Don't know what this is....

[renelson]

Aight, I am feeling pretty stupid...<br /><br />I am trying to figure out what this part is.<br />It consists of two peices of metal on either side of the lower unit (25 hp johnny), just above the prop. They are joined by a bolt that goes through the lower unit from one side to the other. The metal looks corroded, so I am sure that it has something to do with "corrosion control" or something. Can anyone help me out? <br /><br />Oh yeah, while trying to unscrew the bolt that holds the two peices together, I sheared the bolt in half. The half that it still in the peice of metal is so corroded that I don't think it's going to come out, so I think I might have to buy a new part or drill it out or something. <br /><br />Thanks fellas...help would be appreciated

 

[jay gravely]

Re: Don't know what this is....

Thats your anodes dont worry the new ones come with the bolt.

 

[Dunaruna]

Re: Don't know what this is....

It's probably a sacrifical anode. Got a pic?

 

[jay gravely]

Re: Don't know what this is....

you didn't give the year but for my 94 evinrude 25 the anode kit p/n is 0434029 that may cover several years

 

[renelson]

Re: Don't know what this is....

No pic now. I don't have my digital camera here at the house. The year is a '98 and it looks like one side's part no. is 336204 and the other is 336205. If it is an anode, should I just get a nut/bolt and put it back on, or should I get another anode? By the way, what's it for????<br />Thanks fellas.

 

[jay gravely]

Re: Don't know what this is....

its the same as the 94 evinrude the kit number I gave you is what you need

 

[jay gravely]

Re: Don't know what this is....

If they seem corroded I would just get new ones. If they are not bad clean them up and re-install. They are sacrafical anodes the take the corrosion and slow it down from attacking your outboard. when you install the new ones make sure the area they mount is clean and not painted over.

 

[renelson]

Re: Don't know what this is....

Here's a pic of the anode...

<br /><br />I cleaned the anodes, drilled them out and bolted them on. Will this method work just the same? From the factory they weren't bolted on, they were attached by a screw.<br />Thanks!

 

[surlyjoe]

Re: Don't know what this is....

DUDE! that camo rocks! where'd ya get it?

 

[renelson]

Re: Don't know what this is....

Got it from a place called Mack's Prarie Wings - it's a sporting goods store that is exclusively duck hunting stuff in Stuttgart, Arkansas. You can get it online at http://www.mackspw.com <br />Do a search on "Camoclad." You can even camo your vehicle if you want to! Good stuff too, I figured it would come off in the water, but it has stayed put so far.

 

[essdee]

Re: Don't know what this is....

Hey WW, I had the same problem when I replaced the lower unit anode on my evinrude90... the bolt sheared off and it took a considerable amount of gentle chipping and sanding to get the anode free of the cavity it sits in.<br /><br />When I replaced it with a new one, I decided not to use a bolt that screwed in to the anode, but to instead get a bolt slightly slimmer than the inner diameter of the anode and secure the thing with a nut and washer - similar to what you've done. This should make it easier to replace the damn thing next time.<br /><br />According to my service manual, the thing to ensure is that the anode is conducting electricity and is completetly grounded with the lower unit metal. If not, then it won't do its job. Apart from ensuring the mounting area is free of grime and paint, the manual recommends using an ohm meter (resistance meter) to confirm that the anode is totaly grounded. To do this, you connect one terminal of the meter to any exposed engine metal part and the other one to the anode. The meter should show zero or next to zero resistance.<br /><br />Hope this helps!<br /><br />PS. Depending on your engine, there may well be other anodes requiring inspection/replacement. Another common location is somewhere on the transom mounting bracket. For obvious reasons, they will only be found in places under the waterline. Which means they'll probably be jammed solid! Have fun ; )

 

[renelson]

Re: Don't know what this is....

Evindude,<br />Thanks - you answered my question! I'll try to get my hands on a meter and check the resistance. By the way, great user name!!<br /><br />This site is the greatest thing since sliced bread. By just surfing around a little bit, I have learned so much from the guys (and gals) on this site. THANKS!!!