Hi, I have a YAMAHA ME200F inboard diesel and am having trouble
locating the anodes. I think I have found one in the heat exchanger
(some residual zinc on a plug). I cannot get a replacement to fit so I
have tried epoxy gluing a pencil anode.

Does anyone know if there are more than one anode on the engine? The
previous owner did not know about anodes so never replaced them... (bit
scary really).

If anyone can advise if there is a workshop mnaula I would also
appreciate the information. The Austrlain YAMAHA delers are not
familiar with this engine and can't help too much.

"Sinko" wrote in news:1159164573.076333.116300
@i3g2000cwc.googlegroups.com:

I cannot get a replacement to fit so I
have tried epoxy gluing a pencil anode.


Can't help you on the pencil locations, but just want to say gluing them in
place won't work because what makes it work is an ELECTRICAL connection
between the zinc and the engine block and that won't make contact through
epoxy or any other glue. Zinc and the metal they protect are simply
shorted batteries in a salt water electrolyte, slowly eating the zinc away
as the electrolyte (seawater) floats by. The plates have to be shorted
together (zinc to engine).

Larry wrote:
"Sinko" wrote in news:1159164573.076333.116300
@i3g2000cwc.googlegroups.com:

I cannot get a replacement to fit so I
have tried epoxy gluing a pencil anode.


Can't help you on the pencil locations, but just want to say gluing them in
place won't work because what makes it work is an ELECTRICAL connection
between the zinc and the engine block and that won't make contact through
epoxy or any other glue. Zinc and the metal they protect are simply
shorted batteries in a salt water electrolyte, slowly eating the zinc away
as the electrolyte (seawater) floats by. The plates have to be shorted
together (zinc to engine).

Thanks Larry, thats something I hadn't thought of, perhaps I need to
take the cover plate off and get the plug hole re tapped to accept
standard pencils.

Larry wrote:
"Sinko" wrote in news:1159164573.076333.116300
@i3g2000cwc.googlegroups.com:

I cannot get a replacement to fit so I
have tried epoxy gluing a pencil anode.


Can't help you on the pencil locations, but just want to say gluing them in
place won't work because what makes it work is an ELECTRICAL connection
between the zinc and the engine block and that won't make contact through
epoxy or any other glue. Zinc and the metal they protect are simply
shorted batteries in a salt water electrolyte, slowly eating the zinc away
as the electrolyte (seawater) floats by. The plates have to be shorted
together (zinc to engine).

Thanks Larry, thats something I hadn't thought of, perhaps I need to
take the cover plate off and get the plug hole re tapped to accept
standard pencils.

I have the 3 GMF 30 and spent some time trying to find them. The last
word I got was that they weren't there because they weren't needed.
I've had the motor over 15 years mostly in fresh water and have so far
not seen a reason to disagree. I would appreciate hearing if I'm wrong
about this.

Hans Paabor
Toronto


Sinko wrote:
Hi, I have a YAMAHA ME200F inboard diesel and am having trouble
locating the anodes. I think I have found one in the heat exchanger
(some residual zinc on a plug). I cannot get a replacement to fit so I
have tried epoxy gluing a pencil anode.

Does anyone know if there are more than one anode on the engine? The
previous owner did not know about anodes so never replaced them... (bit
scary really).

If anyone can advise if there is a workshop mnaula I would also
appreciate the information. The Austrlain YAMAHA delers are not
familiar with this engine and can't help too much.

Hans wrote:
I have the 3 GMF 30 and spent some time trying to find them. The
last word I got was that they weren't there because they weren't
needed. I've had the motor over 15 years mostly in fresh water and
have so far not seen a reason to disagree. I would appreciate
hearing if I'm wrong about this.

Hans Paabor
Toronto


Sinko wrote:
Hi, I have a YAMAHA ME200F inboard diesel and am having trouble
locating the anodes. I think I have found one in the heat exchanger
(some residual zinc on a plug). I cannot get a replacement to fit
so I have tried epoxy gluing a pencil anode.

Does anyone know if there are more than one anode on the engine? The
previous owner did not know about anodes so never replaced them...
(bit scary really).

If anyone can advise if there is a workshop mnaula I would also
appreciate the information. The Austrlain YAMAHA delers are not
familiar with this engine and can't help too much.

Must be a Canadian/North American/Australian problem, you can buy them here
in the UK at any Yanmar agents.

HI, Dennis, I can best answer this questrion once I take the exchanger
cover off and see if there is any damage... this motor is about the
same age as yours so maybe there is n o need for anodes???

Terry
Dennis Pogson wrote:
Hans wrote:
I have the 3 GMF 30 and spent some time trying to find them. The
last word I got was that they weren't there because they weren't
needed. I've had the motor over 15 years mostly in fresh water and
have so far not seen a reason to disagree. I would appreciate
hearing if I'm wrong about this.

Hans Paabor
Toronto


Sinko wrote:
Hi, I have a YAMAHA ME200F inboard diesel and am having trouble
locating the anodes. I think I have found one in the heat exchanger
(some residual zinc on a plug). I cannot get a replacement to fit
so I have tried epoxy gluing a pencil anode.

Does anyone know if there are more than one anode on the engine? The
previous owner did not know about anodes so never replaced them...
(bit scary really).

If anyone can advise if there is a workshop mnaula I would also
appreciate the information. The Austrlain YAMAHA delers are not
familiar with this engine and can't help too much.

Must be a Canadian/North American/Australian problem, you can buy them here
in the UK at any Yanmar agents.