Block drain plugs, 1995 Mercruiser 5.7l Alpha 1 Gen 2

wgl333

Petty Officer 2nd Class
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Jan 11, 2011
Messages
140
I am getting ready to drain the engine and see the drain plugs are a recessed square fitting. Am curious to know what size these are and what to use to remove them.
 

Don S

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Aug 31, 2004
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Re: Block drain plugs, 1995 Mercruiser 5.7l Alpha 1 Gen 2

Post a picture, sounds to me like you are looking at the wrong thing.
 

Jerryh3

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Sep 21, 2010
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Re: Block drain plugs, 1995 Mercruiser 5.7l Alpha 1 Gen 2

Those sound like the riser plugs.
 

Bondo

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Apr 17, 2002
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71,082
Re: Block drain plugs, 1995 Mercruiser 5.7l Alpha 1 Gen 2

Ayuh,.... Can't say that I've ever seen Drain plugs like that either...

Usually 7/16" hex heads for 1/8" pipe, 'n 9/16" for 1/4" pipe....
 

wgl333

Petty Officer 2nd Class
Joined
Jan 11, 2011
Messages
140
Re: Block drain plugs, 1995 Mercruiser 5.7l Alpha 1 Gen 2

:rolleyes: Yes, you all are correct.....color me moronic
 
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