Merc 4.3 questions
 

A friend of mine has blown the motor in his boat. Apparently the exhaust
went bad, #1 piston has a hole in it. We don't have it torn apart yet. Is
it possible to rebuild, new bearings, pistons and rings? Or should we just
drop in a new longblock? Found one for $1800.00, is that a good price? Can
anyone recommend a better source? I have re-built and replaced motors in
cars before, but this will be the first boat. Is there anything I need to
watch out for? Am I nuts for attempting this?

TIA,
Rich

Merc 4.3 questions
 

I would say that is a good price for a long block. Just make sure it is a
marine engine and not a car engine. There are differences in the cams along
w/ a lot of other stuff. However, you could swap cams w/ the one in your
old one assuming it is still good.

--
Tony
my boats at http://t.thomas.home.mchsi.com



"Rich" wrote in message
m...
A friend of mine has blown the motor in his boat. Apparently the exhaust
went bad, #1 piston has a hole in it. We don't have it torn apart yet.
Is
it possible to rebuild, new bearings, pistons and rings? Or should we
just
drop in a new longblock? Found one for $1800.00, is that a good price?
Can
anyone recommend a better source? I have re-built and replaced motors in
cars before, but this will be the first boat. Is there anything I need to
watch out for? Am I nuts for attempting this?

TIA,
Rich

Merc 4.3 questions
 

Rebuilding a motor is rebuilding a motor....be it an I/O Sterndrive, be it a
car, be it a motorcycle or an OB. Each works the same BUT has different
parts. Just make sure any parts you replace are the CORRECT ones (i.e.
MARINE for your I/O) and you should be fine. For the most part, when it
gets to the motor's 'guts', they all come apart and go back together the
same......a GM V-6 is a GM V-6. It cannot hurt to pull the thing down and
price out what parts you'll need against the price of a block.

It's basically not any different than if you took the same block and made a
'racing' motor out of it for your car....same basic techniques, just some
different parts. That's my take on it. If you want to dive into
it......pull the thing and go for it. Make sure you have a good manual
before you start just to learn any of the 'tricks' or 'special things to
look for' that may be different from an automotive engine.

Steve L.



"Tony Thomas" wrote in message
news:gP%cc.211765$_w.1992054@attbi_s53...
I would say that is a good price for a long block. Just make sure it is a
marine engine and not a car engine. There are differences in the cams
along
w/ a lot of other stuff. However, you could swap cams w/ the one in your
old one assuming it is still good.

--
Tony
my boats at http://t.thomas.home.mchsi.com



"Rich" wrote in message
m...
A friend of mine has blown the motor in his boat. Apparently the
exhaust
went bad, #1 piston has a hole in it. We don't have it torn apart yet.
Is
it possible to rebuild, new bearings, pistons and rings? Or should we
just
drop in a new longblock? Found one for $1800.00, is that a good price?
Can
anyone recommend a better source? I have re-built and replaced motors
in
cars before, but this will be the first boat. Is there anything I need
to
watch out for? Am I nuts for attempting this?

TIA,
Rich