Transmission Diagnosis Needed

OSGFII

Cadet
Joined
Dec 11, 2011
Messages
10
Hi, I have very limited knowledge of inboard transmissions. Currently, though the inboard Volvo runs well, the boat (Ericson 30) does not move. I am hoping someone here can tell me what's going wrong.
In the past, the boat ran well, but eventually required a new control cable line. I wasn't not present for installation of said cable, but I'm told it took some "finagling" to get it in. However, it was deemed to be fine. But when we tested it, the prop would spin, but the boat would not move. As an aside, the prop was clean at the time of testing, not fouled and crusty as is shown in the following links.
Today I went to take another look at things. Here's what I see at the stuffing box: http://www.youtube.com/watch?v=fzFc88zg6Tw&feature=youtu.be Considerable leaking when in forward, and I'm not sure the shaft was spinning faster when accelerating, even though the engine sounded louder.
So I jumped in the water to look at the prop while my mom shifted to forward, throttled up, back down to neutral, reverse, throttle, back to neutral. This is what I saw :http://www.youtube.com/watch?v=TZqOJlsTbI8&feature=youtu.be.
But then when we went back to neutral, the prop kept slowly spinning, regardless of whether she shifted to forward, neutral, or reverse. http://www.youtube.com/watch?v=iT30JhOnuUk&feature=youtu.be Looking at the shaft inside the boat, we saw it slowly spinning (but at least not leaking).
Like I said, I don't know enough about this to know what's going on. Does anyone here have an idea?
Mahalo Nui Loa
 

Lyle29464

Lieutenant
Joined
Mar 10, 2009
Messages
1,261
Re: Transmission Diagnosis Needed

I would disconnect the cable and shift it by hand at the transmission. If that does not help. smell of the fluid + make sure it is full. Thats about all you can do.
 

Vosman

Cadet
Joined
Jul 25, 2011
Messages
28
Re: Transmission Diagnosis Needed

There seems to be slippage of gear. Ensign is right on. Remove cable and shift by hand. You do not state what gear model you have. Make sure it is not overfilled with fluid. PYI shaft seal looks like disc needs more pressure against carbon shaft log. make sure shaft flange is not slipping on shaft. If it was working correctly before repair, check personel that did it???
 
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