Stanchion damping rod spring washer in "shuttle"?? - BMW F800 Riders Forum & Registry



Remove this advertisement by REGISTERING.

Results 1 to 11 of 11
  1. #1
    Mendologist's Avatar
    Points: 313, Level: 6

    Real Name
    Neil
    Location
    Selby North Yorkshire
    Joined
    Dec 2019
    Online
    04-06-20
    Posts
    13 / 0 / 0 / 0
    Hi everyone.
    Having serious annoying problems in one of my front stanchions.
    What started off as a seal and oil change, has turned into a major problem to say the least.

    When the oil was drained out of the stanchion, 2/3rds of a thin spring washer came out with no sign of the other 1/3rd.
    It looks like the spring washer should put the green sealing washer under a light load/pretension for the damping to work.
    It would appear the washer is made of unobtainium!! Hens teeth, rocking horse poo etc.

    I bought a new Tarozzi stanchion due to not being able to get a washer from any suspension specialist in the UK.
    This has also turned out to be problematic, as in the damping washer (white in the Tarozzi, green in the Showa unit) is of too big a internal diameter for the damping rod/tube. This means there is no damping at all when re-assembled, the oil would appear to move through the washer without resistance, hence no damping!!

    AARGH! Bike in bits for the last month.

    The Tarozzi is going back to the supplier who is just as baffled as I am. Which means trying another manufacturer. ( a genuine one is out of the question at £295.00)
    Has anyone had this problem?

    All help much appreciated.

    All advice much appreciated.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	F800r stanchion spring washer.jpg 
Views:	50 
Size:	2.81 MB 
ID:	360177  
    Good better best, never let it rest, until your good is better and your better is BEST!!
    F800R 2010. MZ TS125 1986. 

  2. Remove Advertisements
    F800Riders.org
    Advertisements
     

  3. #2
    Points: 8,832, Level: 65

    Location
    Berkshire, UK
    Joined
    Jun 2013
    Online
    7 Hours Ago
    Posts
    710 / 0 / 2 / 32
    Which part is on the suspension Diagram? use this link to help us see what it is.

    IIRC the R suspension is different to the ST/S?
    BMW F800ST, 2010, Black, Fuzeblock, Sat Nav, BMW Tank Bag, Givi Touring Screen, 

  4. LikesMendologist liked this post
  5. #3
    Mendologist's Avatar
    Points: 313, Level: 6

    Real Name
    Neil
    Location
    Selby North Yorkshire
    Joined
    Dec 2019
    Online
    04-06-20
    Posts
    13 / 0 / 0 / 0
    Hi Dj123,
    The only part on the BMW parts diagram is the stanchion itself. No internal components are shown/listed.
    In the bottom of the stanchion the "shuttle" assembly is made up of three items, a shaped heavy gauge pressed in washer, a lightweight shaped spring washer and the green possibly nylon round section sealing washer.
    For the sake of a cheap washer, the stanchion is basically junk!
    Good better best, never let it rest, until your good is better and your better is BEST!!
    F800R 2010. MZ TS125 1986. 

  6. Remove Advertisements
    F800Riders.org
    Advertisements
     

  7. #4
    Points: 8,832, Level: 65

    Location
    Berkshire, UK
    Joined
    Jun 2013
    Online
    7 Hours Ago
    Posts
    710 / 0 / 2 / 32
    I've had my forks apart to service them and can't think of what it is you're describing (on ST forks).

    Is it part of number 7 in this diagram?
    BMW F800ST, 2010, Black, Fuzeblock, Sat Nav, BMW Tank Bag, Givi Touring Screen, 

  8. #5
    Mendologist's Avatar
    Points: 313, Level: 6

    Real Name
    Neil
    Location
    Selby North Yorkshire
    Joined
    Dec 2019
    Online
    04-06-20
    Posts
    13 / 0 / 0 / 0
    Hi DJ123, mine is a 2010 model with standard forks, same style and manufacturer (Showa) as my 1998 F650 was.
    Yours has the upside down forks.
    Good better best, never let it rest, until your good is better and your better is BEST!!
    F800R 2010. MZ TS125 1986. 

  9. #6
    MGD109's Avatar
    Points: 3,143, Level: 36

    Location
    Lancashire
    Joined
    Apr 2018
    Online
    1 Day Ago
    Posts
    429 / 0 / 0 / 0
    Motorcycle
    '13 F800GT
    Quote Originally Posted by Mendologist View Post
    .... same style and manufacturer (Showa) as my 1998 F650 was..
    I'm stating the obvious but have you tried contacting Showa directly. It does seem inconceivable that a stanchion is written off due to a washer failure.
    In the Garage 2013 BMW F800 GT,1994 BMW R80 RT,1986 BMW R80 GS,1999 Yamaha SR125
    Sorley missed Honda TLR200
    Enjoy the ride 

