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17th April 2012
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Senior Custom Bike Builder
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Join Date: Jan 2008
Location: Brisbane, Australia
Posts: 2,638 Sportster/Buell Model: 1000cc Ironhead Sportster Sportster/Buell Year: 1977 Other Motorcycle Model: 96 KDX200 Dirt Bike
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Is that some sort of fine metal filing i can see over on top of the black bracket in your video?
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24 beers in a carton. ...24 hours in a day . .. coincidence??
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17th April 2012
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Senior Master Custom Bike Builder
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Join Date: Dec 2007
Location: Australia
Posts: 7,848 Sportster/Buell Model: XLCH 1000 Sportster/Buell Year: 1977 Sportster/Buell Model #2: 75 motor in Norton frame. Other Motorcycle Model: 42WLA 45, Harton, Narley Other Motorcycle Year: 1942
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So thats what life looks like if you are a rear cylinder on an Ironhead.
Sounds chain/sprocket related to me.
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In theory there is no difference between theory and practice. In practice there is.
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17th April 2012
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Chief Master Mechanic
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Join Date: Jun 2010
Location: San Diego, C.A
Posts: 478 Sportster/Buell Model: 1974 Sortster
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Quote:
Originally Posted by bobber58
Sounds to me like your chain is either rubbing on the hardtail crossmember or rubbing your rear fender. You don't have a cain tensioner do you? If you do it could have a bad bearing in it. If you dont the chain cam definately be dragging across the frame.
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Ya i am running this chain tensioner... Is that what a bad bearing sounds like? |
17th April 2012
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Senior Master Custom Bike Builder
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Join Date: Dec 2007
Location: Australia
Posts: 7,848 Sportster/Buell Model: XLCH 1000 Sportster/Buell Year: 1977 Sportster/Buell Model #2: 75 motor in Norton frame. Other Motorcycle Model: 42WLA 45, Harton, Narley Other Motorcycle Year: 1942
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Quote:
Originally Posted by mikepeetz
Ya i am running this chain tensioner... Is that what a bad bearing sounds like?
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Lift the chain off the tensioner and spin the roller. It should spin free and without noise and without any notchiness. if you can feel any notchiness when you turn the roller, the bearing is toast. But that still might not be your noise. |
17th April 2012
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Drag Race Champion
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Join Date: May 2011
Location: Boone ,NC
Posts: 382 Sportster/Buell Model: Sportster 1200 .030 Sportster/Buell Year: 1987
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I just fixed a similar noise and it was the chain rubbing the inside of the sprocket cover.
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17th April 2012
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XL FORUM TEAM MEMBER
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Join Date: Dec 2009
Posts: 524 Sportster/Buell Model: xlch Sportster/Buell Year: 1973
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+1 on what hopper said
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hell on two wheels
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17th April 2012
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Bike Builder
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Join Date: Mar 2011
Posts: 1,891 Sportster/Buell Model: xlh convert to xlch Sportster/Buell Year: 1978 Sportster/Buell Model #2: xlch Sportster/Buell Year #2: 1972
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If your gonna do something, do it right!
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17th April 2012
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Senior Chief Master Mechanic
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Join Date: Dec 2011
Location: under a roof
Posts: 973 Sportster/Buell Model: xlh 1000 Sportster/Buell Year: 1977 Sportster/Buell Model #2: XLCH 1000 Sportster/Buell Year #2: 1979
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seems to occur when the rear wheel is turning, I'd get it off the ground and spin the rear wheel without the engine running, should be able to isolate where the sound is coming from easier.
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17th April 2012
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Chief Master Mechanic
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Join Date: Jun 2010
Location: San Diego, C.A
Posts: 478 Sportster/Buell Model: 1974 Sortster
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Quote:
Originally Posted by randy3934
seems to occur when the rear wheel is turning, I'd get it off the ground and spin the rear wheel without the engine running, should be able to isolate where the sound is coming from easier.
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I tried that but i could not get a sound like that.or anything even close... |
17th April 2012
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Senior Chief Master Mechanic 2nd Class
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Join Date: Feb 2011
Location: Rural Ontario
Posts: 1,574 Sportster/Buell Model: FLCH Sportster/Buell Year: 61 Sportster/Buell Model #2: XLCH Kit Bike Sportster/Buell Year #2: 60
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do you have a bolt in this location that the chain is catching on:
it may only catch when you are under load. I have to grind some clearance off a regular grade 8 bolt not the hex head pictured which is obviously sticking out too far but this is what was used when the bottom end was rebuilt for me and if I wasn't paying attention I might have assumed would just fit in and not switched out.
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Scott
'61 'CH
'60 'CH
See No Evo, Hear No Evo, Speak No Evo, Ride No Evo
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.... you better tear the whole motor down!
