How big is the oil tank. - Bel Aire Compressors Bel Aire 5 Hp Air Compressor 318vn Vertical 80 Gal

That sounds terminal, it sounds like they forgot to fill with oil. Your big end bearing are shot.

You probably need to replace the oil filter. It is located in the oil tank. Using a small piece of wire with a hook on one end, stick the hook end into the oil tank and capture the oil tube. gently remove the tube enough to access the filter. Remove old one and replace with a new one. These are available at any lawnmower or small engine repair shop. Sometimes you can get one at one of the big box stores like Lowes or H.D. Good luck

I’m happy to help further over the phone at https://www.6ya.com/expert/robert_24775b73ca70da93

There are treatments (chemical) available, depending on the amount of water in the fuel. BTW, the caps on those tanks just don't blow off, they're treaded and screwed on ( I know this because I delivered fuel oil for 8 years).

Per EPA regulations, the crankcase ventilation has to be vented/routed to the air cleaner, for reburning.


A little oil is normal and no big deal.


A lot of oil is usually over filling the oil tank, or excessive piston ring blow-by.

Your dipstick should have two marks on it. The top mark is "FULL HOT" and the lower mark is "FULL COLD". Check the oil level with the bike on the side stand. My advice is to never add oil to the oil tank when the engine is cold. As long as you can see oil on the stick, ride the bike until it reaches operating temp and then add oil only when it's below the lower mark when hot. I never "top the oil off". The reason you never add oil to the tank when cold is that if the bike is not ridden for a period of time, the oil will seep by the check valve in the oil pump. It does this because the oil tank is located higher on the frame than the engine. The oil collects in the engine cases. If you "top the oil tank off", when the engine is started and it pumps the oil from the case into the tank, the tank is now overfilled. It will blow the filler cap out and oil will go everywhere making a big mess.

Good Luck
Steve

If the tank cap is loose, you need to get a new seal or simply replace the entire cap. There are two marks on the dipstick. The upper mark is "FULL HOT" and the lower mark is "FULL COLD". Do not add oil to the tank when the oil is cold. As long as there is oil on the stick, ride the bike until it comes to operating temp and then add any oil if it needs any. This is a common mistake on the Sportsters. If you bring the oil up to the top mark when cold, it'll expand and blow the tank cap out and make a big mess. Do not overfill the tank but if the tank cap is loose, replace it.

Good Luck
steve

You may have overfilled the oil base. Make sure the unit is sitting level then measure the oil. The oil does go into the same tube as the dipstick.

If you've drained the oil tank and changed the filter, add three quarts to the tank. Check the oil using the dipstick. There are two marks on the stick. The top mark is 'FULL HOT" and the lower mark is 'FULL COLD'. Keep the oil level between the two lines when the oil is hot. Do not overfill or you'll have a big mess.

Good Luck
Steve

Not to worry. Drain the oil out of the surge tank. If there is a hose attached to the bottom of the tank just let it drain inot a jug from there. Otherwise you'll have to take the tank off and drain it that way unless you have a shop vaccuum. Oil floats on water, suction it out with the shop vac. When you drain it let it drain for 1/2 hour or so and then hook it back up and fill with coolant. Oil in the coolant is not nearly as big a problem as the other way around. Hope this helps.