace the big plastic sending unit? I'd like to just swap in the tank, hook up fuel lines, and build a little adapter harness for the fuel gauge.

And yes, I"ll clean out the old diesel that's left :roll:

Thanks
'93 W350 5spd Getrag, 4.10 gears, 83k miles and counting, Mods: LPPP AKA Ma Dually
'54 Dodge M37 6.2/700R4/205, 5.89 gears, WC rear axle
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Re: '77 W200/'93 W250 Fuel Tank

Postby PToombs » Wed Nov 06, 2013 6:40 pm

I think it will fit , but the fuel sender will read off. I have an RC tank in my truck from about the mid 80's or so, and the gauge reads just short of "E" when it's empty and short of "Full" when it is. I can't remember exactly what yours have in them for modules, can you change just the sender? That's what I am going to do on my RC tank, it has the same big plastic module, it's just the sender has a different resistance range than my '92.
pete

Just enough power to break everything behind the crankshaft.
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Re: '77 W200/'93 W250 Fuel Tank

Postby bgilbert » Wed Nov 06, 2013 6:57 pm

The two tanks have completely different holes in the top for the sender. The 93 is big like 5-6" opening. The 77 is at least half if not smaller. Difficult to fit your hand in.

Ok I re-read, you just want to slap it in and run it. Should fit. The gasser will suck fuel just fine from the diesel sender. Fuel gauge might not work at all, otherwise it should work.
Bill Gilbert
85 D350 crew with 90 6BT intercooled Getrag 3.07's
93 D350 single cab Getrag 3.54's.
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Re: '77 W200/'93 W250 Fuel Tank

Postby RCCUMMINS89 » Wed Nov 06, 2013 8:38 pm

PToombs wrote:I think it will fit , but the fuel sender will read off. I have an RC tank in my truck from about the mid 80's or so, and the gauge reads just short of "E" when it's empty and short of "Full" when it is. I can't remember exactly what yours have in them for modules, can you change just the sender? That's what I am going to do on my RC tank, it has the same big plastic module, it's just the sender has a different resistance range than my '92.




I cut a hole in the top of my rc tank and used a thick gasket and screwed the sender from the diesel tank into it (after of course cutting a lip for it).
89 RC on shortened 92 diesel frame - NV4500 w/dual disc/4.10s on 37s. - Self built pump, "hot screw", lots of timing, True high volume low pressure lift pump, 62fmw/68/.7gated, 77lpm SAC Inj., Studs/O-rings,- 423/1220 Mustang - 11/16/2013 http://www.TheHungryDiesel.com full line dealer, if you don't see it please ask.
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Re: '77 W200/'93 W250 Fuel Tank

Postby matthewh » Thu Nov 07, 2013 12:11 am

Yes, I just want to slap in the Cummins tank and run it, as long as the gauge is close, heck it works only half the time as it is, I just carried an extra 5 gal with me.

The old tank was modified by the Military for use with a truck mounted generator, and the hole they drilled has given me fits since I bought it, trying to keep it water tight and not leak, plus, the tank only fills at 1/4-1/2 speed or it overflows,
'93 W350 5spd Getrag, 4.10 gears, 83k miles and counting, Mods: LPPP AKA Ma Dually
'54 Dodge M37 6.2/700R4/205, 5.89 gears, WC rear axle
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