There's three choices. 15mm, 9/16 or 5/8

changing the starter isn't difficult, but can be a PITA because of the
position it's in. the bolts have to come out from the bottom. Then
there's the side mount bolt which is usuall 1/2 inch. It,s the easy one
.. I agree about your stomach muscles. Laying on your hed to pull the
starter isn't fun.

Now, are you SURE the starter is bad?

Oh, another thing about the broken bolt syndrome , is that fromt he
factory, the starters are braced in pretty well. When somebody changes
the starter,t hey usually don't mess with the bracing, and leave them
off. bad Idea on a boat or a rough work truck. that engine gets
bounced around pretty harshly, and the starter bounces around too (the
old style, about 18 lb. worth).








sonofadocker wrote:
I have a new starter to put into my boat.

My sockets do not fit completely on the two bolts that go into the
engine block.

What tool is used to remove these two bolts ?

I need to start the boat to get it out of the water for the season.

I read on ebay constantly mercruisers for sale because the starter
bolts broke off...

If anyone local in Ocean County New Jersey wants some pocket money to
do the work let me know. I currently am recovering from stomach surgery
and find it difficult to do the work. You don't realize how much work
your stomach muscles do.

1975 Formula Thunderbird 19' closed bow.

Thanks

Sonofadocker