Winterizing Mercruiser 5.0, drain plugs

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cardsrok

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Oct 19, 2010
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I just recently purchased my first boat, a 98 Baja 180 Islander with the 5.0 220hp Merc. We are going to winterize soon and am wondering how many drain plugs are on the engine. Any help is greatly appreciated. Thanks
 
Howard Sterndrive

Howard Sterndrive

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Nov 5, 2008
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Re: Winterizing Mercruiser 5.0, drain plugs

typically 4

one on each manifold
one on each side of the block
 
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cardsrok

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Oct 19, 2010
Messages
4
Re: Winterizing Mercruiser 5.0, drain plugs

Thanks. I've heard anywhere from 4 to 6, with one in the front under the thermostat and water pump area.
 
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cimy3

Petty Officer 3rd Class
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Jul 24, 2003
Messages
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Re: Winterizing Mercruiser 5.0, drain plugs

Don't forget about the power steering cooler.
 
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somebeach

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Oct 21, 2010
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Re: Winterizing Mercruiser 5.0, drain plugs

On my 2001 5.0 EFI there are six plugs. 3 on the left side of engine and three on the right.
 
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Dakota47

Senior Chief Petty Officer
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May 22, 2007
Messages
722
Re: Winterizing Mercruiser 5.0, drain plugs

Some do and some dont.. take off the hose if your does not have a drain..
 
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chris0061

Chief Petty Officer
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Jun 17, 2007
Messages
446
Re: Winterizing Mercruiser 5.0, drain plugs

its best to take the hose off anyway even if it has a power steering cooler drain plug. That's my thoughts anyway.
 
blouderback

blouderback

Petty Officer 1st Class
Joined
Apr 6, 2006
Messages
304
Re: Winterizing Mercruiser 5.0, drain plugs

Here's the drain plugs on my 2005 Mercruiser 5.0 carb'd 220HP. There's 5 of them:
Mercruiser5LDrainplugs.jpg
 
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