2014 Stelvio Leaking gas

[CTYANKEE]

Hey guys,
   Hoping you can help, might not be a big deal, just don't know. I have a 2014 Stelvio. I topped it up with gas a two rides ago and parked it in the garage, temp around 60. The garage started smelling like gas but I thought it was my lawnmower that I had been working on. Took the bike out again for a small ride, so I've probably used around 1&1/2 gallons. Came home today after a few days away and strong smell of gas in garage and a small gas stain under the bike. I opened the gas tank and pressure  immediately escaped (not sure if it's relevant, just throwing it in there). I took off the plastic back above the battery and found a small puddle of gas below the white ring on the back of the tank that was dripping down into the battery tray and out on the floor. (See Pic) The gas has eaten some of the orange paint and is coming from the white inside ring. I cleaned it up and am watching to see if it continues. If it doesn't was it just overfilled? If it does, next steps?
Thanks!
CTYankee

[RANDM]

Someone will pop in soon with specific suggestions - Though
It does sound like you have a blocked vent pressurising the
tank. Did it stop after you popped the cap?

Maurie

[guzzisteve]

Check the hose on the right that it is not kinked as it goes under the tank, you may have fuel in the EVAP system that is to be vented. Too full of fluid w/parked and a pinched line could cause the seal ring on pump to leak and looks like it did.
Time to get rid of the canister and vent to outside air.
I would open the pump cavity and make sure the sealing area is good too.

[CTYANKEE]

"Check the hose on the right that it is not kinked as it goes under the tank, you may have fuel in the EVAP system that is to be vented."

Yes, it's still leaking a bit, I'll check the hose tomorrow, have to leave for the day now unfortunately.

Too full of fluid w/parked and a pinched line could cause the seal ring on pump to leak and looks like it did.
Time to get rid of the canister and vent to outside air.
I would open the pump cavity and make sure the sealing area is good too.

Ok, not familiar with all that, any link you can point me to? I'm fairly mechanical, but not so familiar with this bike.

Thanks again
CTYankee

[guzzisteve]

http://www.guzzitech.com/forums/threads/charcoal-canister-removal-detailed-with-pictures.9202/

[CTYANKEE]

http://www.guzzitech.com/forums/threads/charcoal-canister-removal-detailed-with-pictures.9202/

Perfect, thanks so much!

[leafman60]

You don't have to go to all the trouble of actually removing the canister.  That's a helluva lot of work.

You can simply plug and unplug the tubing to the canister. The canister remains under the fairing but is removed from the fuel tank loop.  You plug the vacuum line, and route the tank vent line along with the overflow line to underneath the bike.

http://www.guzzitech.com/forums/threads/stelvio-canister-quick-disconnect.11035/

.

[CTYANKEE]

You don't have to go to all the trouble of actually removing the canister.  That's a helluva lot of work.

You can simply plug and unplug the tubing to the canister. The canister remains under the fairing but is removed from the fuel tank loop.  You plug the vacuum line, and route the tank vent line along with the overflow line to underneath the bike.

http://www.guzzitech.com/forums/threads/stelvio-canister-quick-disconnect.11035/

.

OK, wow, yea, way easier, doing that today, thank you!

[CTYANKEE]

ok, Leafman, did as recommended, thanks. Still seems to be leaking from pump seal a bit, I've looked around to try to find how to remove and replace with not much luck. Any chance could point me in the right direction?

CTYankee

[CTYANKEE]

or anyone who has an idea how to go about changing the fuel pump gasket,... thanks

[EncoreJoe]

The Moto-international company has an upgraded fuel pump for the Stelvio with instructions and pictures on their web site on removing that cap and fuel filter/ pump assembly.  The gasket is on the fuel filter assembly when removed from the tank.  If fuel level is not very low you will need to siphon some out from filler cap first before removing the pump to avoid spills.

Sent from my SAMSUNG-SM-G900A using Tapatalk

[CTYANKEE]

The Moto-international company has an upgraded fuel pump for the Stelvio with instructions and pictures on their web site on removing that cap and fuel filter/ pump assembly.  The gasket is on the fuel filter assembly when removed from the tank.  If fuel level is not very low you will need to siphon some out from filler cap first before removing the pump to avoid spills.

Sent from my SAMSUNG-SM-G900A using Tapatalk

Thanks, I'll check it out, of course I just topped off the tank before this happened!

CTYANKEE

[leafman60]

Try tightening the large ring nut that holds the pump assembly in the tank.

