Spark plug

[walleye1]

Anyone ever see a spark plug like this?
How do i get out?

[panasonic]

Maybe a 12 point deep socket that is tad small driven down over it...and some liberal amounts of swearing.

[walleye1]

There is no hex for a socket.

[rodbolt17]

try a smaller 12 or 8 point deep.

[99yam40]

what is this SP on?
that may help Identify what tool should be used

[walleye1]

Mercruiser 3.0

[rodbolt17]

good luck with ya there.
not the first 3.0 I ever had to pull the head to remove the plug.
I rarely feel bad, I am not the one that neglected it.
my shirt does not say Maytag.

[99yam40]

I am of no help on those motors as I never work on them, but this plug may be pressed in if there is nothing to grab to turn it out
larger pic or at different angle

anything on Mercruiser part break downs?

[99yam40]

good luck with ya there.
not the first 3.0 I ever had to pull the head to remove the plug.
I rarely feel bad, I am not the one that neglected it.
my shirt does not say Maytag.

Rod what kind of socket was ment to remove that plug?

[walleye1]

I tried to blow it up, didn't figure it out.

[robert graham]

Where is the hex on it?....never seen a spark plug without a hex head...

[99yam40]

when I searched all of what I saw were normal spark plus show on those Mercruiser motors

[walleye1]

You got me, never seen one before. Scratching my ars.

[99yam40]

are they all like that on that motor?

[walleye1]

Just the last one, #4.