Leaking gearcase oil from a Mariner 40

[Ed the Duck]

Just come to use my outboard today and found it is leaking small quantities of oil from the water inlets (where my muffs fit) and from around the prop. Decided not to launch- gutted as the weather is beutiful today.

The engine has been stored horizontally over winter (prop down, tiller up) and i've got a feeling that i may have damaged a seal when standing it upright (used the prop as a pivot).

Has anyone any ideas as to the likely damage I have caused and how simple it will be to fix?

Many thanks

Ed

[jwalker]

You need to investigate exactly where the oil is leaking from. If it is really coming out of the water inlets, you've either got a crack or the seal below the water pump is failing. I can't imagine any other easy way for the oil to enter the waterways. It didn't freeze with water trapped in it, did it?

[Paul F]

Sounds like either drive shaft seal under WP or gear select rod seal.
If you are capable remove gear box, drain oil and put a small amount of pressure in gear box(12psi)and dunk in bucket or bath if Mrs will allow.
Paul

[Turbodiesel]

Did you use storage seal when you winterised the engine? Sounds more like the oily black stuff running down the exhaust (leg) and out of the water pick up and exhaust of the prop. Are you sure its gear oil?

[Tim M]

put a small amount of pressure in gear box(12psi)

I am curious as to how you could so this easily.....

[ADS]

Tim the boat in your profile changes weekly! See you have an Osprey Eagle this week!

[Tim M]

Originally Posted by ADS

Tim the boat in your profile changes weekly! See you have an Osprey Eagle this week!

Indeed; picked it up on Saturday

[ADS]

Looks like a capable bit of kit, and I thought I had too many boats!! You going to bring the Osprey down South or are you keeping the 4.1m for that?

regards,

Alex

[Tim M]

I fancy keeping this one for my self. It needs a bit of work which will do over the summer holidays, then review the situation. Plan is take the bottle rack out, put twin jockeys in the back.....

[Swifty]

How do you get on towing the rig with a mountain bike?