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Don’t just pull the dipstick—here’s the right way to check the oil level in a four-stroke outboard.
See full version: The Outboard Expert: Four-Stroke Outboard Oil Check
Don’t just pull the dipstick—here’s the right way to check the oil level in a four-stroke outboard.
Another benefit of removing the cowl for a routine oil level check is that you’ll have a chance to examine the powerhead for other issues, such as a fuel leak, a blossom of corrosion, or loose battery connections. Consult your outboard owner’s manual (which I hope you’ve read, or at least saved somewhere) for the exact oil check routine for your motor, because each brand and model is a little different. For example, you’ll want to check Mercury FourStroke 115 oil level with the engine cool, but a Yamaha 115 should be at operating temperature before you check the oil. Pay special attention for instructions on how to read the dipstick. As Meeler walked us through the procedure for a Yamaha V6 outboard, he pointed out that the correct oil level for this motor is half-way up the cross-hatch pattern on the stick. If your oil is low, add a little at a time until the level is in the middle of the cross-hatch. [links]
More outboard owners would check the oil level if the cowl was easier to remove. Lifting the lid on a big V6 can take muscle and agility, especially if the boat’s in the water. How about a little hatch in the cowl to access the dipstick? I should patent that idea. here
7 weeks of the boating season lost on a relatively new engine - you have a right to be pissed. here
Ron, you are correct - changes in oem providers would do this too. Thanks for looking at to more impartially than me. more
#3 Post by ronb » Fri Sep 14, 2012 1:17 pm more
#7 Post by albow » Fri Sep 14, 2012 8:38 pm [links]
Whether your next engine is a Honda or not, you can still thank Yamaha and Honda for driving Mercury to build a better product. [links]
150 HP (2013) Mercury Fourstroke with 15x15P SS Enertia (Thanks Todd!) - 41 MPH at 5800 RPM, light load. 39 MPH at 5700 RPM, heavy load. Love this motor.
I agree the damage has ready been done. Probably scarred cylinder walls, damaged rings, etc . I'd request replacement, 5 year warranty is not the issue as they will state, don't worry, it's covered. It's 10 years down the road when it would have still been fine and it craps out.
You should contact Don Weed @ EuropeanMarine.org. He is a Mercury Master Tech and as good of a marine mechanic as there is. His phone # is 864-421-0444 in Greenville, SC. here
Use the "that's not going to be acceptable" line and stick with it until you get it replaced under warranty.
I guess the question I would ask is whether the oil looked milky/cloudy. If not, maybe you will be okay. Not saying the Mercury story is right, but it may be plausible. Someone with more motor experience can weigh in here. Or ask the guy Bama suggested (you should call that guy for sure).
Water in the oil is never a good thing, and as long as there was still oil pressure, there would be no warnings.
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A helpful video for maintaining your 75-115 FourStroke Engine.
Mercury Racing® is known worldwide for its leadership in powerboat racing and production of high performance consumer and race marine products. more
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A helpful video for maintaining your 75-115 FourStroke Engine.