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Created on: 06/25/12 04:37 PM
Replies: 29
Romans
Location: Toronto,ON
Joined: 02/13/09
Posts: 5926
Walbro 255 In Tank Pump
06/25/12 4:37 PM
My fuel pressure has been all over the board so started digging see pics below.
Can someone tell me where to buy this rubber Gromet or gasket # 74 for this pump ? Almost cost me a motor, fluke that I caught it. Cheers
* Last updated by: Romans on 7/2/2012 @ 9:47 AM *
Romans
Location: Toronto,ON
Joined: 02/13/09
Posts: 5926
grin14
Location:
Joined: 02/27/09
Posts: 253
RE: Walbro 255 In Tank Pump
06/26/12 3:49 AM
I saw it on the other side thanks.
Thats what made me pull mine out.
I am going to machine a sleeve that I can araldite to the pump that has a small O ring to slide into the housing, end of problem, Ill send you one if its works ok.
Cheers
COOTER
Location:
Joined: 04/27/11
Posts: 1342
RE: Walbro 255 In Tank Pump
06/26/12 11:19 AM
Romans you can not but the pars you are looking for when you buy a new fuel pump can you send me your old pump I have experiments I want to try this is the stock pump because my questions are mainly about the filter?!?!?!?
Romans
Location: Toronto,ON
Joined: 02/13/09
Posts: 5926
RE: Walbro 255 In Tank Pump
06/26/12 7:56 PM
when you buy a new fuel pump can you send me your old pump I have experiments I want to try this is the stock pump
Normally I would say yes no problem but in this case I'm waiting for new Gromett or seal orrrrr what ever this gasket thing me is called lol. One of the members is sending to me. Still wish I could buy from dealer ????
questions are mainly about the filter?!?!?!?I was in shock how plugged up this was. Bike has only 9500 kilometers on it. More maintenance required on my part.
COOTER
Location:
Joined: 04/27/11
Posts: 1342
Romans
Location: Toronto,ON
Joined: 02/13/09
Posts: 5926
RE: Walbro 255 In Tank Pump
06/27/12 2:03 PM
you have to buy the whole fuel pump not individual parts
This makes me nuts
I want to design a replacement filter so you don't have to buy a whole new fuel pump!!!
Smart, If this does not work out I will send to you ASAP. I just bought a MSD External pump, now looking for fuel rail and block off tank plate, so maybe soon. I just need to make the most out of summer while it lasts.
I know this will cost me a motor if I ignore. Soft rubber rips. I got lucky,,,,, this time ?????
* Last updated by: Romans on 6/27/2012 @ 2:19 PM *
COOTER
Location:
Joined: 04/27/11
Posts: 1342
Romans
Location: Toronto,ON
Joined: 02/13/09
Posts: 5926
hagrid
Location: pittsburgh
Joined: 02/16/12
Posts: 2210
RE: Walbro 255 In Tank Pump
06/29/12 10:20 PM
Holy McFuck!! 320 simoleans for that pump!? What is it made of... unicorns?!
And that filter needs to have three times the current surface area.
* Last updated by: hagrid on 6/29/2012 @ 10:23 PM *
COOTER
Location:
Joined: 04/27/11
Posts: 1342
grin14
Location:
Joined: 02/27/09
Posts: 253
RE: Walbro 255 In Tank Pump
06/30/12 1:39 AM
http://myworld.ebay.co.uk/hrc-performance-limited/
try this company its where I got mine from, much cheaper.
Grin 
English biking weather!
* Last updated by: grin14 on 6/30/2012 @ 1:40 AM *
Romans
Location: Toronto,ON
Joined: 02/13/09
Posts: 5926
grin14
Location:
Joined: 02/27/09
Posts: 253
RE: Walbro 255 In Tank Pump
06/30/12 1:43 PM
No my original went back in (gasket seal)
......Im gonna make the sleeve arangement I spoke of before.......
I machined a blank to replace the regulator also
now have cam sensor fail!!!
incredible, yesterday I went motorway to see a pal and do some work for him, bike did 54mpg, can that be right with a turbo? I have to admit I was riding real steady studying AFR all the while.....
Sensor was a pain!
Grin
* Last updated by: grin14 on 6/30/2012 @ 1:46 PM *
Romans
Location: Toronto,ON
Joined: 02/13/09
Posts: 5926
RE: Walbro 255 In Tank Pump
06/30/12 9:29 PM
bike did 54mpg, can that be right with a turbo?
