Alpha 1 Hydraulic manifold questions

Ok so here we go again. I took the boat out yesterday and after about half of the day my trim stopped working. When i opened up the tank to look inside the oil was nasty milky so i got water in there some how. After getting the boat back home i drained and flushed everything and got it working properly again. Now that the system is working again i can run the trim up and down and i do NOT leak any fluid out. I would think that if i took water in it would leak oil out when cycling the system in my garage. My next question is about the manifold on the bottom of the transom where the 4 lines connect into the sides. On the bottom of this manifold there is a small plug. After looking at the manual for my outdrive (Page 553) it is shown there but it does not give a reason or a purpose for it. Could this somehow be the cause of my leak? Is there somewhere else i should be looking? All the connections on the cylinders were tight and the manifold is the only other area with connections under water.

Thanks for any help.

Re: Alpha 1 Hydraulic manifold questions

Bump!!!

Re: Alpha 1 Hydraulic manifold questions

After looking at the manual for my outdrive (Page 553) it is shown there but it does not give a reason or a purpose for it

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If your drive had been equipped with the Mercathode system, wires would have gone through that hole. Turn the pages to 556 and 557.

Is there somewhere else i should be looking?

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Could be a trim cylinder leaking, or even water getting into the reservoir through the cap.

Re: Alpha 1 Hydraulic manifold questions

Don S said:

Could be a trim cylinder leaking, or even water getting into the reservoir through the cap.

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I will look into the cap. I would think if the cylinder was leaking water into it i would have the fluid coming out while cycling the trim in the garage?

Re: Alpha 1 Hydraulic manifold questions

I would think if the cylinder was leaking water into it i would have the fluid coming out while cycling the trim in the garage?

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Trust me, it can happen.

Re: Alpha 1 Hydraulic manifold questions

Im guessing the only way to test this theory would be to put the rams in water and cycle them to see if i get the water in the system then.

Re: Alpha 1 Hydraulic manifold questions

Also, bolted to the manifold is a block that looks to be made of aluminum or zinc. I was told this is for boats that run in salt water. Is this true and am i safe running around in the fresh water lake without it?

thanks.

Re: Alpha 1 Hydraulic manifold questions

Bump!