Evinrude and Johnson: Re-Gluing V6 Flywheel Magnets

 

Evinrude and Johnson: Re-Gluing V6 Flywheel Magnets

If you have been in the boating business for very long you have already replaced a magnet or two.magnet 1 When you do this job for the first time it will take you a little longer than the next. This is simply because you not only need to pay close attention the first time but you will also need to make up a set of spacers, this information about boats will be discussed later in the article.

While removing the flywheel you will need to check everything very closely. Sometimes you will be replacing more than magnets. I have seen a magnet chip and get in between the flywheel and the stator, it’s not pretty. Usually centrifugal force won’t allow this to happen but you should look closely at this. The real pain with this is the customer having to magnet 2replace what was a perfectly good stator.

Now go ahead and remove the flywheel, the nut size is 1 7/16”. A universal flywheel puller and the proper screws are necessary to pull the wheel. Evinrude and Johnson Parts & Accessories offers the screws necessary to insure the screws don’t go in too deep and mash any of the parts under the flywheel. Information about boats shows that screw part number to be 307637.magnet 4

Now you can see everything, look things over very closely as I mentioned earlier in the article. Slight dings in the stator should be fine; you will have to be the judge of that, as well as slight chips in a magnet, just because a magnet(s) has popped loose doesn’t mean it’s no good, however if a chunk is gone replace the magnet or magnets. The magnets aren’t that expensive compared to the cost of a stator, don’t skimp, and if you are not sure replace the magnet.

This next information about boats is so frequently done poorly and that would be cleaning all of the parts thoroughly. Now get yourself a piece of sandpaper to clean and rough up the surface where you will re-glue the magnet, I always rough up the back of the magnet also. Now clean all parts again!

magnet 3Evinrude and Johnson offers an epoxy kit for this job, the part number is 431929 and the kit that includes the magnet is 584304.

Before you can glue the magnets you will need a set of spacers, the space between each magnet is 7/16”. What I use and was easy to find, being in this business for over 35 years, is Mercury bolting. Mercury loves that 7/16” fine thread bolt and they work perfect for the job. The instruction sheet does not give this information about boats.

The kits come with everything you need, just don’t overdo the epoxy and end up gluing the bolt to the flywheel. If you do don’t panic, you can break it out but usually breaks the magnets on either side which leads to a bigger expense.