Water in the trim pump

W

WanabeBoater

Petty Officer 1st Class

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Apr 2, 2006

Messages

216

• Oct 31, 2007

• #1

I just received a phone call today from the marina that my boat has been winterized and is ready for pick-up, however they found water in my trim pump reservoir. What would cause this to happen?

 

Don S

Honorary Moderator Emeritus

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Aug 31, 2004

Messages

62,321

• Oct 31, 2007

• #2

Re: Water in the trim pump

Leaky trim cylinder is the most likely.
What drive system and year?

 

W

WanabeBoater

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• Oct 31, 2007

• #3

Re: Water in the trim pump

1994 Alpha 1....What's something like this cost to repair?

 

W

WanabeBoater

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• Nov 1, 2007

• #4

Re: Water in the trim pump

Help! Plz!

 

Don S

Honorary Moderator Emeritus

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62,321

• Nov 1, 2007

• #5

Re: Water in the trim pump

Ask the shop you have your boat at.
We can't make estimates for them.

Or, you can go to this link http://www-alt.mercurymarine.com/mnetdata/sisdata/srvcovr.pdf and download a service manual for your drive. (#14)
Then go here http://www.mercurypartsexpress.com/PartsExpress/HomePage/homepage.asp to find the parts needed
Then you can do it yourself and save some bucks.

Once you find exactly why there is water in the system.

 

W

WanabeBoater

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• Nov 1, 2007

• #6

Re: Water in the trim pump

Thanks Don

 

C

Chris1956

Supreme Mariner

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Mar 25, 2004

Messages

27,158

• Nov 1, 2007

• #7

Re: Water in the trim pump

I had that problem on my '88 Alpha. I found that if I sucked out the oil and replaced it twice a year, and used 5W-30 motor oil instead of tranny fluid, the water intrusion was minimal. The cure is to replace the trim cylinders (~$220 ea) plus installation or replace the seals in the cylinders.

 

W

WanabeBoater

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• Nov 2, 2007

• #8

Re: Water in the trim pump

Is that the most common reason for water entry...the cylinder has gone bad? Or could there be another reason?

 

I

imported_TheMan

Petty Officer 1st Class

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Oct 19, 2006

Messages

224

• Nov 2, 2007

• #9

Re: Water in the trim pump

I would think bad o-rings. Once you get water mixed in with the oil, you can start corroding the internals, making it difficult to raise/lower.

I freed one of mine up yesterday that was a bit locked up... applying 150 lbs of air pressure and using a leather mallet helped free it up though . Now 150lbs of air moves it nice and purty like.

 

W

WanabeBoater

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Messages

216

• Nov 2, 2007

• #10

Re: Water in the trim pump

I'm gonna have the mech mess with it next year...is the repair fairly quick...or is it something that's gonna take awhile for him to fix?