Ok, managed to squeeze in some time after dinner this evening and took apart the pump using the guide found in the download section.
It was pretty much straight forward but my pump must have been an older unit as the oring was not in the ali housing but in the top cap. Sorry I forgot to take a pic.
Also the bottom plates are different and my unit has slot head screws instead of torx head screws.
I cleaned out all the bits and sprayed the lot with lanox and reassembled it. Hooked up the battery and woohoo it works.
Ok so it works outside the tank. I have no clue if it will work inside the tank yet! LOL!
The other problem I have is that I don't have the rubber damper to mount it to the plastic clip. so I have to figure that one out next.
Will see what i can do on the weekend as I have a 12 hr shift tomorrow.
I also cant believe that no one in WA has in tank fuel tube! Tried Veals, Coventry's, Repco, Auto Pro, Auto One, Supercheap and no one has it.
Now I was looking at this (taken from Motobrick)
Option for the fuel pump surround
«
Reply #12 on: September 13, 2012, 10:06:27 AM »
About a month or so ago, my fuel
pump shot craps. When I removed it, the filter basket thingy was
fubar'd and the surround had been reduced to a gooey muck tar like
substance that I'm sure some of you are familiar with. The plastic ring
that the surround bolts to was ok, minus one of the lock tabs, it still
locked, but the one tab's release was broken.
Anyway, I did some
poking around and found the $18 Herko/ebay fuel pump (thanks
Motobrickers :yes), but it is quite a bit smaller than the original
(original is 52mm and the ebay/herko is 37mm). So this is what I came
up with to replace the $100 assembly of the surround and the sleeve that
you need to adapt the smaller/less expensive pump to the surround.
First,
you will need the right size of foam backer rod. This foam is made for
construction, as a spacer in concrete for expansion, it looks like
this:
You
basically stuff it in a crack and then caulk over it. It's a cheap
spacer, so you aren't filling the crack with the more expensive caulking
product. It is a closed cell polyethylene foam, that comes in sizes
ranging from 1/4" to 6" diameter. If you look up polyethylene you will
find it is pretty impervious to chemical attack. There isn't any way to
"glue" it because of this property. So it should be suitable for work
in a fuel tank. Should even be ethanol proof.
I had a leftover
piece of 2.75" leftover from another project. That size is a bit larger
than the "hole" the pump assembly sits in. I used a 3.5" length.
You
will need a way to "core" out the piece lengthwise, I used a piece of
scrap bicycle frame tubing. That I sharpened so it would cut easily and
straight through the rod. (When I was first working on it, I used an
un-sharpened piece of tubing to make the core, but it cut a "cone" out
instead of a nice hole.) I used the sharpened tube kind of like a drill
(by hand) and went half way through from one end and then went in the
other half from the other end to make sure the hole wasn't cone shaped.
It was ~1" diameter, so the pump fits in pretty snugly. Like this:
What
I didn't get a picture of was the zip ties I used to hold the prefilter
on with. These just go through the center of the backer rod and hold
the screen in place while you stuff it into the hole. Once you get it
in the hole ad the lock ring, and hook everything back up.
Here is the what it looks like:
So
far it has been working fine. About the only thing I've noticed is the
backer rod kind of turns clear in the tank once in fuel, but it's still
there and not dissolving or anything. I needed to replace the in tank
fuel line as well, this silly piece of hose is ~$30 from Napa (or
anywhere else I looked, and only available in 1' lengths
)
Part
of the reason I used the larger piece of backer rod, was that this
thing will want to float on top of the fuel, so it needs to be held in
pretty well, so I wanted the wedging action in the tank and the lock
ring to really hold everything down.
I will update this post if anything changes.
Fuel pump - $18 shipped from ebay.
6' piece of backer rod - ~$12 full retail (you could make ~20 of these though. :laugh)
1' piece of in tank fuel line - ~$28
Does anyone know if the polyethylene foam really hold up to being immersed in petrol? If so, I'm sure I can get some and have the pump in by Saturday!
Fuel pump not running - Side stand switch? Sun Mar 31, 2013 8:25 am
1986 k75, 1985 K100rt, 
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