Gl1100 crankcase breather tube leaks oil - 1983 Honda GL 1100 Innerstate Gold Wing

Your description suggests the engine breather is blocked/partially blocked and a pressure is building inside the crankcase - either that or the breather flame/oil mist trap is missing or blocked.

Yup, oil is leaking directly onto the exhaust and burning. Fix the oil leaks, normally always the valve cover gaskets, and replace the pcv valve(PCV positive crankcase ventilation valve). See can you put another PCV valve in the other valve cover and run it to the breather. The more of these lines you hook between the engine and breather, the less it will leak because vacuum is pulling all the pressure out of the engine block and crankcase so it won't push the oil out. My 383 small block has a bad front main seal, I hooked up another tube and it can't push oil out the seal. No more leaks. Hope you get her fixed soon Bro, you really look bad with all that smoke coming from your truck.

What is the compression ratio for my engine?

Briggs & Stratton side valve (L-Head) engines use a compression ratio of 6 to 1.Our Overhead Valve (OHV) engines use a compression ratio of 8.5 to 1.

What would cause my engine to "puff" smoke while it runs?

White/blue smoking usually indicates the burning of oil. Causes to this condition include:

• Overfilling the crankcase with oil
• Incorrect oil grade
• Operating engine at greater than a 15 degree angle
• Inoperative crankcase breather
• Crankcase air leak
• Blown head gasket
• Worn cylinder and/or rings
• Turning/Tilting the engine on its side for any reason (storage, changing oil, etc). If the engine has to be tilted, ensure the spark plug is facing upwards to help prevent oil from escaping the crankcase.

Also, be aware that any small air leak can cause an excess of air entering the crankcase and will create a higher oil mist than the breather is capable of handling. The excess oil will then return through the breather tube and back to the air filter. Engine oil capacity is dependant on your specific engine model. To determine your engine's oil capacity, please visit our Oil Capacitypage. Oil level checking and changing intervals are available on ourMaintenance Schedule page, as well as a hyperlink (text highlighted in blue) leading to oil changing procedures.
The "Oil" section of your Operator's Manual also contains this information. Other possible causes include operating or tilting the unit at an angle, an obstruction in the breather tube (located behind the air filter), damage to the cylinder/piston rings, etc.

All Harleys will get a little oil in the breather.

However, when mileage causes the rings to wear, combustion pressure can leak past the rings, causing higher pressure.

You didn't state your mileage, but at 11 years old, your engine might be ready for a top end rebuild.

The engine "sumped", meaning the oil in the oil tank leaked past the check ball in the oil pump and is now in the bottom of the crankcase. Place a pan under the breather tube and run the bike until no more oil comes from the breather. keep an eye on the level in the oil tank. You don't want to run it dry. If you added oil, chances are the dipstick will fly out due to too much oil pressure. When you're done, either change the oil and filter, or add oil to the tank.

There ae a number of things it could be. What it sounds like to me is that the oil is not being pumped back into the oil tank and is collecting in the cam chest. It should be blowing out of your crankcase breather tube as well if your crankcase breather tube is open. Behind the oil pump, there are three holes. One is behind and above the oil pump. This is where the breather tube from your oil tank and the primary comes into the engine. The hole directly behind the oil pump in the middle is the oil return line from the very back end of the primary where the oil from the primary is recirculated back into the engine. The bottom hole behind the oil pump is the crankcase breather. It should have a hose that runs back around behind the transmission and just dead ends in a bracket pointed towards the final drive chain. This hose should be open to vent the crankcase pressure. Have you checked to see if oil is being pumped back into the oil tank? If not, the scavenge gears of the oil pump may not be pumping the oil out of the engine and back to the tank. If this is the problem, you may not have the drive key properly installed in the scavenge gears of the oil pump. Still, oil should be pouring out of the crankcase breather hole. But, this is what it sounds like it's doing to me. The oil is building up in the cam chest for some reason.

Good Luck
steve

worn compression rings , & oil control rings
worn bore ,
worn ring grooves -
loss of crankcase vaccumm , - c/case gasket broken/leaking
stuck breather ,
high oil level
blown head gasket ,


check simple things 1st

This is an age old problem for the Harley engine. In you 89 model, the crankcase breaths from behind the oil pump through a tube that runs to the backside of the air filter assembly. Most people that I know, simply remove the tube coming up to the air filter and block the hole in the air filter assembly backing plate. At the breather, they run a short hose to just behind the transmission and cut it off there. This is similar to the earlier Shovelhead engine and the way it breathes. In 1994, Harley went to the "head breather system" which was better but it still gets oil into the air filter assembly.

There is one thing I saw on the aftermarket assessories market once called a "CatchCan". The breather tube ran to it and it seperated the oil from the air and the held it in a small container to be emptied on a regular basis. I have never used one nor have I ever seen one so all I can tell you is what the book said. Matter of fact, I cannot remember where I saw it now. Custom Chorme catalog, maybe. Good Luck, Steve

The oil leak normaly would make the 'friction disc' inside the frame slip so as to not drive the axle.
Locate the oil leak
#1 engine crankshaft seal
#2 engine crankcase cover gasket
#3 engine overfull so that the excess oil is coming out of the crankcase breather tube and running down inside the frame

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