[secant0give]

Well I managed to get the motor magnets all sorted. I found out that the best glue for this purpose is called Loctite 325 and it's used with loctite activator 7075. You put the activator on one surface and the glue on the other.
This is the stuff that the guys from CSIRO used in the manufacture of their solar car motors, Infact most of the front runners in the solar care race used CSIRO motors at about 25K$ a peice.
Aparently bet best technique is to use the loctite 325 to bond the magnets in and then grout the spaces in between them with Robnor PX700K special epoxy.
How lucky can you be, They Just hapined to have some in the fridge that was going to be thrown out because it had recently reached it's used by date.

Well let me tell you it was no mean feat getting the other 6 magnets that wern't loose out of the motor with out breaking them. I figured that If half of them had let go the others might well soon follow and it would worth doing the lot with the good glue.

It was almost as much fun scraping the old adheasive off the magnets and from the inside of the motor's flux ring to get them nice and clean. I must mention that I marked the 14 magnets with red and blue perminant marker for north and south as they have to go back in the correct order, alternate north and south otherwise the thing won't work properly.

Then came time to put the glue on and place the magnets back. They are bloody strong magnets and you have to hold them with a pair of plyers and some force to get them in the position you want them in. Fortunatly I had another caperable pare of hands to give me some much needed help in holding the motor while I wresseled the sticky glue coated magnets into place with my trusty long nose pliers. On more than one occasion flowers in the garden were seen to wilt due to the nature of the language being used.

Finaly all magnets were bonded in, hopefully this time for good, but not before hands plyers and many other things were covered in loctite 325. I don't know if you know the smell of loctite but It realy irritates me and once you get it on you it's very hard to wash off.

By then I needed a Bex, a cuppa tea and a good lie down.

The nest day I cleaned then grouted the spaces in between the magnets. Cleaning with acetone
and grouting with Robnor PX700K epoxy. The epoxy was just a little on the thin side and I mixed a small amount of filler with it so it wouldn't slump. this made it a lot easier to do the grouting.

All in all It was a difficult and unpleasent task but the end result looks very nice. I'll put the motor back in the Yak tonight and might even get it up for a fly on the weekend, weather permitting.

Moral of the story is, buy a good motor the extra money is definatly worth it. If I was to charge for fixing this one it would be enough to buy two good motors I reckon.