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post #1 of 21 (permalink) Old 08-26-2014, 09:25 AM Thread Starter
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Valve noise and oil consumption

The bike is at the dealer as we speak but I'd like to pick everyones brain here for opinions.

I noticed a noise coming from the top end of my motor a few weeks ago. It only made the noise during acceleration and not while revving the bike in neutral. I know the normal noisey valve train sounds but this sounded like an actual valve noise.

I recently took a trip to sturgis and checked all fluids which were good and at proper levels. At this point I just chalked up the noise to being the valve train and me being ovet worried because of my upcoming trip.

The noise continued all through the trip and when I returned, I checked my fluids again and my oil was barely touching the bottom of the dipstick. There are no leaks externally on the motor so I leads me to believe its internal and possibly related to this noise. Any ideas?

It a 2013 103 motor with about 9k miles. Only motor work is a SE air cleaner, vance and hines true duals with rinehart slipons and a power vision tune from fuel moto.
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post #2 of 21 (permalink) Old 08-26-2014, 11:57 AM
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On the top end there is only 2 places that would contribute to oil consumption.
First is a bad crankcase breather and the oil is going into the intake and burned in the combustion chamber. There is not any visible sign of a crankcase breather problem except excessive oil in the air cleaner and throttle body.
The second is bad valve seals which allow the oil to drain directly into the combustion chambers to be burned. If the valve seals are bad you will see blue smoke on cold engine start up.
The only other thing that causes oil consumption is a piston ring problem.
As far as the top end noise you would have to pull the rocker covers and inspect the top end components.
If the repair tech at the dealer is any good he should find the problem.


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post #3 of 21 (permalink) Old 08-26-2014, 12:09 PM Thread Starter
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Thanks for the reply. Im patiently waiting for the dealer to give me a call with an update. Hopefully its something that can be rectified easily since as always, there is beautiful weather when I dont have my bike.

Im wanting to do cams over the winter so I figure its best to have all issues corrected before adding to an existing problem.
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post #4 of 21 (permalink) Old 08-26-2014, 12:15 PM
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Originally Posted by Stag556 View Post
Thanks for the reply. Im patiently waiting for the dealer to give me a call with an update. Hopefully its something that can be rectified easily since as always, there is beautiful weather when I dont have my bike.

Im wanting to do cams over the winter so I figure its best to have all issues corrected before adding to an existing problem.
If the lifters are going bad it will sound like top end noise. If the dealer has the rocker covers off or the lifter blocks and pushrods out and this repair is covered under warranty this would be the time to do the cams because the warranty will cover part of the labor cost.


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post #5 of 21 (permalink) Old 08-26-2014, 12:25 PM Thread Starter
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Thats a good point. Ill have to give them a call to see what they have to say. They may correct the issue without even calling me if its warranty work. We shall see.
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post #6 of 21 (permalink) Old 08-26-2014, 04:20 PM Thread Starter
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Just a quick update. The dealer said that because I use a K&N oil filter, that filter is too dense and is restricting oil pressure and flow. My air filter element is also saturated in oil. They say the lack of oil pressure is causing the noise I hear.

Seems difficult to believe that K&N would offer a filter specifically for a Harley when it was too restrictive.

Thoughts?
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post #7 of 21 (permalink) Old 08-26-2014, 05:17 PM
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That sounds like bs from the dealer, I've been using k&n oil filters for years and never had a problem.

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post #8 of 21 (permalink) Old 08-26-2014, 06:32 PM Thread Starter
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I agree. Based on their theory, people who successfully use k&n oil filters are lucky and they should cause problems.

Im no expert mechanic but I like to think im somewhat educated in mechanics. Can anyone explain how a pressure issue from the oil filter can cause excessive blowback into my air filter?
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post #9 of 21 (permalink) Old 08-26-2014, 06:38 PM
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Quote:
Originally Posted by Stag556 View Post
Just a quick update. The dealer said that because I use a K&N oil filter, that filter is too dense and is restricting oil pressure and flow. My air filter element is also saturated in oil. They say the lack of oil pressure is causing the noise I hear.

Seems difficult to believe that K&N would offer a filter specifically for a Harley when it was too restrictive.

Thoughts?
Did they take the rocker covers off like ironmark mentioned ? I am hearing loud valve train noises from my 2012, but also not while revving it in neutral. running a K & N filter as well.


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post #10 of 21 (permalink) Old 08-26-2014, 07:13 PM
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I'm certainly no expert but would think filter blockage would increase pressure interested in final outcome

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