front-fork-noise-31-009-83-2082-883

Service-Informatio&n Group 31 August Bulletin No. : Front Fork 1983 31 009 83 (2082) – For U.S.A. and Canada Only – RE: FRONT FORK NOISE Dear Dealer: The telescopic front fork dampers on all models except R65′ and R65LS now come equipped with a new spring-loaded valve housing, which eliminates axial play that may cause front fork noises. It is no longer necessary to use shims for spacing as advised in ‘Service Information 31 001 82 (2046). The valve washer is now provided with a chamfer that serves to cut down the noise level even further. ),-~se route and initial before filing Note that this _.chamfer_ is always installed towards the ·perforated disk;._ _-, ,,:.- · ;_:_, Whenever_,repairs are performed, make:. sure both f ark dampers are _equipped with this new spring-loaded valve housing. ..,.-:•-; 2 Valve Disk Washer Part No. 31 42 1 Valve Housing Part No. 31 42 2 301 Spring Part No. 31 42 1 241 66 Ring Part No. 31 42 2 301 886 Retaining Ring Part No. 07 11 9 934· 64 To install the two-part damper housing, use special tools No. 88 a·s 6 ·314 690 (clamp) and 88 88 6 314 693 (adaptor press). Fix the clamp and adaptor press as shown in the drawing below . .. Using these tools, you will be able to compress the valve housing spring so it will be easy to install the retaining ring. Fork Tube \ Adaptor Press Clamp Tool Sincerely, BMW OF NORTH AMERICA, INC. /?~,;z;;;;J__J Richard Dampf National Technical Manager RD/cs (