part left over after assembly.....

Shamefully i want to call for all your help in determing the function and position of a steel ring that was left over after reassembling my 2003 1150 GSA engine. I removed the exhaust, tank, injection and took the engine completely apart. During assembly i searched closely for any possible position of this ring.

Specifications: Steel (hardened) ring, OD=41,6mm (1,64") ID=36,25mm (1,43") thickness 2,17mm (0,085")

Anyone seen this part somewhere?

Thanks in advance..

Martien

Gasket where exhaust pipe meets head?

Did you happen to change the fork seals sometime? Looks to be the spacer beneath the fork seal.

I did not have a chance jet to look at the bike itself, but according to the parts fiche no such part is used at the exhaust or the front forks..

Thanks for the feedback anyway! I am starting to think the previous owner used it as a temporarily problem solver that turned pertmanent, but where????

Regards!

Martien

hmmm you sure?
http://www.maxbmwmotorcycles.com/fiche/DiagramsMain.aspx?vid=51759&rnd=04282014
<table cellpadding="0" cellspacing="0"><tbody><tr><td style="width: 17px; border-bottom: solid 1px #666;" align="center">05</td><td style="width: 85px; border-left: solid 1px #ddd; border-bottom: solid 1px #666; font-weight: bold;" align="left"> 18 21 1 342 463</td><td style="width: 235px; border-left: solid 1px #ddd; border-bottom: solid 1px #666; font-family: Arial Narrow;" align="left"> EXHAUST SEAL</td><td style="width: 30px; border-left: solid 1px #ddd; border-bottom: solid 1px #666;" align="right"> </td><td style="width: 35px; border-left: solid 1px #ddd; border-bottom: solid 1px #666;" align="right">2 </td><td style="border-left: solid 1px #ddd; border-bottom: solid 1px #666; width: 100px;" align="right">
</td></tr></tbody></table>

Number 5

I did look at that parts fiche but the "seal" looks to have two holes to accomodate the bolts...

that and since when were manifold "seals" made of hardened steel ...

Just go on a ride at lower speeds just in case of a major failure. Either your problem will show up or thats a part for the extra bin. Either something will leak or break if its major. Be safe.

I just trashed 4 different sizes for Honda's.

It's not a seal for the exhaust port. The flange seals to the head with a flat oval gasket with holes for the exhaust flange studs. Perhaps it isn't part of the engine.

Gearbox been apart? Looks like a gear shaft spacer washer to me?

Good to know!

If I were the OP, I would be poring over the 'fiche for every part of the engine that I touched.

It goes over your timing chain cover on your head

Deleted the picture cause i thought it was rubber. Should of read the entire post.

This looks like a ground polished spacer and I will say "Timing Gears, Transmission".

I bet that #2 is not a polished STEEL ring.
O-Ring is a soft material Seal.

rubber.

Am I the only one who would be more, rather than less, nervous about where that ring belongs after hearing numerous guesses, some of which are obviously uninformed guesses? (No disrespect intended, and JVB gets a heavily weighted positive score, of course.)

I'd be talking to the most experienced certified BMW tech I could find. Maybe two or three of them. Although I'd be even more nervous if THEY didn't have one common, boilerplate answer to my question.

Of course, I don't have the cojones to have dismantled my engine to begin with, so...

Well shit from phone it looks rubber. That is not number 2 it is steel.