I have a 2009 FLHTP. I just changed the air filter (stock) and I found some oil in the housing. Is this normal for this bike? If not, where can I start looking for problems?

The whole bike is stock, no mods done.

Thanks

 

Pretty much normal unless it's excessive. There are a few things that you can do to combat it. One of the easier ones is run a 1/2 qt low on oil.

 

Have the new breather's 17025-03A proven to help eliminate this problem Dawg?

 

Yup, run level a little low if it hits your toes.



it is normal to have oil mist exit the heads at the 2 points where the air cleaner is attached.

Most of this is directed to the intake and burned

some of this condenses after the motor has stopped running

those of us with hi flow filter kits ( no plastic backing plate) tend to notice this more. ( it is easy to stick a maxi pad on the bottom of the stock a/c cover to catch oil, change every 28 days)

If no oil is dripping out- don't worry about it.


another sign of too high oil level is the filler plug/dipstick being blown out on acceleration

excessive oil from the breather is a sign of wear, either the umbrella valves in the heads, worn piston rings or a blockage elsewhere in the oil system which prevents venting.
The product of reversion can be confused for this, reversion is influenced by cams, rpm and exhaust tract. reversion can be tuned out.

don't worry about it

Mike

 

It is a common problem, I vented mine into the throttle body. I did ask two different dealer service managers about it. One told me, if you run high rpm they will all do it. The second never heard of it and there must be something wrong with my engine. He then went and got his ace mechanic and he told me they all do it. There are alot of threads covering this subject on this forum and I've even be called a smartazz in one of them.

 

Eliminate? No, not totally.

 

Awsome! Well, there was a tiny puddle sitting inside the opening on the filter, and it looks like someone took a rag with oil on it and smeared the lines going into the element. So, I am no longer worried. Thanks everyone for the responses.

 

I seen traces of it when I replaced my stock filter with a KN. I put squeeze clamps on the small hoses coming off the heads. It looked to me like there wasnt a good seal and the hoses were letting some of the mist get past them. I run my oil right to the full line and often at high RPMs (the fun zone as I call it), and never see anything on the outside of the airbox.