OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Honda Engines chonda i think

To me it looks as if the glue just runs for the depth of the flywheel, and you could easily run a hacksaw across the gap and remove the glue without affecting either the magnet or the flywheel. However I might be missing something.


See the red ovals. That is where it looks as if a hacksaw would cut the glue without touching anything else?

Grumpy I have drilled the screw surgically then hacksawed the two spots you pointed out ( great minds think alike) and found that it was glued underneath aswell so I then put some heat into it and after a few minutes ave it a light tap and off it came so far so good . Next step tmrw is to exstract the magnet out of the alloy caseing which I'm going to try and hacksaw around the magnet but I will wait to see what you think I should do first .
I will give it a good clean first eg the glued side.

That looks like good progress, roebuck. Just one thing though: check that the magnet is still magnetised. Heating magnets can have a bad effect on them.

What I don't understand yet, is how the original magnet carrier attaches to your other flywheel. Can you explain that, with a picture or two?

It does look as if careful hacksaw work is a good safe way to remove the new magnet from the new carrier, but I'm not yet clear on whether the whole of the new carrier and magnet could be installed on the old flywheel. If it fits, it seems like you could remove the glue residue from it, put a new batch of glue on it, and screw it onto the old flywheel as a permanent job, much better than the original one. Of course that requires that the whole new magnet and carrier weighs exactly as much as the old magnet and carrier, to keep the engine in balance, but you'll have to check the balance anyway, and correct it if necessary. We can talk about that once this part is sorted out. Essentially, you would have to either drill a hole or two in the flywheel rim opposite the new magnet to reduce weight, or bolt and glue on a small piece of steel opposite the new magnet to increase weight. It is not a big deal to do.

Ok the original carrier is just a plastic border that fits over the magnet and then the magnet plate over that an then the screw. There's not much quality in these parts .

If the new magnet and carrier is a neat fit into the old flywheel, and the attaching screw lines up nicely with the tapped hole, I think I'd much rather use that and have it rigidly and permanently attached. The only downside is the balancing job, which can be fun anyway. To find out what it takes to balance it, just weigh the old bits (magnet dust, plastic surround, and cover plate, but not the screw), then weigh the new bit (magnet and surround all in one bit, but not the screw). Subtract the weight of the old stuff from the new stuff. You will then have to make up a small mild steel plate to screw onto the opposite side of the old flywheel, in the recess there, that weighs the difference in those weights. Of course you will have to drill and tap the opposite side of the flywheel to mount that small steel plate - you can't rely on glue alone, someone could get hurt.

Have already broke the magnet ,had it cut out neatly and went to clean the edges up to get the metal plate off then wamo a bit flew off it. My fault start again. What a bugger. Looking forward to doing it again as soon as I find another Flywheel . I will try your sainly approach next time.

Grumpy , a mate of mine oldie who frequence outdoorking found a website . He googled Flywheel magnet for 6.5hp and I think I may have one soon. Will let you no how I go. If this was my machine I would be in such a hurry . Thanks heaps for your help and take care .ps hardly ever see a honda at the recycling centre and I think that says a lot,

Thanks for the update roebuck. You can see why I wanted to keep the magnet attached to its mounting block and put the whole thing onto the flywheel. I'll look forward to your next report when you get another magnet.

I understand a trickle of Hondas does turn up at recycling centers, but they seem to be pretty much end-of-the-road examples. A contractor gets what he thinks is the last out of them, then they go to a salvager. The salvager either makes one-out-of-two and sends the offcuts to the recycling center, or fixes them up just well enough for them to run for a while as a home lawnmower, and then go to recycling. Having said that, I've seen examples of ex-contractor Hondas on the way to a recycler that were fairly fixable. Sometimes ex-privately owned ones are not too bad at all, but if they are complete and running, they go to ebay and sell for high prices. I think the biggest problem the salvagers have, is the high price of Honda parts, and the rarity of second hand parts. That is why they tend to make one-out-of-two, which wastes a lot of good components.

Ok Grumpy , I received the Flywheel today . Had a good look at it and it appeared to be a lot more heavily glued. I had a talk to the guy from ASSIESPEED (Mark) and told him what had happened so he said he'd have a good look at it before he'd send it. It works perfectly for a total of $60 including postage the machine is up and running sweet. Thanks aheap for your help Grumpy and a thankyou to Oldie who found the Flywheel .