Look at your fuel cells. -30s and all air comes in swirling. Insane mileage off boost.
No my original went back in (gasket seal)
......Im gonna make the sleeve arangement I spoke of before.......
I machined a blank to replace the regulator also
Ok, why do we need a Regulator when we have a external one,,,, this is stupid,,,,, Start retro fit in morning.
grin14
Location:
Joined: 02/27/09
Posts: 253
RE: Walbro 255 In Tank Pump
07/01/12 1:48 AM
All down to a good base map from you......:)
Romans
Location: Toronto,ON
Joined: 02/13/09
Posts: 5926
grin14
Location:
Joined: 02/27/09
Posts: 253
RE: Walbro 255 In Tank Pump
07/01/12 1:26 PM
Nice, cant quite see how you held the pipe onto the outlet at the base, did you manage to get a hose clip on it? 
COOTER
Location:
Joined: 04/27/11
Posts: 1342
Romans
Location: Toronto,ON
Joined: 02/13/09
Posts: 5926
RE: Walbro 255 In Tank Pump
07/02/12 6:31 AM
Nice, cant quite see how you held the pipe onto the outlet at the base, did you manage to get a hose clip on it?
No clip, pipe Outside diameter is bigger than plastic. Once forced onto the spigot, pipe swells to 1/8 over size and can not move up,,,,, Rephrase,,,, Hope. I can't pull hose out anyway, she's stuck in there solid.
Cool are you going to put a high flow in line filter in there?
I'm thinking outside tank inline before fuel rail. All I have 4 now is that tiny shit factory one on the pumps intake side.
Another set back. If you look at picture above you will see what can be called a Frost Plug. Pops under to much pressure. There is three of them. I Thought only two. I just noticed that the one hidden has popped out. I missed this due to it being covered by regulator housing.,,,,GGGGGGGGGGGGGGGGrrrrrrrrrrrrrrrrrrr.
This fucking pump is a ticking time bomb. 100 ways to fail, It wants me to blow up,,, I'm sure of it. Personal now.
Guys if your running this pump it's just a matter of time, you will get bit. Watch your pressure closely
What kills me is I have never ever run 130 psi which is spec, so why did they pop. Crap pumps = major down time grrr.
* Last updated by: Romans on 7/2/2012 @ 7:08 AM *
grin14
Location:
Joined: 02/27/09
Posts: 253
RE: Walbro 255 In Tank Pump
07/02/12 9:14 AM
Hang in there Roms.........were are with you on this......
Grin
Romans
Location: Toronto,ON
Joined: 02/13/09
Posts: 5926
COOTER
Location:
Joined: 04/27/11
Posts: 1342
Romans
Location: Toronto,ON
Joined: 02/13/09
Posts: 5926
RE: Walbro 255 In Tank Pump
07/03/12 7:47 PM
Ok, why do we need a Regulator when we have a external one,,,, this is stupid,,,,, Start retro fit in morning.
Well, well, well. First test run was short due to rain,, but guess what ???? Now fuel pressure rise is smooth and matches the speed of boost climb.
No longer does pump have to force through filter and the in tank Regulator, who's job was to maintain 42 psi. All the while our new fuel return Regulator trying to make 80psi. Conflict is over. The above statement was eating away at me. Was loosing sleep lol. Two regulators makes no sense ?????
2nd thing. How are all the guys having these frost plugs pop if we stay under 130psi?????
Answer; What if pressure from pump is shooting high in front of the in tank reg ??? Then frost plug would pop from pressure spike. We would not see this on our gauge because we only see the pressure after the reg and the fuel rail ???
This way, pump works half as hard frost plugs should not pop also no need to have ignition fuse bumped up. All good.
3rd. Down side is I had to turn out back pressure screw and open blow off, as pressure shot to above 95 psi under full boost. Will keep turning out to get it exact. Work in progress
Now the mapping must start again to make perfect, but it works exactly like it should. More testing but looks good thus far. Finally progress 
* Last updated by: Romans on 7/3/2012 @ 8:19 PM *
grin14
Location:
Joined: 02/27/09
Posts: 253
RE: Walbro 255 In Tank Pump
07/09/12 2:14 PM
Hey Romans how are you getting on with your fuel system......Is she a runner?
Grin
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