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DIY: Do It Yourself
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Old 05-03-2012, 03:06 PM   #1
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Join Date: Aug 2011
Posts: 8
My Ride: Smurf Blue M3
DIY Walbro (No Sleeve, No HPF Kit)

Hey guys. I'm not big into write ups but I think this info would be helpful to somebody. It is short and sweet.

I went through my second OE pump and decided to go to a Walbro 255lph.

I ordered a "kit" that was supposed to have everything including a sleeve to fit to the stock location. Of course it didn't and I didn't feel like waiting to return it and getting the HPF, or sourcing a sleeve. So here is what I did.

The Walbro pump is about 4mm smaller in diameter to the stock pump so it just falls through the bottom of the holder.

I'm sure most have seen the HPF vid of fuel pump removal and install so I won't bore you with those details.

After removing the stock pump I took a drill and made a hole through the plastic to the main chamber to drain the left over gas. Flushed it out with water so it didn't explode when I cut it open. Then took a dremmel to the outter metal skin like so:

(ignore the drunken monkey cut, it was 2am and I had a migraine)

Popped the skin into the stock location. There is a locating hump so the oe pump doesn't move. Then I slid the Walbro into the OE skin and cinched it with a ziptie. It doesn't move but I would have preferred to use a worm gear clamp.

Everything else is pretty straightforward. Red wire to red wire, brown wire to black wire etc.

Bingo Bango. Walbro in your tank for about $100.

Last and most important step, celebrate with brownies.
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Old 05-04-2012, 12:00 PM   #2
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Join Date: Feb 2007
Location: Toronto
Posts: 127
My Ride: 2004 M3 AA Gen6 1.5
Great idea to reuse the oem sleeve! I used the foam sleeve/zip tie method and used the beer celebration method instead of the brownies
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Old 05-08-2012, 08:38 AM   #3
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Posts: 8
My Ride: Smurf Blue M3
lol that works too.
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