What to do about oil leaking from Breather vent?
There’s a product called “the fix” that some used with success to eliminate the problem that promotes better oil return . You can also run the vent lines down to vent out the bottom of the bike and another way is to use a catch can that collects any oil vapors that accumulate as a result of venting instead of gathering in the air cleaner.
Why is the oil breather hose in the airbox?
It is why you have the breather hose to the airbox and the drain tube in the first place. It keeps the oil pressure in the engine from reaching critical levels & blowing out a gasket. I assume that the machine is running well, with no loss of power or compression in conjunction with the oil problem, or you would have mentioned it.
How does a Harley Davidson Top breathing engine work?
Top breathing engines breath, or vent, through the top breather bolts which are threaded into the heads of a Harley Davidson motor. The air inside a motor is saturated with oil. It exits through the breather bolts and into the air box where the air is filtered and the oil is captured in the air filter.
What does it mean when your crankcase breather is blowing oil?
If your crankcase breather is passing oil, chances are that something’s wrong (Okay, we know something’s wrong, but don’t be too alarmed). Here are some things to look for while you’re searching for the source of the issue:
How does oil get out of a crank case breather?
Oil migrates slowly up the breather tube and makes its way out through your air filter. With time, it accumulates and releases a drip at a time from the bottom of your breather cover (tear drop). It is irritating but natural. Many relocate the breather tubes so that the oil drops to the ground.
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 causes oil to come out of the carburetor, air?
A lot of high-performance air filters (still common on small engines such as lawnmowers) use an oiled foam element. If it’s got too much oil on it, some of the excess will be blown out on the downwind (carburetor) side.
Top breathing engines breath, or vent, through the top breather bolts which are threaded into the heads of a Harley Davidson motor. The air inside a motor is saturated with oil. It exits through the breather bolts and into the air box where the air is filtered and the oil is captured in the air filter.
There’s a product called “the fix” that some used with success to eliminate the problem that promotes better oil return . You can also run the vent lines down to vent out the bottom of the bike and another way is to use a catch can that collects any oil vapors that accumulate as a result of venting instead of gathering in the air cleaner.
What can cause 1989 Harley pukes oil out crankcase vent?
Re: 1989 harley pukes oil out crankcase vent when started… Blow by compression. Severe engine problems. Pull the heads look at cylinder walls You can’t post conmments that contain an email address. I have 1983 Harley Sportster 1000 that won’t fire when I first turn the key, but after a few minutes it fires right up what can cause this?
What kind of oil filter does a 1975 Shovelhead have?
Bought a 1975 Shovelhead a while back from a very shady character and among other things, when you start the engine, it starts puking tons of oil all over the floor. There is a braided metal line about 6-8″ long with a small filter on the end of it. Looks like a crank case breather line, on the right side of the engine.
How does a primary oil leak work on a Harley Davidson?
How to Fix a Primary Oil Leak on a Harley. Harley-Davidson motorcycles use a chain-driven primary system to transmit power from the engine sprocket to the clutch housing. Drive plates in the clutch pack engage the plates in the clutch pack to drive the primary shaft in the transmission.
How do you get oil out of a bike vent?
You can also run the vent lines down to vent out the bottom of the bike and another way is to use a catch can that collects any oil vapors that accumulate as a result of venting instead of gathering in the air cleaner. (You must log in or sign up to reply here.)
What to do when oil comes out of the hose?
If you can’t see the oil coming back into the tank, disconnect the oil return line, take the spark plugs out of the heads, and spin the engine with the starter. OIl should come out of the hose in squirts. If not, you have an oil pump problem. If it does come out of the hose, everything should be alright.
You can also run the vent lines down to vent out the bottom of the bike and another way is to use a catch can that collects any oil vapors that accumulate as a result of venting instead of gathering in the air cleaner. (You must log in or sign up to reply here.)
If your crankcase breather is passing oil, chances are that something’s wrong (Okay, we know something’s wrong, but don’t be too alarmed). Here are some things to look for while you’re searching for the source of the issue: