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How to winterize Malibu Boat


Joshh8120

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Hey guys, this will be my first winter as a boat owner so I want to make sure I winterize it properly. I have a 1999 Malibu Wakesetter DD with the Chevy 350. Could someone walk me through the steps needed for winterization? 

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If you're mechanically inclined and pay close attention to detail then it won't be a problem.  "how do you winterize" has been asked and answer so many times you may not get much help.  Use the search and the resource section and if you run into a specific problem or question post it up and folks will help.

 

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Ditto - see the resource section. We've been doing our own winterization with various boats for decades. We still make a list of all the steps and check them off

Fortunately we live in a temp zone that allows us to ride in the winter sometimes so we will "winterize" several times during the winter.

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4 minutes ago, oldjeep said:

One comment on that video - they skip an important step that will bite you in the rear with some boats.  When you remove the block drains and manifold drains, jam a screwdriver in the hole to make sure that your drain has not blocked during the draining.  I've winterized a couple of boats that have been full of crap that would have left a gallon of water in the block had I not probed the drain holes.

Co-sign the above statement:

I had a frost coming in overnight early October last year so I ran up to the lake just to drain everything to be safe before I was able to fully winterize over the weekend... read comments similar to the one above after the fact and got worried that I wasn't completely dry. Frost didn't turn out to be as bad as anticipated so I was OK - but when I got back to the lake over the weekend and took a flat head to the block, a ton of water came rushing out. Dodged a bullet with this follow up advice.

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One other comment about that video for the OP.  Since you have a 99, your process will be somewhat different.  There is likely no crossover hose, just drains in the bottom of manifolds.  If you have a Merc engine there may be additional drain points on the raw water pump and fuel cooler if you have one.

 

I think your best bet is to find someone local who knows what they are doing to walk you through it the first time.  Might find a crewmember to help you out.  I wound up doing 5 boats one year, 2 of them were crew members who were doing it for the first time.

Edited by oldjeep
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