Marine Engines (Diesel or Gas)

[Everett Collier]

It is my understanding that the only significant difference in materials
between a marine engine and a non-marine engine, excluding the exhaust
system, is in the use of "brass" for the freeze (expansion) plugs. Two
questions:
1. What am I missing?
2. Why brass with its suceptibility to dezincification?

Appreciate your comments.

Ev Collier

[morgan]

Everett Collier wrote:

I think what you say probably applies to marine vesus industrial motors.
However, compared to automobile motors, the marine versions usually have
beefed-up bottom ends and heavy-duty pistons.

Regards,
Morgan

[M DeMetz]

Brass doesn't rust.

Also the carburation, air filter, ignition, alternator, starter, fuel pickup
system, oil pan, operating temperature.

Are just a few of the primary differences.

Mike

***************************************

>
>It is my understanding that the only significant difference in materials
>between a marine engine and a non-marine engine, excluding the exhaust
>system, is in the use of "brass" for the freeze (expansion) plugs. Two
>questions:
> 1. What am I missing?
> 2. Why brass with its suceptibility to dezincification?
>
>Appreciate your comments.
>

>Ev Collier
>

[LBRTY4US]

In article <3634B42E...@ix.netcom.com>, Everett Collier
<us01...@ix.netcom.com> writes:

> 2. Why brass with its suceptibility to dezincification?

It's bronze.

[Bryon Kass]

Possibly the brass is not the type that is zinc and copper which is
less noble and will degrade. The best way to prevent any corrosion
in the block is to go for fresh water closed cooling via heat exchanger.
Bryon Kass
webmaster and
Custom Design
150 Mechanic St.
Foxboro, MA 02035
508-543-9068 or fax 508-543-5127, Foot yard 508-384-2415
in THE ENGINE ROOM http://home.ici.net/~cusdn

Everett Collier wrote:
>
> It is my understanding that the only significant difference in materials
> between a marine engine and a non-marine engine, excluding the exhaust
> system, is in the use of "brass" for the freeze (expansion) plugs. Two
> questions:
> 1. What am I missing?

> 2. Why brass with its suceptibility to dezincification?
>

[enig...@webtv.net]

sorry,but marine engines are different animals from road use,one reply
you got said beefup engines parts, diesel mics at the shop i drive
at, said the marine engines are made for higher R.P.M. somtethin to do
with it, and can take it as then a car engines i just
dont know,and as for parts being beefup it's true all engine blocks
are thicker and a lot more if you like try calling
up a tect school you can try pennco tect in black wood n,j, thay got
marine dept maybe thay can give you the RIGHT FACTS and INFO
i like to try my some day