Tank swollen - wont go back on! |
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WillW
Senior Member Joined: 14 Apr 2017 Location: South Devon Status: Offline Points: 118 |
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Yes it had me baffled for a while - "it must've swollen - nah don't be daft, how's that even possible..."
Now we know...
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it's about the ride
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iansoady
Senior Member Joined: 23 Jul 2017 Location: Redditch Status: Offline Points: 2402 |
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I'm not convinced ethanol is the problem, although people blame it for everything. Exactly the same problem happened with Hinckley Triumph Tigers (the "Girly" model) in the early to mid 2000s before ethanol was widely used. I believe the plastic tanks for those bikes (I had one and loved it) were made in Italy.
I think it's more a case that they distort when off the bike due to the weight especially if they have fuel in them. Despite all the stories I've never had ethanol problems with any of my "classics" - I can leave them in the garage for 6 months with fuel in the tank and they'll start first kick on that when I drag them out. |
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Ian
1952 Norton ES2 1986 Honda XBR500 1958-ish Greeves/Triumph in progress |
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Jim Mac
Moderator Group Joined: 14 May 2014 Location: Edinburgh Status: Offline Points: 3202 |
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Star Tron was a thread on the Wildgoose forum - apparently nothing more than Naptha but 5 X the price- but dont know we can get that in UK
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V85 TT Trzvel BMW R45
Too old to die young |
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BobV7
Senior Member Joined: 20 Nov 2014 Location: W. Sussex Status: Offline Points: 2740 |
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As much as I hate to disagree with a fellow Guzzi rider, I've had 3 plastic tanks replaced under waranty for the same fault and they're all the bloody same! Why do you think all V7 models now come with metal tanks?
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V7 Classic Black and gold was the best. But green & black was nice too. Now blue is in!
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WillW
Senior Member Joined: 14 Apr 2017 Location: South Devon Status: Offline Points: 118 |
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I'm convinced Ethanol IS the problem
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it's about the ride
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Adam
Senior Member Joined: 19 Jul 2017 Location: UK Status: Offline Points: 127 |
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My Gas Gas trials bike tank is ok, but I know of 3 others that have expanded enough to be unusable, only by chance I live near a BP garage, wonder if theirs has less ethanol.
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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My Norge tank has definitely not distorted, it has expanded. The rear bolt no longer fits and at the same time the front fork yokes now hit the front of the tank at full lock, had to file about 1/4 inch off to clear.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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BobV7
Senior Member Joined: 20 Nov 2014 Location: W. Sussex Status: Offline Points: 2740 |
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Perhaps Ian would tell us which Moto Guzzi he has as I don't see it listed and all his comments seem to reference old British iron?
Edited by BobV7 - 02 Aug 2017 at 13:44 |
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V7 Classic Black and gold was the best. But green & black was nice too. Now blue is in!
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cyclobutch
Senior Member Joined: 08 Sep 2015 Location: Essex Branch Status: Offline Points: 750 |
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Checking back - Ian is an ex and future owner. Gonna part ex a 400/4 for a V50 or similar.
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Butch
V50 II - 'The Black Pearl' T3 - 'Blue' Eldo Loop - 'Jug' |
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jef
Falcone Joined: 11 May 2015 Location: Cambridge Status: Offline Points: 22 |
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It appears that the chromium plated plastic tanks had problems. I saw one, and assumed that there was no give in the metal plating, so it cracked and then peeled.
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