Water in gearcase J90TLCOS

[danoutbard]

My 90hp Johnny is getting water in the gearcase. I did change the prop shaft seals and O rings but still. I think i m gonna have to do the driveshaft seals also. The shifter also has seal and gasket.

Anyone experienced this?

 

[Daviet]

Re: Water in gearcase J90TLCOS

You could vacume/pressure test the lower unit to confirm where the leak is.

 

[JB]

Re: Water in gearcase J90TLCOS

By far the most common cause of water intrusion into the gearcase is failure to use new crush gaskets under the drain/fill and vent plugs every time they are removed.

I would check that possibility before I did anything else.

 

[danoutbard]

Re: Water in gearcase J90TLCOS

I see what you mean...good point.

There's two new plastic(crush)gaskets down there.

Water is going in with the flush, probably means the problem is with the drive shaft gaskets. I order them, there to be changed anyway.

I'll keep you posted,

Thanks guys.