sacrificial anodes

[baylinerbuddy]

Looking to change the anodes on my outdrive this spring.<br /><br />It is a '95 Mercruiser alpha 1, (think it's a gen 1). The anodes are magnesium (boating in fresh water).<br /><br />I've been looking at the anodes for a while, looks pretty straight forward (unscrew a couple of screws, take old ones off, put new ones on).<br /><br />My questions are: Is this true? Does the skeg on the rear of the unit simply twist a little and to remove from the unit? Is a package of five anodes expensive ? (Canadian dollars)<br /><br />Thanks in advance for the help...been enjoying reading other advice you guys offer.

 

[rodbolt]

Re: sacrificial anodes

hello<br /> try to post the drive seriel, or at least tell us if the trim cylinders have cresent moon shaped anodes on the trim caps.

 

[baylinerbuddy]

Re: sacrificial anodes

serial number: OF565146<br /><br />the anodes on the trim pistons are indeed crescent shaped.

 

[rodbolt]

Re: sacrificial anodes

that should be the GenII the alpha 1 unit did not have them. not having a parts manual here I just bought the 8887656q01 kit for one here in the salt pond. it cost 73 dollars for the kit and contained all the gaskets,fasteners and continuity washers. but that was for the aluminium saltwater version. the freshwater version may be a different part number.

 

[Don S]

Re: sacrificial anodes

You have a Alpha I Gen II drive. The Gen II started in 91 and everything after that has been the Gen 11 style. <br /><br />The trimtab anode has a bolt down through a hole in the housing. Best thing to do is get a manual for your engine and drive. ALL the preventative maintenance items are listed, and there are a lot of them.<br />Below is a link to a 2000 owners manual, it will explain a lot of your questions.<br /><br /> Owners Manual

 

[jimmythekid]

Re: sacrificial anodes

Rodbolt and DonS make thier living off those, listen to them, they know what they are talking about. Get a manual they help tremendously. right Guys? <br /><br />Welcome to iboats

 

[baylinerbuddy]

Re: sacrificial anodes

thanks for the help fellas...is there a web site where i can purchase a manual?

 

[Don S]

Re: sacrificial anodes

Here is a link to order a manual from Merc. <br /><br />Order Manual <br /><br />There is also an online manual you can access for the drive,<br /> Drive Manual<br /><br />Here is some more info on the anode kits.<br />Kit # 888755Q1 is Magnesium anodes for FRESH water only<br />Kit # 888756Q1 is Aluminum and is for Saltwater and Fresh water.<br />Here is a picture of the kit.<br />