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90 flhtc breather always leaks

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Old Jun 28, 2012 | 12:01 PM
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Default 90 flhtc breather always leaks
My 90 flhtc crankcase breather always leaks oil. I put a few hundred miles on the bike a week so its not because its sitting around. I ran the line to the back of the bike to get it away from the tire but really want to fix it, any ideas?
 
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Old Jun 28, 2012 | 12:57 PM
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Too much oil in tank maybe? What's your dip stick read?
 
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Old Jun 28, 2012 | 04:49 PM
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Possibly blow by from high miles and due for a upper end refresh .
Try a simple compression test to see if the rings and valves are ok.
Also understand that the timed breather gear has a plastic component that
can deteriorate with age and miles.
 
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Old Jun 29, 2012 | 10:19 AM
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the oil is kept a bit short of full cause i keep a close eye on it and am always adding. the top had been done by the last owner and i don't know what the mileage was when done. got it last sept with 25k on it and has 31k on it now and it leaks the same as it always did.
 
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Old Jun 29, 2012 | 08:46 PM
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You say the po did a top end rebuild at approx. 25k ?
Do you mean the po did a top end rebuild at 25000 miles ???
If so , ... why ? And did he screw something up .?
 
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Old Jun 29, 2012 | 11:48 PM
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I have mine running into a breather under my seat, it hasnt had a drip since.
 
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Old Jun 30, 2012 | 10:56 AM
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run your oil level a little lower, like 3/4 to the top. How much oil is coming out? If you can route your vent higher like the other poster who has his under his seat, you might stop the problem.
Hatch.
 
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Old Jun 30, 2012 | 07:47 PM
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I also run a 1/4 quart low, she seems to like it better, but every bike has its own level.
 
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Old Jul 1, 2012 | 01:13 PM
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Default oil
mine blows oil just enough to be annoying.
if you raise the vent hose where will the oil go? will it go back into the head or just stay there in the hose?
 
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Old Jul 1, 2012 | 01:46 PM
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I guess if you raise the vent outlet high inough, the oil will not be able to escape the pull of gravity, and just flow back down the vent line.
 
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