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B11 etc. gas tank install

Rafael

GT Reference
Joined
Feb 16, 2009
Messages
1,096
Location
San Leandro, CA
Seems we always struggle to get a gas tank bolted back on 'cause of the swelling I suppose. So my buddy developed a fool proof method.

He uses a couple of mallets. See the pic for configuration. Rotate the rear mallet towards the front. This allows you to see into the bolt hole and check alignment before hand threading the bolt
 

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If I run across a really stubborn tank I pull out my scissors jack and a block of wood (to go against tank tab) and jack the ^*%^&% into alignment.
 
The Centauro's are notorious for expanding tanks which open wider and wider. In order to remount mine, I use a hookless ratchet strap which I pass around the front forks then around the tank tab like a big lasso. I make sure the ratchet mechanism is on the left hand side of the bike just behind the fork tubes, and I apply some tension with a few clicks of the ratchet. That is enough to re-bow the tank into the proper position for the retaining screw to go back in.

I think this would work exactly the same way here as an alternative method.

1078 2 x 10 endless ratchet strap yellow 1 375
 
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Are these expanding tanks only happening when the tank is unbolted from the frame for a significant amount of time? I've had no issues, but the tank is only been off for about an hour maximum each time. With this in mind, I will perhaps sit the tank on the frame and bolt it on if I'm taking too long with a task.
 
Interesting responses.

My Norge's slot for that hold-down fastener is WAY past it, so only the saddle keeps it from getting worse, I suppose. I am guilty of leaving the tank off for long periods, mostly because I am so painfully slow -- oh, and lazy -- when doing maintenance.

A new tank is stooooopid expensive, so this winter, I may pull it (again), rinse it well, and consider some coating. If not, a few months of drying might help on its own.

I had never thought about the ratchet persuader, Scott, and will try that, too. My only violent attempts at correction have been limited to cursing and a rubber mallet.

Bill
 
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