Posted by Jujitsu Lizard on January 18, 2009, 4:33 pm
The rear of my fuel tank is held down by a single bolt that only screws into
the frame to a certain extent (there is a large unthreaded portion of the
bolt).
There is a bit of play even when it is properly torqued (the bolt is in as
far as it will go). If I lift up on the rear "tab" of the tank, there is
probably several millimeters or more where the rear of the tank is
completely free to move up and down.
I'm probably going to double up on some of rubber (there are rubber washers
and so on involved) to eliminate the free play (just to get to the point
where it is held semi-firmly by the rubber).
Is that a sane thing to do?
Thanks.
--
Jujitsu Lizard (jujitsu.lizard@gmail.com)
Posted by Mark Olson on January 18, 2009, 4:46 pm
Jujitsu Lizard wrote:
> The rear of my fuel tank is held down by a single bolt that only screws into
> the frame to a certain extent (there is a large unthreaded portion of the
> bolt).
>
> There is a bit of play even when it is properly torqued (the bolt is in as
> far as it will go). If I lift up on the rear "tab" of the tank, there is
> probably several millimeters or more where the rear of the tank is
> completely free to move up and down.
>
> I'm probably going to double up on some of rubber (there are rubber washers
> and so on involved) to eliminate the free play (just to get to the point
> where it is held semi-firmly by the rubber).
>
> Is that a sane thing to do?
Yes.
It's also pretty sane to simply leave it the way it is, unless
the tank is moving around to the extent that it is rubbing on
something in a way it is not supposed to do.
Posted by St. John Smythe on January 18, 2009, 4:47 pm
Jujitsu Lizard wrote:
> Is that a sane thing to do?
While it's not *not* sane, a saner thing would be to check the parts
fiche for the bike to confirm your setup had the right bolt, rubber
pieces, etc.
On the other hand, lots of us (not necessarily sane) would just get
enough rubber pieces in there to keep the tank from being loose.
--
sjs
Posted by The Older Gentleman on January 18, 2009, 5:09 pm
> The rear of my fuel tank is held down by a single bolt that only screws into
> the frame to a certain extent (there is a large unthreaded portion of the
> bolt).
>
> There is a bit of play even when it is properly torqued (the bolt is in as
> far as it will go). If I lift up on the rear "tab" of the tank, there is
> probably several millimeters or more where the rear of the tank is
> completely free to move up and down.
>
> I'm probably going to double up on some of rubber (there are rubber washers
> and so on involved) to eliminate the free play (just to get to the point
> where it is held semi-firmly by the rubber).
>
> Is that a sane thing to do?
>
Depends. There might be a rubber washer missing. In my experience,
there's usually some free play because tanks jiggle up and down on their
mounts, and if they were rigidly fixed, they'd probably split.
But if it ain't broke, don't fix it.
--
BMW K1100LT Ducati 750SS Yamaha XTZ660 Tenere Honda CB400F SH50
If you don't know what you're doing, don't do it. Workshop manual?
Buy one instead of asking where the free PDFs are
chateau dot murray at idnet dot com
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> the frame to a certain extent (there is a large unthreaded portion of the
> bolt).
>
> There is a bit of play even when it is properly torqued (the bolt is in as
> far as it will go). If I lift up on the rear "tab" of the tank, there is
> probably several millimeters or more where the rear of the tank is
> completely free to move up and down.
>
> I'm probably going to double up on some of rubber (there are rubber washers
> and so on involved) to eliminate the free play (just to get to the point
> where it is held semi-firmly by the rubber).
>
> Is that a sane thing to do?
Yes.