Lower unit oil leak

[lordy75]

Hi all , i have an early 80's 6hp 2stroke tohatsu ,6a im told and my problem is im getting gear oil leak up through the cylindrical brass piece that the shift rod goes through,the oil actualy passes between this brass piece and shift rod is there an internal seal in the brass piece or some sort of boot that goes over the end of it i have replaced the o ring on the outside but that isnt where its leaking any help would be great thanks

 

[Docksidemarineservices]

You will need to pressure test the lower unit to find the leak. The gear oil must be drained.

 

[jermbos]

add some thicker oil in there

 

[pvanv]

There is an internal o-ring as well. Sits in a groove in the bushing and rides against the shifter rod. Can test your patience getting the old one out. We use a dental pick for that in our shop.

 

[lordy75]

thankyou all for your help especially pvanv i replaced the internal o ring and im back on the water without the oil leak ,once again this forum has proved itself to be a great resource keep it up guys.