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I do occasionally hit some sandy/shelled areas..... not the norm but I can see where that is a risk factor for a shallow water fisherman like me. Gear oil, otherwise called lower unit oil, plays a fundamental role in the process. Now You Know The Importance Of Lower Unit Oil. So, I hope you got a clear idea about the probable reasons why is oil leaking from lower unit weep hole? The factory labeled for 100 to 1 oil/gas mixtures. Replace Exhaust Guide and Manifold.
If you find it worn out, replace it immediately. Also, look at the condition of the cotter pin – if it's damaged, replace it. It must be serviced to maintain optimal performance and extend the lifespan of your Yamaha outboard. Change the lower unit lube. Either way, performing lower unit maintenance is important for proper continued operation and fewer headaches when you're out on the water. Lower units use an oil bath for lubrication; that is, the entire unit is filled with oil that requires regular replacement, in most cases, every 100 hours. Water can reduce the gear lube's viscosity below what the manufacturer recommends, reducing wear protection. I use discount store. Rocks, reefs, and other underwater obstacles can cause shift linkage and even major damage to the lower unit. The lower unit to drain and lay empty all winter. Gear oil reduces friction on the lower unit, thus reducing the likelihood of failure. Shafts, and of the ball/roller bearings in those engines. First, like any lubricant, gearcase lube wears out with use as its additives break down and it holds fine metal particles in suspension.
For preserving lifespan and optimal performance, Yamaha recommends regular service intervals to avoid damage to your Yamaha outboard's lower unit. Overview of Necessary Lower Unit Maintenance for Your Yamaha Outboard. So back at the house I opened the lower unit plugs, and the grey looking oil came out. From freezing temperatures by antifreeze as an auto's. I was advised that the Pressure checks were performed before and after. Rust can flake off and circulate throughout the gear lube, where it acts like sandpaper and scours bearing and gear surfaces. Also, make sure you choose a good spark plug. Clearance and Outlet items are sold as is and cannot be returned at any time. That I am aware of are designed so that the water. Let's see why this might be happening. Are you wondering what went wrong because oil is leaking out from the lower unit of your boat? After the pressure and vacuum test, you can enjoy riding in your boat again. Changing the lubricant is a pretty easy task for the do-it-yourself boat owner. Making an oily mess.
As a rule of thumb for new outboards, boaters should service their outboard every 20 hours after breaking in the engine (which occurs in the first 10 hours of operation). Prop shaft Oil Seal. To remember are that the water jackets will not drain. Engines to sit a few days, occasionally turning the. But I did loose oil. Material wrapped around the propeller shaft will lead to the propeller spinning slower. If it feels like more than a hint of sand is present, there may be gear damage. Take notice of the drained oil. I've got about 4-5 posts on hold in yellow. After replacing the washers, it's time to refill the gear case with fresh oil: - Thread the appropriate fitting into the lower unit drain screw opening and slowly pump in fresh Yamalube Marine Gearcase Lube. Winterizing and Storage.
9 Tips For A Trouble-Free Lube Change. I did not notice any monofilament but I did notice that once I pulled the pin, the nut holding the washer and prop on was loose enough for me to twist off with relative ease with my fingers. There was at least several ounces of water that came out before any oil out of the drain plug. Carburetor of most (but not all) gasoline. Gather your supplies, including fresh oil, flat head screwdriver, drain pan, rags, and gear oil pump. Number of Cylinders. Maintenance Service Intervals. Idea, a better idea is to run the gas out, and then. Replace Oil Control Valve Filter. Your browser does not support cookies. Running on lean oil/ gasoline mixtures, the fogging.
The gear lube fluid film can rupture, especially if it's been weakened due to water contamination, leading to metal-to-metal contact.