MC-1 Upper yoke leaking into bellows. Cause or effect of water intrusion?

[Fordiesel69]

Guys,

Can we speculate for a minute, I have a free drive that I used all last year, it needed topped off frequently and have a little cloudy look to the oil. Now as a result of the drive getting water in it, would that cause the upper yoke to leak oil into the bellows?

Also when an older drive takes on some water, and leaks, how likely is the upper unit to be at fault?

Also does anyone have a link where I can just buy some threaded plugs to do a pressure test so I don;t have to make my own?

-What I am getting at is the upper has the gearing I need for my 165, I have other lowers but have not pressure tested them.

 

[Don S]

Re: MC-1 Upper yoke leaking into bellows. Cause or effect of water intrusion?

Now as a result of the drive getting water in it, would that cause the upper yoke to leak oil into the bellows?

Yes, as water gets into the bellows, the drive gets over full, then oil is pushed out into the bellows the next time the drive heats up.

Most people use the ends off the gear lube pumps that go in the quart bottles.

 

[Fordiesel69]

Re: MC-1 Upper yoke leaking into bellows. Cause or effect of water intrusion?

However there is not water in the bellows, just oil from the yoke leaking.

 

[Don S]

Re: MC-1 Upper yoke leaking into bellows. Cause or effect of water intrusion?

Then the yoke or the seal or both are bad. Replace as necessary.