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 Catalina 25 Specific Forum
 winterizing motor		  New Topic  Topic Locked
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Larry
1st Mate

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USA
37 Posts
Initially Posted - 01/10/2008 :  09:32:36  Show Profile
Well, I have the boat out and haven't done much else besides draining/anti-freezing the fresh water system inside. I have a friend who is a marine mechanic who says he is going to winterize the engine but I am afraid if I wait for him it will be spring before anything gets done. Can anyone give me an idea about what is involved here, I am guilty of not looking into it much as I just figure my buddy will help out but we have already gone through at least one cold spell and I am sure more will be coming quite soon.

The engine is a Yamaha 9.9 which is approximately 2 years old. It is my second season with the motor and the water pump has never been changed.
Larry
"Kate Caroline" 1985
Great South Bay, Long Island, NY
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aeckhart
Master Marine Consultant

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USA
1709 Posts
Response Posted - 01/10/2008 :  12:31:47  Show Profile  Visit aeckhart's Homepage
Change the lower unit gear lube, spray fog oil in the cylinders, check /replce plugs if needed, and a general cleaning.
Edited by - aeckhart on 01/10/2008 12:32:50
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tinob
Master Marine Consultant

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USA
1883 Posts
Response Posted - 01/10/2008 :  13:02:28  Show Profile
Larry hi,

In addition to what has been said, with four stroke motors it is necessary to change the sump oil and refill with fresh oil. If your motor offers you the opportunity to inject fog oil into the carburetor do so. I usually run the fuel out of the carburetor and as it's about to die from lack of fuel give a spritz of fogging oil into the carburetor at which point the engine revives and runs some more. I'd do this a few times and then let it die out. This leaves the engines internal parts coated with a winterizing oil.

I haven't done this with the Nissan because I take it home and store it in the barn where I run it in a barrel of fresh water and take the fuel lines off and drain them and fill them with the fogging oil and then start the motor once again to oil the innards of the motor. It would be much easier to do it while the motor is on the boat waiting to be hauled, but such is not to be.

Best of luck.

Val on the hard DAGNABIT, # 3936, Patchogue, N.Y.
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Champipple
Master Marine Consultant

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USA
6855 Posts
Response Posted - 01/10/2008 :  13:07:28  Show Profile  Visit Champipple's Homepage
If you are storing the motor indoors during the off season I wouldn't worry too much about doing this immediately. While optimally you don't want to let it sit - it isn't catastrophic like a inboard diesel on the hard in 2 degree weather. Just make sure you get everything up to snuff before you use it in the spring
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tinob
Master Marine Consultant

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USA
1883 Posts
Response Posted - 01/10/2008 :  13:32:24  Show Profile
There is a new fuel stabilizer available for use with 10% gasahol fuels and I've since switched to this. I haven't used it yet but will in the future. I first saw it in WM but thought it kind-a-pricey then found it next door at Pep Boys for about 3/4 Wm's Price.

Val on the hard DAGNABIT, # 3936, Patchogue, N.Y.
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OLarryR
Master Marine Consultant

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USA
3462 Posts
Response Posted - 01/10/2008 :  18:19:38  Show Profile  Visit OLarryR's Homepage
You may want to replace the fuel filter. I know my manual for my Honda recommends doing it each year...so if you have not done it in two years, probably a good idea. As far as engine oil changes, it is a no mess ordeal if you get one of those manual oil suction pumps and stick the tube down the dip stick port. The manuals also recommends greasing various areas - linkages. But best to check your manual before doing the wrong areas or overdoing it.
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 01/10/2008 :  19:31:02  Show Profile
Yup--when all else fails, read the documentation.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.