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Registered
Join Date: Jan 2008
Location: Baltimore, MD
Posts: 188
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Timing Chain Noise
My 1999 R1100S (50,000 mi) has a slight valve taping at start-up. It goes away after only a few seconds. One fellow told me that this was the timing chain tensioners (one on each side?). Another person said that it is most likely the sliders/rails that the tensions push against the chain with most likely worn.
Has anyone fixed this on their bike before? Is it doing any valve damage? Is this "hot", or back burner stuff? Thanks, Bob K. |
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05-12-2008, 05:08 AM
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Uh....who me?
Join Date: Jan 2000
Location: North Georgia
Posts: 8,813
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Bob,
My bikes ('99 R11S and '04 R11S) did that pretty much all the time. Conventional wisdom says it's the cam tensioners coming up to pressure and taking up the slack. I never worried about it. I think these bikes are more likely to start giving up from the tranny aft....the motors are pretty strong. Back burner for sure.
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Bob Hancock '20 KTM1290 SuperAdventure S, 2006 KTM 660RFR Dakar, 1966 Honda 305 Scrambler, 2019 Camaro 2SS 1LE, 2020 Chevy Trail Boss "There are times when good words are to be left unsaid out of esteem for silence." St. Benedict |
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05-12-2008, 06:41 AM
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Moderator
Join Date: Aug 1999
Location: Austin, TX. USA
Posts: 11,605
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Ditto. Back burner at most. This is normal.
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99 R11S w/ BBP, InDuct, Öhlins, PVMs, Braking, SJ-Filter, ZTech, HIDs D675 R90Cafe R60/2 M900 SV650-SS CBR150R XR125 & CRF175 Motards OnRoad OffRoad Cycles, Austin, TX: BMW, Ital, Suspension, Electrics Dealer for K-Tech, JRI, GP Suspension, Penske, Öhlins, RaceTech, Elka, Wilbers, IKON & Works www.ororcycle.com CMRA EXPERT #841 Various Formula 5, 6 & 7 championships 2006-2012 A3, Navigator, |
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05-12-2008, 06:46 AM
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Registered
Join Date: Jan 2008
Location: Baltimore, MD
Posts: 188
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Thanks Bob & Roger for the advice. I love my "new" bike. I thought that this was note a big deal, but wanted to be sure!
Past rides: 2006 FZ1 2006 MultiStrada 1000 1985 K100RS 1990 GPZ550 Bob K. |
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05-12-2008, 07:33 AM
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Registered
Join Date: Apr 2007
Location: Charlottesville, VA
Posts: 471
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The worn cam tensioner issue mostly affects startup, but it can also affect noise while running. If you really want to do everything within reason to quiet the engine, replace the left tensioner with the newest parts and reduce the rocker arm clearance until you can barely detect vertical motion. That's about it.
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Anton Largiader Charlottesville, VA |
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05-12-2008, 09:17 AM
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Moderator
Join Date: Aug 1999
Location: Austin, TX. USA
Posts: 11,605
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The rockerarm endplay is a very good point. Just enough clearance to move and not bind.
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99 R11S w/ BBP, InDuct, Öhlins, PVMs, Braking, SJ-Filter, ZTech, HIDs D675 R90Cafe R60/2 M900 SV650-SS CBR150R XR125 & CRF175 Motards OnRoad OffRoad Cycles, Austin, TX: BMW, Ital, Suspension, Electrics Dealer for K-Tech, JRI, GP Suspension, Penske, Öhlins, RaceTech, Elka, Wilbers, IKON & Works www.ororcycle.com CMRA EXPERT #841 Various Formula 5, 6 & 7 championships 2006-2012 A3, Navigator, |
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05-12-2008, 09:39 AM
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Registered
Join Date: Dec 2003
Location: Albany, GA
Posts: 4,574
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Pointers on tightening up the endplay?
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05-12-2008, 11:40 AM
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