Fixing a gear oil leak

N

Noodleman

Petty Officer 3rd Class
Joined
Nov 5, 2008
Messages
87
Hey guys,

Last new topic of the day! honest ! >:)

Engine: Mariner 60
S/N: 675 3028

I have come to the conclusion that at least one, if not all of the oil seals in the gearbox/lower unit of my engine are shot, and need replacing. I came to this conclusion since all of the oil that was in the engine... is nowhere to be found... and what little was left, decided to start dripping out of the prop area today.

I have been having a look online, and at previous forum posts to try and see if there is a simple kit that can be purchased that will allow all the seals/gasgets to be replaced, but I haven't had much luck, so I assume that I will need to purchase the various items on their own.

I have been having a look at the manual I have, and from what I can tell, I believe there are seals in the following places that I should replace.

2 seals below the water pump O ring/water pump base
1 seal directly beside the water pump (looks rectangle shape)
2 seals between the thrust hub and the roller bearing on the prop shaft.

Can anybody confirm if this is everything, or if I have missed something, or even if there are any basic tests I should do, etc.

The seal I mentioned directly beside the water pump looks broken, mainly because it is cracked in half. Acording to the manual I have, this is a seal.

Any advice/info that peeps can give would be great. I would like to head to the shops tomorrow and hopefully get what i need.

Thanks in advance
 
C

cell

Petty Officer 1st Class
Joined
Apr 16, 2009
Messages
208
Re: Fixing a gear oil leak

Im confused...What oil thats supposed to be in the engine?Is this a 2 stroke?
 
N

Noodleman

Petty Officer 3rd Class
Joined
Nov 5, 2008
Messages
87
Re: Fixing a gear oil leak

cell said:
Im confused...What oil thats supposed to be in the engine?Is this a 2 stroke?
Click to expand...

Heya,

yup its a 2 stroke, 60hp mariner. There is oil that is mixed with the fuel... which is ok.

Then there is oil which goes into the lower section of the engine, for the gear box / prop
 
C

cell

Petty Officer 1st Class
Joined
Apr 16, 2009
Messages
208
Re: Fixing a gear oil leak

Oh...I see.;)

You can pressurize the gear case per the manual to check for a leak.
 
N

Noodleman

Petty Officer 3rd Class
Joined
Nov 5, 2008
Messages
87
Re: Fixing a gear oil leak

cell said:
Oh...I see.;)

You can pressurize the gear case per the manual to check for a leak.
Click to expand...

Hi Cell,

I noticed it said about doing that in the manual, But i dont have a tester to use. I had a look around at the cost of buying one, and its about ?50. It will be cheaper to replace all the seals, than to buy the bit of kit to check all the seals, so i am going to give this a miss for now.
 
C

cell

Petty Officer 1st Class
Joined
Apr 16, 2009
Messages
208
Re: Fixing a gear oil leak

Keep in mind that if you don't torque the big nut behind the prop to proper specs you can damage your gears/clutch dog.So it might be worth getting the service tool for that procedure.....but then again I just used a hammer and a punch.But I don't recommend it.
 
N

Noodleman

Petty Officer 3rd Class
Joined
Nov 5, 2008
Messages
87
Re: Fixing a gear oil leak

cell said:
Keep in mind that if you don't torque the big nut behind the proper specs you can damage your gears/clutch dog.So it might be worth getting the service tool for that procedure.....but then again I just used a hammer and a punch.But I don't recommend it.
Click to expand...

Hammer works for me, but i do have some torque tools that may help :D
 
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