Do remove your swing arm . . .

[Notty]

Good job you decided to grease the bearings or who knows how bad that would have got !! 

[seth]

That needs welding then reaming back to proper size .
Even then I'd be more inclined to get a replacement as if the metal is that stressed/weakened it can't be trusted.

[lloydjames]

I'm no welder but almost anything can be repaired these days.

I can imagine any weld would need to be inside and outside the bore of the bearing recess. If it only needs to be on the outside then the inside face is surely going to be affected in some way as bearing seats are very high tolerance. As such, the inside bore will need re-milled to exact size in order to provide a perfect interference fit for the bearing. After this, you will want to restore the surface finish. All of this isn't going to come cheap. I'm guessing the £150 people are asking on Ebay for a swingarm will be worth the peace of mind and may work out cheaper.

[Andre]

I would ask why the crack happened. It's not the first time I have read about this happen on the 14. And so far it's been on the right side. IMO (not everyone agrees) it is because no attention was given to the issue in the attached screenshot.

[lloydjames]

I would suggest you might be right Andre.

This picture needs added to the download section i think (unless its already there  )

[Andre]

It is already in the download section - in the Service Manual.

[gsxbarmy]

Well spotted Andre. I'll add a separate "sticky" so it doesn't get lost 

In fact I've just done it http://gsx1400owners.org/forum_test/index.php?topic=2420.msg29206#msg29206

[lloydjames]

Strange how the Thrust Shim isn't identified on Robinsonsfoundry fiche 

Are there any other parts catalogues on the interweb?

[Andre]

Sorry, kinda knew this sort of question would come up. Just didn't feel like to preemptively go through the work to explain in previous post

Robinsons fiche (and all others as well? ) shows the Thrust Shim (Cap) on the wrong (left) side and it calls it PIVOT CAP (#9 on their fiche). The Suzuki part number for the Thrust Shim is 61264-42F00



Compare this to the Service Manual's graph and you see that it does not show that item at all. Doesn't need to as it is not a parts fiche.

[lloydjames]

That's not a very good picture of it if it is either. When I removed my swingarm to have it powdercoated, it looked nothing like that.

Mine looked like a large thin washer with cupped outer edge not too dissimilar in shape to the bearing dust seal (item 6), only made completely of metal.

I had to remove mine as the gap had reduced as a result of powdercoating the frame and swingarm. This gap is something i'm now conscious I have to check whenever I service the bike. Im not looking forward to ever having to refit it if the powdercoating wears down 

[KiwiCol]

All this scary stuff about shims or no shims & check 1 mm gap.  Bloody hell, I was getting quite confident about pulling the swing arm off & re-greasing & putting it back on, now there's gaps to check & the possibility of cracking the swingarm if you do it wrong, think I'll leave the bloody thing alone till it 'seizes up',  then I'll have a crack at it.

[Speedy1959]

When I removed the swing arm I noticed the following..
1. When removing the rubber chain guard there was a thin shim type of washer underneath it.. (Number 5).
2. I remember the pivot cap (Number 9) WAS installed because it fell of the pivot shaft locating stub on the RIGHT side of the frame when I was having an interesting time trying to replace the arm. I wouldn't have noticed it was there if it hadn't fallen off once.. The grease held it in place.
So in my case the "shim" is definitely in place !

I didn't measure if it needed it or not but the fact it was already there and that I managed to replace the swing arm (eventually) would say it was needed.
Does what I am surmising make any sense?

As I said initially..
Leave your swing arm alone because sometimes ignorance is bliss. 
On a positive note, I will be bloody fast at swing arm removal next Saturday !!

P.S I ended up using a car jack under it to replace it because when trying to locate the arm the pivot cap dust seal (Number 6) kept falling off.
The jack held the arm at the right elevation then I could push then tap home gently with a rubber mallet.

[Speedy1959]

Being an OCD Geek Putts I actually photographed underneath my bike with the arm removed.
You can see the "Thrust Shim" (Number 9) is in place on the right side of the bike !

[grog]

Agree Col.

[Notty]

Agree Col.

I am with you Col