  10. #7
    Points: 8,832, Level: 65

    Location
    Berkshire, UK
    Joined
    Jun 2013
    Online
    7 Hours Ago
    Posts
    710 / 0 / 2 / 32
    Quote Originally Posted by Mendologist View Post
    Hi DJ123, mine is a 2010 model with standard forks, same style and manufacturer (Showa) as my 1998 F650 was.
    Yours has the upside down forks.
    All ST models are right way up.
    BMW F800ST, 2010, Black, Fuzeblock, Sat Nav, BMW Tank Bag, Givi Touring Screen, 

  11. #8
    Mendologist's Avatar
    Points: 313, Level: 6

    Real Name
    Neil
    Location
    Selby North Yorkshire
    Joined
    Dec 2019
    Online
    04-06-20
    Posts
    13 / 0 / 0 / 0
    Hi again DJ. -
    AAH, the drawing shows the upside down fork set up on a 2015. Mines a 2010. Thought it was parts diagram for yours.
    Good better best, never let it rest, until your good is better and your better is BEST!!
    F800R 2010. MZ TS125 1986. 

  12. #9
    Mendologist's Avatar
    Points: 313, Level: 6

    Real Name
    Neil
    Location
    Selby North Yorkshire
    Joined
    Dec 2019
    Online
    04-06-20
    Posts
    13 / 0 / 0 / 0
    Hi MGD, had a look on the Showa website, it's pretty much just about the company. It looks like they want to do spares via dealers/specialists. Also I think the shuttle is put into place then the end of the stanchion is rolled over, so if I could get the washer It might be impossible to fit it. (made a plastic one from a lid to try to fit, no way could I get it in the required position to put a little preload on the seal).Click image for larger version. 

Name:	F800r bottom of stanchion.jpg 
Views:	19 
Size:	1.78 MB 
ID:	360393
    Last edited by Mendologist; 03-30-20 at 02:47 PM. Reason: photo
    Good better best, never let it rest, until your good is better and your better is BEST!!
    F800R 2010. MZ TS125 1986. 

  13. #10
    Taglioni's Avatar
    Points: 8,252, Level: 63

    Real Name
    Peter
    Location
    Melbourne, Australia
    Joined
    Jan 2011
    Online
    04-30-20
    Posts
    40 / 0 / 0 / 25
    Quote Originally Posted by Mendologist View Post
    Hi everyone.
    Having serious annoying problems in one of my front stanchions.
    What started off as a seal and oil change, has turned into a major problem to say the least.

    When the oil was drained out of the stanchion, 2/3rds of a thin spring washer came out with no sign of the other 1/3rd.
    It looks like the spring washer should put the green sealing washer under a light load/pretension for the damping to work.
    It would appear the washer is made of unobtainium!! Hens teeth, rocking horse poo etc.

    I bought a new Tarozzi stanchion due to not being able to get a washer from any suspension specialist in the UK.
    This has also turned out to be problematic, as in the damping washer (white in the Tarozzi, green in the Showa unit) is of too big a internal diameter for the damping rod/tube. This means there is no damping at all when re-assembled, the oil would appear to move through the washer without resistance, hence no damping!!

    AARGH! Bike in bits for the last month.

    The Tarozzi is going back to the supplier who is just as baffled as I am. Which means trying another manufacturer. ( a genuine one is out of the question at £295.00)
    Has anyone had this problem?

    All help much appreciated.

    All advice much appreciated.
    Hi, I just rebuilt my F800ST forks due to a leaking seal and found the same partial washer when I drained the oil. couldn't figure out where it came from so reassembled the forks and they seem to be working OK. This washer doesn't appear in the parts diagram and I couldn't find it in the other fork unless it's part of an assembly?
    2009 F800 ST Night Blue ABS RDC Sports Panniers Top Box Remus Hexacone 

  14. #11
    Mendologist's Avatar
    Points: 313, Level: 6

    Real Name
    Neil
    Location
    Selby North Yorkshire
    Joined
    Dec 2019
    Online
    04-06-20
    Posts
    13 / 0 / 0 / 0
    Quote Originally Posted by Taglioni View Post
    Hi, I just rebuilt my F800ST forks due to a leaking seal and found the same partial washer when I drained the oil. couldn't figure out where it came from so reassembled the forks and they seem to be working OK. This washer doesn't appear in the parts diagram and I couldn't find it in the other fork unless it's part of an assembly?
    Maybe lots of others have the same problem, I know it's not part of BMW's service schedule, so won't be discovered until us enthusiasts do the fork oil and seal change.
    I was toying with the idea of just putting it back together. Bought a top quality Italian stanchion, the washer in the base was too large an internal diameter so wouldn't damp only pogo.
    Sent this back and got another Italian/made in EU stanchion from different supplier and manufacturer. It works! the damping rod is a sliding fit in the washer.
    I think the broken steel spring washer puts a little preload on the plastic washer.

    We need someone who knows suspension to put us in the picture re the function of the spring washer!!

    Regards and thanks.
    Good better best, never let it rest, until your good is better and your better is BEST!!
    F800R 2010. MZ TS125 1986. 

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •