25 miles into 95 inch build. Problems...
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Joined: Sep 2012
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From: OHIO
25 miles into 95 inch build. Problems...
1999 flhtc, 95 inch flat tops, 83 cc milled otherwise stock heads, Andrews TW21 cams, SS super e carb. I have been taking bike on short runs this spring breaking her in gently but not babying it. I've hit about 25 miles and bike was running great. All of the sudden start to hear a slight tick from front cylinder area. I ease it towards home thinking maybe front exhaust gasket (ive had problems getting good seal). Get 1 mile from home and tick becomes knock. Bike loses power and stalls out. Trailered bike home. First thing I did was a compression check. Bike was nearly completely cold because I had to walk home get trailer etc... Both cylinders at 180 psi. Did I break a valve? Valve spring? Any similar experiences out there? Obviously im going to take apart but trying to get some encouragement. Im sick about it! Thanks for any help.
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Joined: Sep 2012
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From: OHIO
I just thought about it and i guess if it had a broken valve or spring i would think i would have no compression. If compensator came loose would it cause engine to loose power and not want to run?
Tourer
Joined: Oct 2008
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From: NE, Ohio
Sorry to hear you have problems as I am in the middle of a similar build and have mine apart, many possibilities. Ticking to knocking, maybe oiling problem. Keep me updated. See your from Ohio, good luck.
Tourer
Joined: Oct 2008
Posts: 279
Likes: 90
From: NE, Ohio
Sorry to hear you have problems as I am in the middle of a similar build and have mine apart, many possibilities. Ticking to knocking, maybe oiling problem. Keep me updated. See your from Ohio, good luck. Did you do proper break in???
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From: OHIO
Proper heat cycle break in. I will check push rods maybe adjust came loose. Im also thinking maybe compensator blew apart which would cause knocking. Thinking maybe the metal pieces got to the stator which would explain the loss of power (spark.) Bike has 75 k miles on original compensator i think.
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From: OHIO
I should mention oil pressure stayed good during this. The cam plate , tensioners, and oil pump were all just upgraded to screamin eagle hybrid parts about 2000 miles ago.
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From: san antonio
Something amiss in the primary should not cause a loss in power; lot's of noise for sure, but I don't think that is the problem.
Firs thing that comes to mind for me is the exhaust pushrod on the front cylinder coming out of adjustment. If that happens on the intake, you can limp home but not on the exhaust. But, if you are sure the pushrod adjustment is not the issue that would cause me to pull down that front cylinder. I would start by removing the rocker box covers on both heads and watching the movement of the rockers as the motor is rotated via the rear wheel. If that doesn't reveal anything, pull the head and inspect the head and cylinder for issues.
Wouldn't hurt to pull the cam chest and take a look inside as well.
Firs thing that comes to mind for me is the exhaust pushrod on the front cylinder coming out of adjustment. If that happens on the intake, you can limp home but not on the exhaust. But, if you are sure the pushrod adjustment is not the issue that would cause me to pull down that front cylinder. I would start by removing the rocker box covers on both heads and watching the movement of the rockers as the motor is rotated via the rear wheel. If that doesn't reveal anything, pull the head and inspect the head and cylinder for issues.
Wouldn't hurt to pull the cam chest and take a look inside as well.