If the leak persists, you may need a new gasket or you may have a crack etc that is letting fuel pass through.

To replace the gasket, you should be able to unscrew the big ring nut and pull the pump assembly out enough to replace the gasket.

You would need to either remove the tank or drain it and maybe orient the bike with the front end dropped to get fuel away from the rear of the tank.

I hate to say it but, even without the gas leak, you probably need to remove the tank and check those upper motor mounts on both sides. The esteemed Guzzi factory is known for not tightening these properly and they can vibrate out.

Check other threads on this topic.

Also, get a big pull bar, 1/2" drive,  and tighten the hell out of the crash bar mounts at all points. The bike will run smoother.

[CTYANKEE]

Try tightening the large ring nut that holds the pump assembly in the tank.

If the leak persists, you may need a new gasket or you may have a crack etc that is letting fuel pass through.

To replace the gasket, you should be able to unscrew the big ring nut and pull the pump assembly out enough to replace the gasket.

You would need to either remove the tank or drain it and maybe orient the bike with the front end dropped to get fuel away from the rear of the tank.

I hate to say it but, even without the gas leak, you probably need to remove the tank and check those upper motor mounts on both sides. The esteemed Guzzi factory is known for not tightening these properly and they can vibrate out.

Check other threads on this topic.

Also, get a big pull bar, 1/2" drive,  and tighten the hell out of the crash bar mounts at all points. The bike will run smoother.

Very helpful, of course the bike went out of warranty two weeks ago, I'll still call to see if they would cover it. Good stuff, thanks again.

[leafman60]

Very helpful, of course the bike went out of warranty two weeks ago, I'll still call to see if they would cover it. Good stuff, thanks again.

Removing the tank and doing these things are not difficult.  If you are going to be a Moto Guzzi owner, you need to be willing and prepared to do mechanical work.

.

[CTYANKEE]

Removing the tank and doing these things are not difficult.  If you are going to be a Moto Guzzi owner, you need to be willing and prepared to do mechanical work.

.

Believe me , I know , and am capable, but if the warranty covers it, why not use it? Thanks again!

CTYANKEE

[DonTom]

Removing the tank and doing these things are not difficult.  If you are going to be a Moto Guzzi owner, you need to be willing and prepared to do mechanical work.

Isn't that the case with any brand motorcycle with any model?

Or is a  Moto Guzzi a special case?

-Don-  Reno, NV

[pyoungbl]

Isn't that the case with any brand motorcycle with any model?

Or is a  Moto Guzzi a special case?

-Don-  Reno, NV

Special case in that dealers are few and far between.  My dealer gave up the brand a couple years ago (after I bought a Stelvio and V7 from him).  The closest Guzzi dealer is about 75 miles away and sells mostly Triumph.  The next closest is probably 150-200 miles away.  If OP is lucky enough to have a dealer nearby I'd recommend taking the bike back if only to keep the dealer in business.  Most of us do not have that luxury.  That's why the average Guzzi owner has learned the basics about how to take care of the bike....and why this forum is so useful.

Peter Y.

[CTYANKEE]

Special case in that dealers are few and far between.  My dealer gave up the brand a couple years ago (after I bought a Stelvio and V7 from him).  The closest Guzzi dealer is about 75 miles away and sells mostly Triumph.  The next closest is probably 150-200 miles away.  If OP is lucky enough to have a dealer nearby I'd recommend taking the bike back if only to keep the dealer in business.  Most of us do not have that luxury.  That's why the average Guzzi owner has learned the basics about how to take care of the bike....and why this forum is so useful.

Peter Y.

Yes, def lucky, I have two dealers, one about 20 miles away and the other about 35, must be in the land of Oz!

[kenvil1]

Fuel vapours and flip phones were not a good mix (see video). I'm not sure about modern electronic gadgets, but it pays to be wary when using them around gasoline. That's my stick-in-the-mud routine for today. You may now proceed.

https://youtu.be/nyYCu2K-NYQ

[leafman60]

Isn't that the case with any brand motorcycle with any model?

Or is a  Moto Guzzi a special case?

-Don-  Reno, NV

"Guzzi Issues" go far beyond the lack of convenient dealers. 

[DonTom]

"Guzzi Issues" go far beyond the lack of convenient dealers.

Oh, that was what you meant. BTW, I have always lived within ten miles of a Moto Guzzi dealer. However that does little good when on a 2,000 mile ride.

-Don-  Reno, NV