Oil leaking from prop outboard

This one is easy if engine oil is leaking the propeller needs to come off and be inspected by a prop shop. The oil that you put in the gas all goes through the engine where it is used only once then either burns or goes out the exhaust.

Pull the bearing carrier with a flywheel puller.

Oil leaking from prop outboard. Leaking oil from prop help please. The oil that you put in the gas all goes through the engine where it is used only once then either burns or goes out the exhaust. The portion that goes out the exhaust then picks up carbon particles which turns it black.

Then you see it running out the bottom gravity yknow and you freak out. Lower unit oil smells rotten and is generally thick has a distinct Smellmotor oil would be blacker and would be normal as a little could easily blow by and end up in exhaustyour exhaust exits prop a little oil leaking out inside prop not a big deal. Oil leaks look big after spread out on floorcheck levels and change lower unit oil then keep an eye on it.

Gasoil leaking through center of the prop at times. Second thought it has a regulatorpressure relief in line the fuel line. So I have to assume is it.

Gear oil leaking from prop area HARD FIX. Thats a good point. Check your lower unit oil and see if water got in.

If you didnt run the motor. Hi three things can cause excessive oil to run down inside the exhaust housing and out the prop if that is what you are seeing. First the oilfuel mixture is too rich-501 is what you want to use you do not mention what HP it is and if oil injected then different reasons.

Oil leaking from prop 03-30-2013 0323 PM Got a 2001 Johnson 15 hp and just today I started seeing some muddy looking oil dripping from the prop after I. Black oil dripping from outboard prop. Hey Johnson Outboard Forum Today i removed my boat from storage and ran up my 1997 200 HP Johnson Ocean Runner 2 stroke outboard.

I winterized my boat therefore prior to storage i sprayed fogging oil into the cylinders. If you have run your motor at low rpm without load in cold weather it is completely normal that unburned black oil drips out of exhaust or drain holes in lower unit afterwards almost every two-stroke Ive had did that. I doubt its a problem.

If I accidentally got too much oil in the gas it would smoke but also dump some oil thru the exhaust. Up to 40 of the fueloil mix is blown out the exhaust unburned. Running in the driveway at low rpms coats the inside of the exhaust housing which will trickle down and leak out the gap between the lower unit and prop.

Its just unburnt fuel and oil. I got the leaking fuel from the power head fixed by resealing the crankcase halves. The oil dripping from the lower unit where the exhaust comes out is a new issue.

Its definitely oil from the fueloil mix not oil from the lower unit gear case. The oil is black and has an exhaust smell to it. Getting the prop off is the first step.

Once it is off you can see the prop shaft seal. If it is not coming from there then the most likely spot is the water pump base. To pressure test you need to put about 15 psi into the unit.

They make specific pumps to do it but you might be able to use a bicycle tire pump and the fitting from the gear. IF it really is gear oil it can only leak via the prop shaft seals which it clearly isnt the drive shaft seals below the water pump the shift rod seal boot or the gasket on the top of the gearcase not sure about this last one though. 1994 2-cycle carbureated150 yamaha.

Had small amount of water in lower unit and boat would kill after start up. Boat not used past three months. Plugs were very black so Installed new upper and lower unit seals and Shift Shaft seals.

Attached lower unit and prop. One bolt next to the Anode bolt attachment was lost during. If you plan on working on the motor yourself pick up the manual.

Prop shaft sealsdrive shaft seals shift shaft seals and the drain and fill screw gaskets are all places water can get in and oil out. You can pressure test to see what all is leaking or just. The intake is the screen on the skeg aft of the prop.

The hole with the oil leak is the weep hole that allows water. To drain from the top plate of the gearcase. Unburnt oil will settle there off the inside of the exhaust housing.

Then leak out for several days. The proper oil level is a bit of a problem with engines that are often removes and storedtransported. You have a first class Japanese machine it is highly unlikely that it really leaking.

Evinrude 99 leaking oil all depends on how the motor is tilted when its on your boatstand. More than likely perfectly normal. But its normal routine maintenance to check and change the gear oil on any newly acquired outboard.

Make sure to replace the drain and fill washersorings if you do change and inspect the gear oil. Immediately send the propeller to a McCauley authorized propeller service facility. This one is easy if engine oil is leaking the propeller needs to come off and be inspected by a prop shop.

This condition means oil is leaking around the internal piston and is filling the hub cavity. I confirmed that the oil that is leaking is gear oil. I pulled the oil level plug and oil immediately poured outapproximately 2 tablespoons.

The gear oil was clear not milkyand no air bubbles where present. It looked as if it was being poured out of the bottle. Remove the two screws that hold the bearing carrier around the propeller shaft using a screwdriver.

Pull the bearing carrier with a flywheel puller. Peel the O-ring out of the groove on the end of the bearing carrier opposite the propeller end and remove the seal from the propeller end of the bearing carrier with an internal-jawed puller. Leaking oil seals at the prop shaft means oil is escaping from your Mercury outboards lower unit and is also a sign that water is getting into it.

Water in the gearcase causes extreme damage so replacing those leaking oil seals is an absolute priority. Watch the video above and follow the steps below to replace the prop shaft oil seals on. Wipe it down and check for leaks.

Tilt the motor up to look for any oil leaks from these plugs. If there is any spilled oil in your area you need to clean it up. Also make sure to dispose of the oil properly.

Outboard Lower Unit Rebuild Cost. If you have a bad outboard lower unit you have several options. You can rebuild the unit or purchase.