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Offline Doofy

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Slight play after torquing fuel tank mount bolts
« on: February 06, 2019, 02:03:37 AM »
Hi,
I have a question regarding play at the fuel tank mounting bolts.
I've just reintalled the fuel tank after doing some winter maintenance.
First time doing this with the 2017 cb500x.
All hoses and fuel pump connector reconnected fine and aligned in their correct place.
Reinstalled the 2 fuel tank mounting bolts and collars up front.
Torqued mounting bolts to service manual spec of 7 ft/lb.
However if I attempt to lift up on the tank from the front, I can see about 1mm of free play at the 2 front mounting bolts - between the rubber grommets.  And that's if I lift with a decent amount of force.

Can someone advise whether this is a normal amount of play once torqued down, or is this too much?
I still have side panels off at the moment. Perhaps those not being mounted allow it more room to move. Maybe it snugs down once they're back on?
Wouldn't mind having some input from those more experienced than I.
Thx.
D.  :002:

Offline EscCtrl

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Re: Slight play after torquing fuel tank mount bolts
« Reply #1 on: February 06, 2019, 06:04:29 PM »
Something seems off. My tanks will just barely move on the front mounts and that using my weight to force it to move. I would disassemble the front mounts, make sure the rubbers are seated properly, the metal inserts are in place, and retorque the bolts.

Offline Doofy

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Re: Slight play after torquing fuel tank mount bolts
« Reply #2 on: February 07, 2019, 03:47:26 AM »
Thanks for the feedback - yeah I figured it seemed suspicious.
Tomorrow I will do as you suggested and disassemble it again.
Cheers.
D

Offline EscCtrl

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Re: Slight play after torquing fuel tank mount bolts
« Reply #3 on: February 07, 2019, 12:12:51 PM »
*Originally Posted by Doofy [+]
Thanks for the feedback - yeah I figured it seemed suspicious.
Tomorrow I will do as you suggested and disassemble it again.
Cheers.
D

You're welcome. I'm sure it some little something that's off. If you don't get it, I'll try to post a pic of mine to compare.

Offline Doofy

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Re: Slight play after torquing fuel tank mount bolts
« Reply #4 on: February 08, 2019, 01:44:28 AM »
I had a chance to reseat and retorque the bolts and the play is a lot less after that.
There's still a little bit - but I think I know why.
I have a full fuel tank with stabilizer for winter storage - so the weight is compressing the lower half of the rubber grommet slightly at rest.
This allows room for a small gap between the tank and the upper half of the rubber grommet. It's now only about 0.5mm
I've snapped a picture of what it's like.



Do you think that would be OK/is normal?
Cheers,
D.

Offline EscCtrl

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Re: Slight play after torquing fuel tank mount bolts
« Reply #5 on: February 08, 2019, 10:33:12 PM »
That's how mine looks.  :152:

Offline Doofy

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Re: Slight play after torquing fuel tank mount bolts
« Reply #6 on: February 09, 2019, 03:39:14 AM »
Awesome!
Thanks for your help!  :002:

Offline EscCtrl

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Re: Slight play after torquing fuel tank mount bolts
« Reply #7 on: February 09, 2019, 04:02:45 PM »
*Originally Posted by Doofy [+]
Awesome!
Thanks for your help!  :002:

You're welcome. Happy I could be of help.

 


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