Post by: Fstntq on August 31, 2020, 10:34:08 AM
Also best way to minimize light fork scoring. Steel wool? Perhaps emery cloth/ sandpaper but what grit?
thx
MIke
(https://i.imgur.com/xjJFEw2m.png)(http://[img]https://i.imgur.com/xjJFEw2m.png)[/img]
(https://i.imgur.com/C310q3Gm.png)
Post by: Fstntq on September 06, 2020, 09:51:26 AM
Post by: Fstntq on September 08, 2020, 05:56:37 PM
(https://i.imgur.com/Uaoj7aFl.jpg)
Post by: Laitch on September 08, 2020, 07:01:49 PM
Finally got to a dealer and they said dome faces down and dish/cup faces up. .If the red arrow in the attached diagram points to the "dome" and the green arrow points to the recessed cup, they'd both need to be facing up, according to the perspective I see in your photo. Could you clarify? It seems to me you installed it correctly regardless.
4Vfront suspension steel ring.jpg (7.99 kB . 215x267 - viewed 397 times)
Post by: Fstntq on September 09, 2020, 07:53:39 AM
If the red arrow in the attached diagram points to the "dome" and the green arrow points to the recessed cup, they'd both need to be facing up, according to the perspective I see in your photo. Could you clarify? It seems to me you installed it correctly regardless.
Probably a semantic issue and lack of clarity on my, or the dealers part. I should have said convex side or concave side. Clymer, anticipating the issue, showed a picture which is opposite of the way I installed it. The question is, why did BMW use this type of washer on the K1 where the K100RS is flat? When installed as shown, the raised bit catches/mates to the interior lip of the oil seal which is why I thought it might sit that way. I can't think of any other reason to not have it flat, at least on the downward facing side. the seal was leaking at rest previously, currently nothing but it has not been ridden. I'll ride it a bit before putting all of my body work back on to see how it fares.
Post by: Laitch on September 09, 2020, 08:19:16 AM
Probably a semantic issue and lack of clarity on my, or the dealers part. I should have said convex side or concave side. Clymer, anticipating the issue, showed a picture which is opposite of the way I installed it. The question is, why did BMW use this type of washer on the K1 where the K100RS is flat? .You installed it concave side up? My understanding is still vexed but probably not convexed. :laughing4-giggles: Anyway, according to how I interpret Max's parts fiche, the K100RS 4V depicts the same washer as the K1 in its diagram and it's an entry in the parts list.
Post by: Fstntq on September 10, 2020, 06:02:05 PM
You installed it concave side up? My understanding is still vexed but probably not convexed. :laughing4-giggles: Anyway, according to how I interpret Max's parts fiche, the K100RS 4V depicts the same washer as the K1 in its diagram and it's an entry in the parts list.
You are correct. I misspoke. I bought a set of used K100RS forks so I could have a spare stanchion in case my existing would not hold a seal. I dug out their washer and it is indeed the same. I installed it concave side up. Interestingly the land that the washer sits upon has a mirror step built into it effectively creating a small void, axially between the washer and the land with only the outer third of each in contact with each other.
Post by: Cafe racer on September 20, 2020, 05:54:55 AM