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Loser (me) broke his fuel pump (Upd w/pics pg 2 )

19K views 56 replies 38 participants last post by  Mamba  
#1 ·
Well, I'm nominating myself for loser of the week. I had to dig into my under seat wiring to fix the broken connector on my battery tender. Easy fix, right? Well, I fixed it fine but when I was buttoning it back up, I couldn't get the tray on the top of the battey to sit right....the fuse for the battery tender wiring was in the way...Thought I got it back in an ok place and the last thing I did was secure the ECU with the strap and tuck my PCIII on top of my fuel pump. Fire her up to make sure I didn't short anything and all is well so I put the seat back on and it's a little snug....seemed normal. So I sit on the seat to ease it back into the garage and POP goes something under the seat and it shuts off....Me thinking I pinched a wire, I take the seat back off and turn the key off and back on to see if I have all the electronics....FUEL STARTS SPRAYING EVERYWHERE....The PCIII wasn't tucked up under that metal bracket far enough and it broke the connector on the top of the fuel pump when I sat down...Guess what, It's only sold as a complete assembly....500.00!!![B)]

I hate to attempt a repair on a plastic fitting with it under fuel pressure...I don't even know exactly where it's broken I'll have to get it apart this weekend. But it's a connector that goes into the white plastic top of the fuel pump....looks like one molded piece on top. Any ideas?

I'm not very happy right now. Oh yeah, and my wife just quit work to go back to school...I think I just lost my Speedstar Cams! Oh well, dreaming is fun.
 
#7 ·
I am thinking out loud here so dont shoot if i say something incredibly stupid (it will just be that i did not think off it[/emoticons/emotion-5.gif])

Is it not possible to move the PCIII to the toolbag location and vice versa, just rearange the toolbag around the connector and solution found???
 
#9 ·
That F'n blows. can you post any pics. There are plenty of creative people here that might be able to give you some ideas. I'm also wondering if that plastic 90 degree nipple can be welded back on. No joke and no laughing. There are guys in my trade, including myself, that weld plastic pipe together. Actually fuse not weld. I'm also guessing that it was a 90 degree nipple. Post some pics bro
 
#13 ·
I'll know more as soon as I get it taken apart. It looks like a 90 degree fitting that has a black hose clamped on it. The problem it that it's definately a high pressure connection. I'll take some pics when I get it apart. I might tear into it tonight, I can't stand to let things like that sit. I'm all for a repair if it looks like it can be trusted.

I'll look for opinions on repair when I get it apart.

Thnaks guys....Be careful with your PCIII.
 
#20 ·
quote:Originally posted by Opelgt

I do not have access to my Bike to get a look at my fuel pump this month as I am in malaysia without 2 wheels, but consider the possibility of tapping the plastic and putting in a threaded brass fitting. I did this once before on a cager and it has worked for 10 years now.




That is exactly what I envisioned. I'm going to have an engineer at work look at it. He's no much for hygiene but he's a sharp guy with this kinda stuff. I still haven't taken it out, hopefully tonight.
 
#21 ·
Ok, I finally got it apart...that thing is a bear to get out. You have to take the bolts out of the entire tank to lift the pump out, otherwise it hits the frame and won't come all the way out. So, as you can see, the small output nipple is busted clean off. My plan is to flatten it out on top, tap the plastic and thread an elbow on it with a barbed end and replace the hard fuel line that connects there with some high pressure stainless braided fuel line. I plan on covering the brass elbow threads with an epoxy and making an epoxy volcano around the bottom where the brass meets the plastic. What does everyone think?

I wish I could use a fitting with threads and a nut on the other side but you can't get to the other side of that plastic top piece, the assembly on the bottom is melted together, I'd destroy it trying to get in there.

As you can see, the low/no pressure input lines are stout AND replacable (at least one is not molded) but the high pressure output is a cheap molded small nipple....Makes no sense to me.



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#23 ·
quote:Originally posted by parabellum

Rather than flatten it out...I would tap it as is...that extra material right there will only add strength and you are just going to cover the entire thing in epoxy anyway...




You're right, I agree. My initial thought was to make it flat for a sealing surface but it'll be covered anyway.

Thanks.
 
#26 ·
quote:Originally posted by parabellum

I guess the other question is: How to you test it out safely to ensure you don't have any leaks? Can you simulate the same pressure off the bike? I guess the old soapy water trick might work...


Believe me, it freakin leaked like a muther when I broke it...at first it was just a crack and it SPRAYED....I broke it the rets of the way off taking it apart...I'll just look for spraying fuel again!