[Dominic Garofolo]

Boat is back in the water no oil issues. I did not change the check valve.

Sold the boat, new owner was satisfied with the sea trial.

Thanks for all the help, never would have expected it to be such a simple problem.

DG

[Dominic Garofolo]

Check valve located. Now what?
I got the engine started and no oil is currently leaking. Should the check valve be replaced or removed?

Thank you,
DG

[Dominic Garofolo]

Okay disassembled Walker air sep completely. The small filter had a lot of oil in it. Cleaned everything and reassembled. Of course batteries are dead so now I have to charge them. When that happens I will check in again.

[Dominic Garofolo]

Thanks for the reply.
Sounds like a game plan, but I cant get to it until Saturday.
I’ll let you know how I make out.
Hopefully its that simple.

Thanks,
DG

[Dominic Garofolo]

Thanks for the reply.
Haha I too wish you had come to help me out.

I just need to know what to do, I am certain I can do it.

Thanks,
DG

[Dominic Garofolo]

Thank you for the reply.

Yes it’s definitely the dipstick connection that oil come out of when the engine is running.

I looked everywhere for a check or plug including where it’s shown on your picture. Sorry therefore no picture.

Thanks
DG

[Dominic Garofolo]

Please see attached pictures.
I noted a small amount of oil at the small filter where it connects to the hose.
If you need more pictures please let me know.

Thanks
DG

[Dominic Garofolo]

Thanks for the reply.
I do still have the walkers.
There are two filters and I assume an oil line. Where would the oil be, I’m a little confused.

Thanks,
DG

[Dominic Garofolo]

This wiring diagram is much clearer.
Thank you,
DG

[Dominic Garofolo]

First of all I would like to thank both of you for answering my question. Bill—-> That is a lot of good information, thank you!

Now for the odd but good news:

I went into the local Marine store here in Cape May to buy some penetrating oil, and ran into an old timer who asked me what I was using it for. I explained what had happened, and he said, “take off the mushroom cap and then try it”. Further he said it sounds like the transmission is air locked, or air bound. (something like that), and to check the suction screen.

So, (I am the kind of person who will try anything at least once.) I go back to the boat and look for something that looks like a mushroom on the transmission. The item that I found was some sort of air admittance valve (see photos below). It was filthy and it was stuck closed.

So being a good listener I started the engine with the air admittance valve removed and attempted to put the boat in gear. Believe it or not the boat immediately went into forward. I then tried reverse, same thing, the transmission immediately went into reverse. I then tried forward again and it worked again. Did this several times and everything worked like it was suppose to.

My next move was to see if I could disassemble the valve and clean it. This was accomplished easy enough, and once it was clean I reinstalled it, started the engine and put the engine into gear and nothing…. No forward and no reverse. CRAP, what now?

So I took the air admittance valve off of the other engine (which was in much better condition), and tried again. And nothing! Now what?

I know, I’ll check the suction screen. I removed the suction screen plug not knowing what to expect. I stuck my pinkie into the hole and found that the suction screen itself was collapsed. After a couple of minutes with a pair of needle nose plyers I was able to get the screen out. It was really jammed in there. I put it around a 1/2″ breaker bar I had in my tool box, made sure it was clean and reinstalled it. Started the engine, shifted into forward and the transmission worked again.

I then changed the oil a couple of times because it was very black, and then took the boat for a test ride. The boat ran great! On Monday I called Twin-Disc and ordered two new air admittance valves and two new suction screens.

What I find amazing is that every mechanic I talked to told me the transmission was shot and needed to be replaced, yet no one would come out and look at it. And if it wasn’t for the older gentleman I ran into I would be pulling the transmission, for no apparent reason.

I guess sometimes you get lucky.

Thanks again Tony and Bill.

P.S., Bill I wouldn’t know what a torsional damper is if it hit me in the head LOL.

1 user thanked author for this post.

donald roth

[Dominic Garofolo]

Thanks!
Makes me feel a little more confident.

DG

[Dominic Garofolo]

Thanks Mr. Athens, Love the new site!

I could never exactly figure out why the sea max pump wouldn’t work either, but your pictures cleared it up for me.

Foot note:
I installed one of these Sherwood strainers on each raw water intake, (see attached), about 4 years ago, and haven’t had a pump go bad on me since. Not saying it would work for everyone but it worked for me.

Thanks,

Dominic Garofolo

[Author]

Replies