Yanmar Magnesium Anodes?

[Alan_Douville]

My Yanmar (6LP STP2) has been fishing Lake Michigan for about 8 years now, no signs of corrosion and I have Zinc Anodes in it. I have always wanted to replace them with Magnesium Anodes but for the life of me, I can't find anyone who makes a Kit for the engine in Magnesium? Any feedback on this one? Do I just leave the zinc ones in and hope for the best, or does anyone know who makes a kit for Yanmar's?

Thanks

Alan

[RobS]

BoatZincs.com sells magnesium engine anodes
http://www.boatzincs.com/engine-magnesium.html

If you were back/forth between salt & fresh I'd stay zinc but for fresh only I'd switch them out.

[Alan_Douville]

Agreed Rob, For those interested, this is what the Magnesium Part Numbers are for Yanmar 6LP Anodes. BoatZincs.Com got back very fast.

Item # Description Qty
E-2-Magnesium E-2-M Engine Magnesium Anode 1
E-1F-Magnesium E-1F-M Engine Magnesium Anode 4

[RobS]

For sure you only need one of the E-2's for the intercooler. Four E-1's will take care of your heat exchanger and lube oil cooler, they take 2 each. But what about your tranny (gear oil) cooler and fuel cooler. They "may" have the E-1 zincs as well, some do, some don't..

[Alan_Douville]

I don't think I have those... My Service Manual showed this...

[RobS]

The service manual should not be your guide here, like I said, some do and some don't have zincs on the gear and fuel cooler, the only way to know for sure is to check. BTW, that page you posted does list a fuel cooler zinc...and it refers you elsewhere for the gear.

[Alan_Douville]

Well I bought Extras Just in Case! Will make sure I find them all

Alan

Pics to follow of what the job looks like. Thanks for the Advice

[RobS]

Good move buying extra you'll either need them now or later. At least you don't have to worry about dribbling salt water on things when you pull out the zincs. I used to run her on fresh water at the dock for awhile before pulling the zincs. You're already one step ahead! I always use marine grease or pipe thread sealant...don't get caught up in the old loss of continuity wives tale..