Klunk at front

[LesT]

I recently became aware of a knocking sound from the Front suspension. Investigation showed it to be the Front shock, lower mount where it fastens to the 'U' bracket on the Telelever. I removed the bolt and note that the holes in the 'U' bracket are slightly oval. Tightening the (previously loose) bolt seems to have cured it, but this is only a temporary fix.
Anyone else experienced this ?
Any cures ?

LesT

'94 R1100GS

 

[MikeO]

Les,

bummer. I'm not familiar with the bracket in question (& my bike's not handy to take a look), would it be able to take a brass bush? That would be the ideal solution, otherwise I'd guess you are looking at replacing/refurbishing the wishbone.....

MikeO

 

[boxer]

Funny you should mention this because I've recently become aware of a clunk as the front wheel hits the ground as the bike is rolled off it's center stand.
Mine's an '98 1100GS with Fournales suspension front + rear.

I've been unable to figure out what the cause of the clunk is and to be honest, I've not even considered the lower bracket being oversize/worn.

You don't say when the clunk happens, but it occurs to me that to get a clunk sound some things got to by pretty loose. The lower mounting bolt should by very tight and even with a bit of wear it seems unlikely that any movement would be sufficiently large or rapid to produce an audible clunk.

Just a thought but, could it be the brake pads rattling because you've no spring on then?

MikeO's suggestion regarding a bush is worth considering. However, the size and position of the braket'll make it difficult to bush.

 

[Timolgra]

The usual repair for refurbishing holes that have worn oval is to tack weld a washer of suitable size to both outer sides of, in this case the 'U' bracket and if necessary using a slightly longer bolt.
Thicker washers are better.
Tim

 

[LesT]

I get the clunk when coming off the centrestand. Also when riding on cobbles (I live up north !) or very rough surfaces. It all disappeared when I tightened the front shock lower mounting bolt, but this is obviously a short term measure. Just wanted to consider all the solutions.

LesT

 

[LesT]

If I go for the welded washers and the longer bolt, will any bolt do ?

LesT