Milky coloration indicates water in lower unit oil, while gray suggests a mechanical issue due to grinding metal, thus creating shavings. It's only natural and that's what you're experiencing. Replace Impeller/Water Pump Housing. I have not run aground or hit any rocks since I have owned the boat. Remove the screw at the upper portion of the lower unit. Columns so I will not address correcting.
Exceptions & Exclusions. A pressure test may be performed at your local repair shop. Whether clear, milky, or burnt, the old oil must be drained completely and replaced with new.
But that was fixed by cleaning out the vent holes in the housing that were clogged with mud. Change Lower Unit Gear Oil & Replace Lower Unit Seal. Don't attempt to unbend the propeller back into its original position if you notice any damage. Maybe the gaskets on the oil plugs I replaced was the culprit? Whatever the color, you know the oil is fresh when pumped from a sealed bottle. But nothing was ever seen leaking from that plug. Each has a specialized marine additive package that provides protection against excessive wear even in the presence of water, prevents corrosion and pitting, and helps extend gear life. Water in lower unit oil for mercury outboard. Some manufacturers offer longer warranties than others.
Registered: 1261958958 Posts: 1, 408. Supply is cut off (remote tank hose disconnected/. If you find the seal of the prop shaft gets damaged, replace it with a new one. We are more than happy to help you troubleshoot the problem and find the best solution for your outboard motor. Now, it can be either the lubricant leaking out or your o-ring is damaged. Water in lower unit oil yamaha. Jason Model E150DPXSUF serial 5195013. Replace Lower Unit Seal (if necessary). Water and gear lube don't mix, but you can't avoid submerging your marine motor's lower unit. Passages, and a modern outboard with "through-hub".
1 What Is an Outboard Lower Unit? Down so that the water will drain from the waterjackets. The following are some of the mandatory parts, tools, and supplies you'll need to service your Yamaha outboard: - Water Pump Impeller. They are the yellow ones. Many different things, such as stripped gears or a bent propeller shaft, might result in grinding noises. Boat lower unit oil. You'll want to visually inspect the exterior of your lower unit for any signs of damage each time you go out. My sarcasm and my sincerity sound surprisingly similar! Once you see this new fluid seeping out of the upper vent screw hole, stop and wait 5 minutes. Here are a few things to look for when choosing an outboard service provider: - Qualifications. Through the spark plug holes. It is used to lubricate the internal moving components of engine and reduce friction between them to have a smooth working of the outboard engine.
Oil is needed to protect the internal parts of the. Good Sam Members who have maintained a continuous active membership status may return any. Can you overfill the lower unit oil? Gift cards cannot be. A damaged driveshaft seal is the main culprit that allows water to seep into and mix with the oil. Difficulty: EasyMaterials & Tools: - Gearcase oil (check manual for amount).
And guess what, the fishing lines can easily cut the prop shaft seal and leak it. I never saw oil in the water around the outboard this season. No matter what, also replace the shift shaft oring while the gearcase is removed - it is fairly quick and easy to do while the gearcase is being serviced. Grease the inside of the water pump housing and the top of the wear plate with marine grease. Replace Oil Control Valve Filter. How To Replace Your Engine's Gearcase Lubricant | BoatUS. Gear oil reduces friction on the lower unit, thus reducing the likelihood of failure. Severe Service Worsens The Problem. "Mercury Marinier/Yamaha 4-Stroke, 1995-2007"; Seloc Marine; 2007.
For many boat owners changing the gear lube is part of an annual service performed before winter or off-season lay-up, along with an engine oil-and-filter change for four-stroke outboards and sterndrives. Registered: 1227523726 Posts: 270. Failure to change boat gear oil routinely results in costly and avoidable repairs. For short-term storage of gasoline, I occasionally. Yamaha Lower Unit Oil | Lower Unit Gear Oil. Begin pumping grease until fresh grease begins to ooze out from exit points. What we suggest is- to check the driveshaft seal as it's the main culprit behind this. We've written in detail about how to detect what's causing the oil leak and how to fix this. But then put the top screw in and give it a couple more pumps just to be safe. Replacement of the impeller is a simple repair that can be performed in 15 minutes: - Remove the gearcase/lower unit from the outboard.
In the exhaust cavity in the lower unit. One option is to simply replace the seal. Let's see why this might be happening. Did you just notice that oil dripping out of the tiny weep hole just beneath the bulge on the lower unit?