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Intank Walbro 255 install write up

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Old 07-13-2010, 10:55 PM
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Default Intank Walbro 255 install write up

heres a quick right up
first get the sending unit out of the tank by removing the lock ring with flat head screwdriver and disconect fuel lines and plugs
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then i removed the float, so i didnt mess it up, its just snaped in plastic clips
then i disconected the plug on the underside of the sending unit and uncliped the wires from the the gas gauge float thing
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then i sepereated the bucket from the rest of the unit by the clips on each side, then disconect the pump harness and gas line on top. remove the sock filter and pull the pump out of the bucket and you will see a lip on the inside were the pump sat that has to be ground down for the walbro to sit down in for the sock filter to snap on
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before
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during
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after
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now the pump sits all the way in and the filter will fit on
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to hold the pump in i drilled 2 holes and ran a zip tie around the pump
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then i took the harness that came with the pump and the factory harness and cut and spliced them and heat shrinked them
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then put the stock hose on the end of the pump and pluged the harness back in and set it down in the bucket
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then put it back down in the tank and turned the key...herd it prime up and fired it up

only thing i would say change is the stock line from the pump to the top of the sending unit, i belive mine has swollen and began to leak.
Old 07-14-2010, 01:07 AM
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nice and simple instructions
Old 12-13-2011, 08:27 AM
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tag nice work
Old 12-13-2011, 08:34 AM
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Nice write up. Dumb question; is that plastic zip tie gas-desolveable?
Old 12-13-2011, 08:40 AM
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no i used zip ties in my tank during my swap and its been about a year and they still look great. Havnt dissolved yet.
Old 12-13-2011, 08:41 AM
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Originally Posted by DTHPROOF
Nice write up. Dumb question; is that plastic zip tie gas-desolveable?
it should be fine.... i hope its fine i have one holding mine together lol
Old 12-13-2011, 09:17 AM
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would this be the same on a 2005? nice write up
Old 12-13-2011, 09:25 AM
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Originally Posted by walledition
would this be the same on a 2005? nice write up
sorry cant help. i know 99-03 is the same. but im thinking that nbs changed something but not sure
Old 03-05-2017, 09:52 PM
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What's the part number on the pump for this?
Old 03-11-2017, 06:51 PM
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Originally Posted by Jason03Chevy
What's the part number on the pump for this?
I went with a High Flow Fuel. HFP-343. It's a 255 that's supposedly flows better than Walbro. It has a lifetime warranty and E-85 compatable. I installed it the same way and with zip ties. No problems. I did, however, change the line from the stock fuel line to a submergeable EFI. It cost like 20 or 30bucks from your local parts store.


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