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Discussion Starter #1
It was going great until I needed to put the gas tank back on...then I noticed the plastic 90 degree fuel tank connector on the bottom of the tank was cracked. I was super careful then the wife comes out...:thewife:

So I drained the tank and now it sits until I figure out how to get it fixed. I did notice some fixes for the fuel tank connector on the previous model year and was wondering if that would work?
 

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Discussion Starter #6
So looking in the service manual I'm a tad confused on the fuel pump O ring. I only have one O ring and I put it in position 1 (the notch) and fuel leaks. I put in position 2 and same thing. Am I supposed to have two O rings? The parts breakdown doesn't help spell it out for me either. I've inspected the O ring also and it looks good...:cry:

 

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CPC metal fittings?

Donsy and Mitch they won't help him, he has a '10 bike with a single red John Guest fitting on the bottom:wtf:

and it has 3 hose fittings in the pump plate:wtf::wtf: the old bikes had 2

Timber29;

you need to remove the cannister, if you have it (since i don't know where you are) and wye the drain/vent lines together INSIDE the tank

make them ~20cm/8" longer than stock.....then you can change the fuel filter without disconnecting the vent/drain lines

epoxy 2 of fuel pump plate fittings closed.....that way you only need to remove 1 clamp the remove the fuel pump completely

the plastic tank MVs use 2 of the big O-rings .....my '08 910R came with only 1:wtf:
but didn't leak:jsm:

lucky me:drummer:
 

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Discussion Starter #8
Donsy and Mitch they won't help him, he has a '10 bike with a single red John Guest fitting on the bottom:wtf:

and it has 3 hose fittings in the pump plate:wtf::wtf: the old bikes had 2

Timber29;

you need to remove the cannister, if you have it (since i don't know where you are) and wye the drain/vent lines together INSIDE the tank

make them ~20cm/8" longer than stock.....then you can change the fuel filter without disconnecting the vent/drain lines

epoxy 2 of fuel pump plate fittings closed.....that way you only need to remove 1 clamp the remove the fuel pump completely

the plastic tank MVs use 2 of the big O-rings .....my '08 910R came with only 1:wtf:
but didn't leak:jsm:

lucky me:drummer:
Yes, I have a Walkman (canister) in my fuel tank also since I’m a California resident. So how in the wide world of sports do I only have one O ring in my tank (the green one)? Also how the #[email protected]! Do you get the red fitting off at the bottom of the tank?
 

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Opps,stuffed up again.I looked at his registry and saw F4 1000 and went by that info.
 

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Yes, I have a Walkman (canister) in my fuel tank also since I’m a California resident. So how in the wide world of sports do I only have one O ring in my tank (the green one)? Also how the #[email protected]! Do you get the red fitting off at the bottom of the tank?
That fitting does not separate from the pump housing.I did a search for you and MV sells the complete assembly for around $900.00.I found a post where a bike shop did a conversion and fixed a John Guest male elbow into the pump housing.Hopefully another member has a quicker solution for you. 61427.jpg
 

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Let's get this right ( cuz I feel like I have fallen down a rabbit hole ) !

MY10
A plastic elbow at the bottom of the plate cracks and then it is not possible remove it and install a new one from oe parts ? and then the official solution is a new fuel pump ? Is that right ?

Joe

Is it feasible to retro fit a pre 2010 pump ?
 

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Yes that's right Joe,apparently the fitting is non-removable from the fuel pump plate and MV only sells the whole fuel pump/plate/fitting as a unit.As I have read when you lift the fuel tank to disconnect the fuel hose the elbow fuel fitting can crack if you are not careful.:bawling:
 

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Yes that's right Joe,apparently the fitting is non-removable from the fuel pump plate and MV only sells the whole fuel pump/plate/fitting as a unit.As I have read when you lift the fuel tank to disconnect the fuel hose the elbow fuel fitting can crack if you are not careful.:bawling:
My Moto Guzzi has same system...

Definitely warrants a bit of research ..:smoking:
 

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wtf????

you folks sure its not removable? Robert, Foxtrot4 and Eileen were here last week with his '10 F4 tank
I replumbed the inside, seems as though the red fitting rotated a bit (15*-20*)

bet there's a snap ring and washer on the inside of the fuel pump plate and O-rings on the shank of the fitting

timber 29;
you pinch the black fitting and it releases (in theory)

Mitch;
MV doesn't sell hub parts either :naughty:

since the John Guests come from England:jsm: and the neck of the fitting failed

i'd remove the broken piece and find out what size hole is in the fuel pump plate then tap the plate 1/4" or 3/8" NTP and buy the CPC male and female metal fittings from Alex at Gutsy Performance.....since Alex only has the 1/4" females.....if you need to go bigger in the plate tap it 3/8"NTP and epoxy a 1/4-3/8 bushing in

an '09 < pump won't work because the FPR is on the return side and there is only one line '10+

sorry MV, its a bogus way of doing it......just like on BMWs:jerkoff::jerkoff:
 

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Discussion Starter #16 (Edited)
So after the removal surgery here is the after action report:

Exhibit A:
The plastic connector, it will spin and spin and spin but you have to break it down one side to release those little metal fingers that hold it down. I worked with a small screwdriver chipping away at little bits. The downside is now I will need to remove the hose from the fuel pump inside as to make sure no little plastic parts, but that was expected.



Exibit B:

The hole..there is also another tiny hole inside that looks like it goes to a regulator.



A closer look...



I've been looking at the John Guest website and I will be doing some additional hunting for the part. I have also enlisted Pro Italia's help in finding a solution after a phone call today, so more to follow. I just wish I had written the part number down off the piece before I mangled it. In the end I think I can tap it but I'm going to try and find the part first.
 

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You have done well to remove that fitting.If you can't get the original,I would do what Noel suggests and measure the hole to see if you can tap to 3/8 NPT and fit the CPC metal connectors,then you will be OK.[/ATTACH]
 

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Discussion Starter #18 (Edited)
The hole looks to be around 4/8" in diameter. That's the plan Mitchy if I can't get the part I will thread tap it. I was thinking also about threading a brass insert and shrink fitting it with some dry ice, but that method sounds like more trouble than it's worth. I am concerned about the diameter being a bit big though.

 

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Discussion Starter #20
here's your pipe tap chart;
http://www.carbidedepot.com/formulas-tap-pipe.htm

looks like you might have to go to 3/8"

remember to back drill the FPR hole, what ever you do
:drummer:
Well I did find a part number from Aprilia: AP8104192 and it's the same fitting used on a bunch of manufacturers fuel pumps also. :smoking:

By back drilling you mean NOT to drill down into where the FPR hole is??
 
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