Flywheel help...
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Road Captain
Joined: Sep 2006
Posts: 749
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Flywheel help...
Couple of weeks ago on a run a bros motor quit. Roadside trouble shooting found the top of the crank sensor damaged. Pulled the motor yesterday and tore it down. (2006 95" in a Streetglide). End play (left-right movement) is about 1/4 inch.... Large chunks of metal, flattened out laying in the bottom of the left side case. Very thin pieces of metal were inside the main bearing spacer. At a glance I can't see what has failed... I'm WELL versed in twin cam from the crankcase up. First time into a case.
The cam case showed no signs of metal contamination. Cams look fine. Oil pump no scoring. No signs of metal above cam chest (lifters, pushrods, topend, etc). All bearings intact.
Any ideas? I'm in northern VA.
The cam case showed no signs of metal contamination. Cams look fine. Oil pump no scoring. No signs of metal above cam chest (lifters, pushrods, topend, etc). All bearings intact.
Any ideas? I'm in northern VA.
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Road Captain
Joined: Sep 2006
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Just returned from the indy. A washer from the left side crankshaft "came from together". The metal floating around was from the washer. Flywheels are true. I'll just replace the bearings, washers, etc. and have the flywheels welded while I"m at it.
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Road Captain
Joined: Sep 2006
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that's exactly what I'm doing...new bearings, welding crank pin, putting motor back to stock so he can sell the bike. Bro bought a new Road Glide while on the run...can't mess with money!
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Road Captain
Joined: Sep 2006
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I was incorrect when I stated the problem was related to a washer. The problem was a "apparently) a rod hit the rear cylinder and resulting in a pyramid shaped chunk of the liner breaking off. The missing piece is about 1" on all three sides. The metal in the bottom of the cases was from that chunk.
I was wrong "thinking" the endplay was off 1/4". I've since learned the '03 and later cases with caged bearings have the endplay taken up by torquing the compensator nut. Until now I only had experience with motors with the timken bearings.
I was wrong "thinking" the endplay was off 1/4". I've since learned the '03 and later cases with caged bearings have the endplay taken up by torquing the compensator nut. Until now I only had experience with motors with the timken bearings.
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