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29th June 2009
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Master Mechanic
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Join Date: Jul 2008
Posts: 280 Sportster/Buell Model: 82 xls 1000 Sportster/Buell Year: 1982
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Sick Ironheaed, please checkout video
I had a engine knock. Yesterday I adjusted tappets, and think I did it right. After about 30 miles the knock got louder, and sounded as though I put some steel ball bearings in my engine, or perhaps a hammer or a pry bar and some wrenches. A couple of guys that were riding old shovel;heads stopped by and checked it out as I was at the side of the road. One guy said that it sounded like I broke a valve or a spring. I towed bike home and shot this video so as to get advice from some more experienced people than me. On the video the sound quality is not the greatest, but it seems to me that the sound is coming form the cylinder, perhaps the top end. I wish that you could hear the rattle more. In person its louder, but the microphone on my camera is kind of crappy and is jsut picking up the sound of the bikes exhaust.
Any advice of people who might know what it is would be gratefully appreciated.
http://www.youtube.com/watch?v=w0qZc6AxHFE
I really hope that its the top not the bottom end.
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http://picasaweb.google.com/dan.maltby/BackFromRebuild#5388709149769213666
82 xls Roadster/Andrews PB+ Cams/S&S Super E / drag pipes/ 2"baffles/exhaust wrap
None are more hopelessly enslaved than those who falsely believe they are free!
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29th June 2009
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Biker
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Join Date: Oct 2008
Posts: 82 Sportster/Buell Model: xlh1000 74/xlh1000 81 Sportster/Buell Year: 1974 Sportster/Buell Model #2: 81 Other Motorcycle Model: Honda CR250 chuck chaser
Reputation: 18
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noise
i take it you have enough oil??? oil pump ok??? is it pumping oil?? just a thought i hope its not too hardcore......cheers
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29th June 2009
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Senior Chief Master Mechanic 1st Class
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Join Date: Apr 2007
Location: North East US
Posts: 1,274 Sportster/Buell Model: xlx Sportster/Buell Year: 1985 Sportster/Buell Model #2: XLCH Sportster/Buell Year #2: 1979 Other Motorcycle Model: Sprint ss Other Motorcycle Year: 1967
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It dosn't cost anything to recheck your work. Adjust cold.
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29th June 2009
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Senior Custom Bike Builder
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Join Date: Mar 2007
Location: Alexandria, VA
Posts: 2,532 Sportster/Buell Model: XL 1200R Sportster/Buell Year: 2007 Sportster/Buell Model #2: XL 883 Sportster/Buell Year #2: 1986
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My advice- quit starting it and take it apart before you make it worse.
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Never take life seriously. Nobody gets out alive anyway.
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30th June 2009
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Senior Master Custom Bike Builder
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Join Date: May 2006
Location: Woodstock, Ga.
Posts: 3,650 Sportster/Buell Model: 1200C Sportster/Buell Year: 2006
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Quote:
Originally Posted by Jackster
My advice- quit starting it and take it apart before you make it worse.
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My thoughts exactly!!
It'll be cheaper to bust it open now, than to fix the damage caused later...
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Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well armed lamb contesting the vote!
In a world of deceit, telling the truth becomes an act of revolt.
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29th June 2009
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Greasemonkey
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Join Date: Jul 2008
Posts: 115 Sportster/Buell Model: XLCH Sportster/Buell Year: 1974
Reputation: 53
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I agree with runningmouse. check those tappets!
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Bill K. Rowley MA
74 xlch 76 Engine conversion, kick/Electric, Lockhart oil cooler, Super E carb
01 Audi A4 1.8T 07 Jeep Wrangler JKL (4 door) 04 Bigfoot 29SL Class C
"Yours might cost more, but mine is an Iron Head!"
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29th June 2009
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Land Speed Record
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Join Date: Jun 2005
Location: Mid-Michigan
Posts: 790 Sportster/Buell Model: Ironhead 1000 Sportster/Buell Year: 1973
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yeah, +1, readjust while cold. I doubt its in the bottom end, only because you adjusted the top end just before this started. Look back to what you changed... Might not have enough clearence, or may have too much...
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Chris B. -'73 Ironhead
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29th June 2009
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Senior Master Custom Bike Builder
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Join Date: May 2007
Location: Puget Sound--Washington State
Posts: 3,858 Sportster/Buell Model: Sportster XLH Sportster/Buell Year: 1961 Sportster/Buell Model #2: Sportster XL Sportster/Buell Year #2: 1957 Other Motorcycle Model: XLH 62, 65, 68, FLH 1970
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By all means, check the pushrod adjustment first. You may not have tightened one of the locknuts properly, and the tappet screw backed off. That would account for the sound starting during the ride. It sounds to me like a pushrod rattling around. And of course, the old adage holds true that whatever you did last is most likely the problem.
You might not have had the tappet at the lowest point when you adjusted the pushrods. That, too, would cause the them to be loose.
__________________
If I could only live at the pitch that is near madness
When everything is as it was in my childhood
Violent, vivid, and of infinite possiblilty:
That the sun and moon broke over my head.--Richard Eberhart
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29th June 2009
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Known Troublemaker !
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Join Date: Jul 2006
Location: Lexington, NC
Posts: 7,390 Sportster/Buell Model: Sportster 1200C Sportster/Buell Year: 06
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+1 On the above Replies !!
Doublecheck what you done last !
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29th June 2009
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Senior Chief Master Mechanic 1st Class
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Join Date: Jan 2008
Location: Down the Shore
Posts: 1,274 Sportster/Buell Model: XLH-1000 Sportster/Buell Year: 1975 Other Motorcycle Model: Honda Spree Other Motorcycle Year: 1987
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There is an old mechanics rule that says "if you have a problem, go back and check what you did last. More times than not you will find the problem".
I agree to check the adjustment.
Chris
__________________
It’s not really your bike unless you work on it yourself!
"Believe nothing, no matter where you read it, or who said it,
no matter if I have said it, unless it agrees with your own
reason and your own common sense."
-Buddha (536 B.C.-483 B.C.)
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