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i have a 97 Mercury 40 hp i have water in my lower unit what could cause that could it be comming from some place near the water pump i saw oil residue in the tube that comes out the side of the cowlingfrom the water pump sprays and is visible to let u know the water pump is working. is it possible that i have the water pump wrong or could some seales be bad and is it something i can fix my self that you jerry
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∙ 15y ago
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What type of oil do you use in mercury outboard lower unit?
If the horsepower of your Mercury outboard lower unit is 75 and below, SAE 80W90 Gear Lube is recommended.
Lower unit diagram 50 hp mercury?
How do I remove the lower unit from my 1984 50 hp. Mercury outboard motor?
How do you remove the lower unit on a mercury 3.9 hp outboard?
Never mind I figured it out
What is the amount of gear oil in lower unit on a 1973 7.5 hp mercury outboard?
The 1973 model, 7.5 hp Mercury outboard, requires 6.8 oz. of gear oil.
Would a lower unit from a 1970 mercury 7.5 hp outboard motor fit a 4 hp of the same year?
No
How do you change lower unit oil in 50 hp mercury outboard?
Take it to a marine repair shop or google it up, the answer is there
What is the tube coming from the lower unit of a mercury outboard motor?
It is a speedometer pick up tube.no longer used due to clogging.
What lower unit gear lube should be used on a 9.9 mercury outboard?
Mercury® Marine High-Performance Gear Lube from Basspro
What kind of lower unit oil for Johnson outboard?
pwd 40
1980 115 hp outboard motor mercury oil change how?
first of all what oil your are talking about , i hope not engine oil because there is non that is two stroke engine. lower unit has a draining bolt on the bottom and air or fill bolt on the top of the lower unit....
Will a 35 HP Mercury lower unit interchange with a 40 HP lower unit?
yes
Water pump repair on a 35 hp Mercury outboard motor?
It is easy...remove the lower unit..about 5 bolts. If you want to see this done YouTube it...a lot of good videos for DIY.
