What does oil in my air filter mean?
It is caused by excessive carbon deposits or engine sludge developing inside the crankcase. When the oil does not flow efficiently, excessive engine oil pressure will be created and cause extra oil to push through the PCV valve and into the air intake.
What causes oil in the air filter?
Oil in the air filter is most commonly caused by blow-by. The Air filter protects the engine from dirt, dust, and other contaminates. So then, what is blow-by? Blow-by occurs when the air-fuel mixture or combustion gases escape from the combustion chamber and into the crankcase at the bottom of the engine.
Why is oil dripping from my Harley air cleaner?
Same problem on a 2012 ultra.tried running low oil didn’t work just junk harley internal parts. Don’t blow out with compressed air! You will ruin the element. Shake the filter and them let it air dry. Phooey… As long as it’s not high pressure, keep it to 10-15 psi, it’s fine.
Where does the air breather go on a Harley Davidson?
Harley’s stock air breather set up on all their bikes vents directly to the air box. Gas is a by product of oil, and we aren’t talking about dumping a lot of it down the cylinders.
What causes a Harley Davidson crankcase breather to leak?
Partially restricted pushrod tubes. Improper oil pump timing. Improper head venting. Excessive blow-by due to worn rings. Also, one other thing that can cause it, if none of the above fixes your problem. Ive had the stock plastic crankcase breather valve shell out and cause excessive oil blowby thru the breather.
What to do when oil blows out of crankcase breather tube?
You will need to remove the spring & check ball from the inner pump tower; clean the check ball, replace if pitted & re-install. Crank over the motor with the plugs out & leads grounded until the oil is out of the cases. Re-fill oil tank, warm up bike & top off oil level.
Same problem on a 2012 ultra.tried running low oil didn’t work just junk harley internal parts. Don’t blow out with compressed air! You will ruin the element. Shake the filter and them let it air dry. Phooey… As long as it’s not high pressure, keep it to 10-15 psi, it’s fine.
What makes the breather blow by on a Harley Davidson?
Ever since the introduction of the EVO engine with breather heads and the use of high flow air cleaners , breather blow by has been an issue . The stock air cleaner assemblies forced most of the breather blow by to be recycled through the combustion chamber .
Why is my bike leaking oil threw breather?
My Bike is leaking alot of oil threw the breather. What could be the cause for that and how can I fix it? well, what motor, year and model of bike? evo motors vent the case through the breather. If you pullout your air filter, you should have an oily film on the mounting plate and around the rim of the filter. Its an evo engine.
Why is the oil coming out of the air filter?
Because the hot oil in the crankcase is easily displaced by the increased pressure and because it has a perfect path out of the crankcase via the breather, the first sign of impending trouble is nearly always oil migrating into the air filter. Once the oil is pushed into the air cleaner,…