Sub Frame Rivnuts

[bluestoesonnose]

Hi All, the rivnuts that hold the seat cowl on are spinning in the frame when I try to undo the allen bolts that hold the seat cowl on, and ideas how I get them to stop doing this?

cheers
Blues

[tony.mon]

Not uncommon, one option is to disconnect and remove the rear light and just stretch the rear plastics up over the subframe, pivoting on the undo-able fixings.

Another possibility is use a hex drive in a drill set on reverse, just spin them until the aluminium well nut gets hot; it then expands and suddenly grips the hole, shocking the bolt undone.

Doesn't always work, though, and don't do it long enough to melt the plastic.

Last option, slide a hacksaw blade down between subframe and plastic, and cut them off.

[Jester666]

I had this problem and ended up drilling them out. drilling right through the subframe and using a longer bolt and nylock nut.

Bit of a pain when removing the rear panels but it's a solution.

[vtrsteve]

If it was me I'd drill out the bolt and the subframe and put a long nut and bolt thru it..... or if it's on a pristine bike then for what it would cost I'd buy a second hand subframe.

[Diabolus]

One of mine does it, I can just about squeeze some terminal pliers in to grip the spining nut enough to undo the hex bolt.




im replacing the sub frame eventualy so persevere with undoing it this way

[bluestoesonnose]

Thanks for that I'll give it a go laters

Thanks
Blues

[bluestoesonnose]

Hi Diabolus,
It worked, many thanks, I can now really get in there and finish the spring clean.

Cheers
Blues

[Diabolus]

Hi Diabolus,
It worked, many thanks, I can now really get in there and finish the spring clean.

Cheers
Blues

I thought it was just mine I was pulling my hair out as to how to undo the hex bolt and thought of the flat terminal pliers as a last ditch effort I'm going to get another sub frame make sure the spining rivnuts are sorted and p/c it black prior to fitting