'82 Johnson 235 HP - looper?
 

I don't have the s/n with me, but I've identified this engine as a 1982
Johnson 235. It was remanufactured by a professional company sometime
in the more recent past.

This question doesn't really matter, because the engine works fine, but
I'm curious. I've been lead to believe this is a cross flow engine
because OMC didn't build loopers in the V-6's until the mid-80s? I've
kind of oriented myself to looper vs. cross flow and see an obvious
difference is the surface of the piston: cross flow have a dome sort of
shape, while loopers are essentially flat. When I look through my
spark plug holes, the pistons appear dead flat.

Just curious.

Camilo wrote:

I don't have the s/n with me, but I've identified this engine as a 1982
Johnson 235. It was remanufactured by a professional company sometime
in the more recent past.

This question doesn't really matter, because the engine works fine, but
I'm curious. I've been lead to believe this is a cross flow engine
because OMC didn't build loopers in the V-6's until the mid-80s? I've
kind of oriented myself to looper vs. cross flow and see an obvious
difference is the surface of the piston: cross flow have a dome sort of
shape, while loopers are essentially flat. When I look through my
spark plug holes, the pistons appear dead flat.

Just curious.


It's a cross-charge if it's a 1982.

Rob

Cross Flow.

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

-
"Camilo" wrote in message
ps.com...
I don't have the s/n with me, but I've identified this engine as a 1982
Johnson 235. It was remanufactured by a professional company sometime
in the more recent past.

This question doesn't really matter, because the engine works fine, but
I'm curious. I've been lead to believe this is a cross flow engine
because OMC didn't build loopers in the V-6's until the mid-80s? I've
kind of oriented myself to looper vs. cross flow and see an obvious
difference is the surface of the piston: cross flow have a dome sort of
shape, while loopers are essentially flat. When I look through my
spark plug holes, the pistons appear dead flat.

Just curious.

Camilo wrote:
I don't have the s/n with me, but I've identified this engine as a
1982
Johnson 235. It was remanufactured by a professional company
sometime
in the more recent past.

This question doesn't really matter, because the engine works fine,
but
I'm curious. I've been lead to believe this is a cross flow engine
because OMC didn't build loopers in the V-6's until the mid-80s?
I've
kind of oriented myself to looper vs. cross flow and see an obvious
difference is the surface of the piston: cross flow have a dome sort
of
shape, while loopers are essentially flat. When I look through my
spark plug holes, the pistons appear dead flat.

Just curious.

piston crown has little to do with it. port structure is more
important.
cross flow engines typically have 2 opposing ports intake/exhaust. loop
charged engines will have multiple intake ports and an exhaust port.

Thanks for the info guys. Just a matter of curiosity more than
anything else.

On 9 May 2005 15:32:00 -0700, "Camilo" wrote:

I don't have the s/n with me, but I've identified this engine as a 1982
Johnson 235. It was remanufactured by a professional company sometime
in the more recent past.

I had four of these hung of a 30' Eliminator. It would run 180 mph.