The Marine Doctor changes Gear oil

This was all done in one take at work...time was limited and its a little rough around the edges...It should be complete enough to help you through a gearoil change. For further help...www.themarinedoctor.com

Category:

Autos & Vehicles

Tags:

• boat
• gear
• oil
• gearoil
• waterpump
• johnson
• evinrude
• mercury
• mariner
• force
• impeller
• marine
• tech

[TheMarineDoctor]

Do the cables move at the back?

[TheMarineDoctor]

Look me up on the website themarinedoctor.....  I will be happy to answer your question.

[TheMarineDoctor]

The "Flush" screw is to allow for an external water supply to flush water through the engine without the engine running.

[CRDLIBERTY]

I have 3/4 of a pint mercury plus i got 5 years ago. Would this be enough for 2000 mercury 115hp i picked up 2stroke classic carb model.

[TheMarineDoctor]

No, I think they take just under a liter of oil.

TMD

[TheMarineDoctor]

Leave the OTHER one alone.

You need to remove the top one and bottom one only.

Fill from the bottom until you reach the correct place on the dipstick...top one.

TMD

[GetThemLyrics]

We use high performance oil in all ours that we do, that way we only have to buy one type. Keeps it simple.

[kiasoul10]

GEt a big flat head number 1 harbor freight got em under 2 bills

[waysidemike]

Hey I just got my boat on the water after working on it alot, mercury 500 thunderbolt

50 horse. When I put it in gear, it moves just a little and the motor does not rev and go forward. or in reverse.

out of water it seems to do fine, with the water hose connected, can you help?

[JoelLabbeMusic]

Good Vid, but i think that pressure testing everytime is good practice, with or without water. your wasting your time if you refill a gearcase that has had water in it, also, change the washers each time, they are like a dollar, and also, i would put the engine level. and one last thing, before touching the bottom screw, take the top one out, and see what the level is first. if you filled it full, and your down, theres a reason and figure it out before you refill that gearcase. thanks tho TMD

[XUncleRockX]

Thanks for the vid Doc, very helpful :)

[Airshootingpractice]

Hi Doc..

I have a 5 HP Mariner 1986 4 stroke; need advice on how to oil change; and have some doubts on if the impeller is working properly.

Thanks a lot.

[svenngali]

Good video,...but I have the older straight 6 Merc 150. What is the 'FLUSH' screw up near the top vent screw? thanks.