Gotta question - do your engines have an EMM (Engine Management Module
- aka "computer") and if so, how is it cooled?

Wizard of Woodstock wrote:
Gotta question - do your engines have an EMM (Engine Management Module
- aka "computer") and if so, how is it cooled?


Heh, heh, heh.

1. Yes.

2. Very well, and thanks for asking.

On Jun 4, 9:24*pm, HK wrote:
Wizard of Woodstock wrote:
Gotta question - do your engines have an EMM (Engine Management Module
- aka "computer") and if so, how is it cooled?

Heh, heh, heh.

1. Yes.

2. Very well, and thanks for asking.

This from the alleged mechanical engineer.

On Thu, 04 Jun 2009 21:18:05 -0400, Wizard of Woodstock
wrote:

Gotta question - do your engines have an EMM (Engine Management Module
- aka "computer") and if so, how is it cooled?

Yes, Honda BF20 OB, not cooled at all as far as I know.

Yes, Mercruiser 6.2L EFI I/O, ditto.

The EMM knows all and tells all, except when it doesn't. Sensor
reliability appears to be more of an issue than the EMM itself.

On Jun 4, 8:18*pm, Wizard of Woodstock wrote:
Gotta question - do your engines have an EMM (Engine Management Module
- aka "computer") and if so, how is it cooled?

Tom,Computers on cars and large diesel equipment arn't cooled via
special aperatus. So I don't see why they would be on a marine
application.

"Tim" wrote in message
...
On Jun 4, 8:18 pm, Wizard of Woodstock wrote:
Gotta question - do your engines have an EMM (Engine Management Module
- aka "computer") and if so, how is it cooled?

Tom,Computers on cars and large diesel equipment arn't cooled via
special aperatus. So I don't see why they would be on a marine
application.

--------------------------

I recall reading that they are. They are mounted on a heat sink that in
turn is mounted on a surface that the heat is removed from by the engine's
water cooling system. The outboards don't have the ambient, convective
cooling that cars and trucks have.

There were some early, computer controlled outboards that had some problems
due to inadequate cooling of the computer, although I don't remember which
engine manufacturer it was. I don't think it was Etec and whoever it was
redesigned it to resolve the problem.

Eisboch

On Jun 5, 5:01*am, "Eisboch" wrote:
"Tim" wrote in message

...
On Jun 4, 8:18 pm, Wizard of Woodstock wrote:

Gotta question - do your engines have an EMM (Engine Management Module
- aka "computer") and if so, how is it cooled?

Tom,Computers on cars and large diesel equipment arn't cooled via
special aperatus. So I don't see why they would be on a marine
application.

--------------------------

I recall reading that they are. * They are mounted on a heat sink that in
turn is mounted on a surface that the heat is removed from by the engine's
water cooling system. *The outboards don't have the ambient, convective
cooling that cars and trucks have.

There were some early, computer controlled outboards that had some problems
due to inadequate cooling of the computer, although I don't remember which
engine manufacturer it was. *I don't think it was Etec and whoever it was
redesigned it to resolve the problem.

Eisboch

Heat is not a friend of microchips, that's for sure.

On Fri, 05 Jun 2009 11:48:19 -0400, Gene Kearns
wrote:

On Thu, 04 Jun 2009 21:18:05 -0400, Wizard of Woodstock penned the
following well considered thoughts to the readers of rec.boats:

|Gotta question - do your engines have an EMM (Engine Management Module
|- aka "computer") and if so, how is it cooled?


Hmmmmm.... gonna have to pull a cover to be sure, but I think mine is
water cooled...

I'm sure the block, crankcase, intake manifold, fuel system and the
oil are water cooled. The cowl is also fan cooled and then there is
that odd looking vent at the top rear.....

That's a little different than mine, but it's close.

Wizard of Woodstock wrote:
On Fri, 05 Jun 2009 11:48:19 -0400, Gene Kearns
wrote:

On Thu, 04 Jun 2009 21:18:05 -0400, Wizard of Woodstock penned the
following well considered thoughts to the readers of rec.boats:

|Gotta question - do your engines have an EMM (Engine Management Module
|- aka "computer") and if so, how is it cooled?


Hmmmmm.... gonna have to pull a cover to be sure, but I think mine is
water cooled...

I'm sure the block, crankcase, intake manifold, fuel system and the
oil are water cooled. The cowl is also fan cooled and then there is
that odd looking vent at the top rear.....

That's a little different than mine, but it's close.

Does that mean your etec's aren't so special? :)

My Yamaha F225 had a water-cooled EMM, too. I presume my F150 also has one.

Gosh.

On Fri, 05 Jun 2009 17:11:33 -0400, HK wrote:

Wizard of Woodstock wrote:
On Fri, 05 Jun 2009 11:48:19 -0400, Gene Kearns
wrote:

On Thu, 04 Jun 2009 21:18:05 -0400, Wizard of Woodstock penned the
following well considered thoughts to the readers of rec.boats:

|Gotta question - do your engines have an EMM (Engine Management Module
|- aka "computer") and if so, how is it cooled?


Hmmmmm.... gonna have to pull a cover to be sure, but I think mine is
water cooled...

I'm sure the block, crankcase, intake manifold, fuel system and the
oil are water cooled. The cowl is also fan cooled and then there is
that odd looking vent at the top rear.....

That's a little different than mine, but it's close.

Does that mean your etec's aren't so special? :)

My Yamaha F225 had a water-cooled EMM, too. I presume my F150 also has one.

Gosh.

It does.
--
John H

"The problem with Socialism is that you eventually run out of other people’s money." --Margaret Thatcher