Good day,

Just wondering what kind of compression an old merc motor should have?
Also, is it possible that an engine not used for a while would need a good
run for the rings to seat properly again and thus increase the compression?
Relating to a 72, 80hp merc that wasn't run for likely 8 years

Cheers

Anything over 100 is livable. Use 2 cans of power tune - and call me in the
morning.

-W

"Chris" wrote in message
. ..
Good day,

Just wondering what kind of compression an old merc motor should have?
Also, is it possible that an engine not used for a while would need a good
run for the rings to seat properly again and thus increase the
compression?
Relating to a 72, 80hp merc that wasn't run for likely 8 years

Cheers

Ok you've got me on that one, I'd try anything in a bottle for this motor,

"Clams Canino" wrote in message
link.net...
Anything over 100 is livable. Use 2 cans of power tune - and call me in
the
morning.

-W

"Chris" wrote in message
. ..
Good day,

Just wondering what kind of compression an old merc motor should have?
Also, is it possible that an engine not used for a while would need a
good
run for the rings to seat properly again and thus increase the
compression?
Relating to a 72, 80hp merc that wasn't run for likely 8 years

Cheers

"Chris" wrote in message
...
Ok you've got me on that one, I'd try anything in a bottle for this motor,

"Clams Canino" wrote in message
link.net...
Anything over 100 is livable. Use 2 cans of power tune - and call me in
the
morning.

-W

I think he's referring to de-carboning an engine which can increase
compression. It's an easy DIY procedure and can have significant results.
I'd suggest searching the "forums" at www.iboats.com or do a google search
on this newsgroup to find out more.

There is a FAQ on Iboats:
http://www.iboats.com/cgi-bin/ubb/ul...ubb=forum;f=36

Look under decarboning and you'll see excellent descriptions on two
methods - the "tank" method and the "spray into the carbs and cylinders"
method. I've done both. For me, the "tank" method is quite a bit easier
and I felt I did a more thorough and better job doing it that way.

Merc makes a product to do this called Power tune. OMC makes a similar
product (called Engine Tuner??). The other major manufacturers probably
make similar products for decarboning, tuning, ring free-ing, etc. This
past week, I used Seafoam which is readily available at autoparts stores in
the US and Canada (Carquest, Schucks, and NAPA are some I personally know
of). It comes in liquid (called Seafoam - for tank method - this is what I
used) and aeorosol (called Seafoam Deep Creep - for spray method) and is
recommended by many on those forums.

I believe any of these products (as well as others that might be available)
can be used on any engine - following instructions of course. So use
whichever one you can easily obtain.

By the way, there's many discussions on de-carboning, compression, etc. in
those iboats forums - do a search on that site to find more than you care to
know. Again, it's an easy DIY and "generally" thought to have beneficial
results both as a preventative as well as a treatment.

--
Cam

Yep

-W

"Camilo" wrote in message
...
"Chris" wrote in message
...
Ok you've got me on that one, I'd try anything in a bottle for this
motor,

"Clams Canino" wrote in message
link.net...
Anything over 100 is livable. Use 2 cans of power tune - and call me
in
the
morning.

-W

I think he's referring to de-carboning an engine which can increase
compression. It's an easy DIY procedure and can have significant results.
I'd suggest searching the "forums" at www.iboats.com or do a google
search
on this newsgroup to find out more.

There is a FAQ on Iboats:
http://www.iboats.com/cgi-bin/ubb/ul...ubb=forum;f=36

Look under decarboning and you'll see excellent descriptions on two
methods - the "tank" method and the "spray into the carbs and cylinders"
method. I've done both. For me, the "tank" method is quite a bit easier
and I felt I did a more thorough and better job doing it that way.

Merc makes a product to do this called Power tune. OMC makes a similar
product (called Engine Tuner??). The other major manufacturers probably
make similar products for decarboning, tuning, ring free-ing, etc. This
past week, I used Seafoam which is readily available at autoparts stores
in
the US and Canada (Carquest, Schucks, and NAPA are some I personally know
of). It comes in liquid (called Seafoam - for tank method - this is what
I
used) and aeorosol (called Seafoam Deep Creep - for spray method) and is
recommended by many on those forums.

I believe any of these products (as well as others that might be
available)
can be used on any engine - following instructions of course. So use
whichever one you can easily obtain.

By the way, there's many discussions on de-carboning, compression, etc. in
those iboats forums - do a search on that site to find more than you care
to
know. Again, it's an easy DIY and "generally" thought to have beneficial
results both as a preventative as well as a treatment.

--
Cam

ah ok, Merc makes some bottles of the stuff

"Clams Canino" wrote in message
link.net...
Anything over 100 is livable. Use 2 cans of power tune - and call me in
the
morning.

-W

"Chris" wrote in message
. ..
Good day,

Just wondering what kind of compression an old merc motor should have?
Also, is it possible that an engine not used for a while would need a
good
run for the rings to seat properly again and thus increase the
compression?
Relating to a 72, 80hp merc that wasn't run for likely 8 years

Cheers