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PRJKTM 04-10-2013 12:14 PM

990 Adventure Seized rear top case nuts
I've just bought a top case for my 990 Adventure.
I went to fit it tonight and the nuts holding on the back plate are seized solid.
If I pull any harder they will definitely strip the allen head.
I've tried WD40 and heating and no change.

Any suggestions really welcome


Mr_Snips 04-10-2013 01:03 PM

Pb blaster or another good penetrating oil. Start there

ElRod 04-10-2013 02:49 PM

Try a handheld impact driver, the kind you strike with a hammer. Mine is a 3/8" square drive that an allen socket is placed into. Be sure to grind or cut off only what is needed of the hex portion so no driving force is lost to twisting.

gefr 04-10-2013 03:21 PM

These bolts run through the aluminum subframe.
So you can spray them or/and heat them from underneath. The reason they get too difficult is they are sprayed with mud from the rear wheel. Try cleaning them with a wire brush
Hope that helps.

petdav 04-10-2013 07:46 PM

Never-seeze on these bolts
When you finally get them out - I suggest using Never-seeze on the threads instead of Loctite. Also on Chain adjuster bolts to prevent the same thing happening

PRJKTM 04-11-2013 02:33 AM

Done it...soaked in WD40 overnight and used a more substantial allen key with handle.....thanks all

DSM8 04-11-2013 01:13 PM

The Anti_seize is simply the best thing you can do for those bolts, any bolt that is steel going in AL for that matter should be treated with it.

ElRod 04-11-2013 03:23 PM

The threads going into the tail of the frame are steel to steel and I use a drop of permatex blue there. However, the underside of those flat head socket cap screws need the anti-sieze where it goes steel to aluminum.

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