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After the rear suspension started knocking on smaller/faster bumps on a ride and finding the rear end had noticable play at the lower shock mount I've found that the (magnesium alloy) rocker links have play/ovalised where the lower shock mount bearings sit. I swapped the bearings for new ones (originally thinking they were the cause) and the play/ovalising is still the same
Is there any way to fill the ovalised gap in without risking permanently fixing the bearings into the rocker links?
loctite bearing fit [i]might[/i] do the job.
Best case would be to have the rockers machined to suit larger bearings, or machined & sleeved to suit the std bearings - won't be cheap unless you can do it yourself, or know someone with a machine shop.
Failing that you could use Loctite bearing fit, but you'd struggle to get them out again without using heat.
Removing material from a highly stressed member like a rocker linkage would be, perhaps, a bad idea?
PTFE tape,if you can get it in ?
Been using this fix on "Hula hoop" shock bushes for the past 18 mths on 2 FS bikes after I got fed up with buying them every few weeks/months.It last about the same time as a bush too.....
Scienceofficer - you would only need to remove enough to get the bore round again, or at least to the next sized bearing. Not ideal if you had to machine a lot away, but I'd say 1mm on diameter wouldn't be detrimental, don't quote me though.
If you were worried about weakening the rocker by removing material you could loctite a sleeve in place and use a smaller bearing, but that would maybe mean shorter bearing life.