[jeswinehart]

I have a idea about making those stock Tecate fly wheels better.
The fly wheel I pulled off my machine actually had 1 loose magnet and it was only by the grace of God it did not take the electronics out.
I bought a small lathe that will be used for final finish on the composite resins (basically plastic) used to encapsulate the magnets.
(got tired of borrowing friends lathes)
I will be lightning up my fly wheel to about 2 lbs. or slightly less since i only use my T-3 for straight line sand dragging and will keep some on the heavy side for those that like the woods riding.
Probably won't be until next week end i get to test run these but will keep you guys posted on the results.

john

 

[mpwrd3]

Thats a nice set up!

 

[JohnBeton]

Hi, what material are you using to reglue the magnets and fill up the space between them ? I have one bad flywheel too, maybe I can fix it to keep as a spare one.

 

[jeswinehart]

John B

I am using Seals All glue that is found in any hardware. It will be thin enough to not make the magnets stick out to far and will hold up in a bad environment. I was instructed to use this glue on re-installing replacement brake pads on rotors, on the 6 wheelers I had in the past and it had never let me down so this was my choice of adhesive.
You most likely already know what I about to say but just in case I can save you some of the mistakes i made in getting this far (being experienced is knowing what you done wrong before right )
I remove all magnets using a propane torch on the outside of the fly wheel to loosen the glues holding the magnets in place.
Sand blast the metal core and sand paper clean the magnets.
re-install the magnets with careful attention to placement.
Magnets at 11 and 4 o'clock are to have a pulling affect on another magnet.
Magnets at the 8 and 2 o'clock position are to have a "pushing" away affect on another magnet.
In the pics I also put a positioning text to line them up correctly once you have the polarities in correct order.
If I can be of any more help or perhaps word differently to be able to understand what the heck I just typed, just let me know.
I ain't so good at typing out things sometimes.
In one of the pictures you can see the alu insert I machined down to use as a plug to keep the resins in place until they cured.
If you make up some thing similar, be sure to use a "mold" release agent. Vaseline will work in a pinch if that is all you have available.

john

 

[370]

wow good thread!!!

 

[jeswinehart]

Got my lathe set up, what a mess maker !

Well this is the FIRST time I have ever used a lathe ~ ever.
Defintly a turn of the century lathe but still do what it is supposed too do
I got it wired up and correct belt on it and dialed in to the best of my reckoning, made a adapter plate thing-ma-bob to hold a fly wheel in and I am very happy with the results .
The real test will be bolting on one of these and see how they act but that will be this weekends part of the project. I am gonna try a heavy stock one first and then a lightened up one for comparison

john

 

[JohnBeton]

that is real nice work.

 

[halfton]

lathe

hey that is some nice work . just a question does that tool chatter or vibrate when you cut that part ? if it does then slide it back in the holder instead of it sticking way out . just a question from a machinist .

 

[jeswinehart]

Yes, lots of chatter.

You are right Hafton, another fella said to do the same thing and it did clear up the chattering, alot !
I got the fly wheels all cleaned up on the lathe and put one in for the big test fire.
Perfect, no problems what so ever !
Needless to say I am tickled pink to be able to do this. I will test out the rest of them on my trike but other then weight, they was all put together the exact same way but still feel i better at least test start them on my trike.
I have not shaved off alot of weight off any of them but I put the lightest one on (2.24lbs.) This will be the one i whittle down to 2 lbs. or less.
Even just the 2.24 lb., one compared to the stock 3.5ish lb. i pulled off, let the engine revs fall off noticeably faster.
And after test firing the heaviest one that a buddy wants for his trike, there defintly a notiocable difference on how the revs fall off.

Thank you for the advice AND support guys ! john

 

[Tobys 2 strokes]

That looks like a great idea.
How much are you going to charge to do this??
It looks like a good excuse to put 10 or 20 tanks of fuel through your bike for a durability test.

 

[jeswinehart]

I am thinking 45 dollars.

To clean up and encase customer owned flywheel. That price would include the shipping fee back to owner.
Probably figure a week turn around time upon me receiving any sent to me.

john

 

[Tecaster]

I think i need to have my tecate 4 flywheel refurbished. All the magnets have not moved, but they all have broken pieces off of them. Does it need refurbished?

 

[jeswinehart]

Oh, not really

The one I am using had chips in the magnets (still dose). Its just that you don't see them or they don't stand out after i encapsulated it.
If it still works and what ever caused the magnets to get chipped up is corrected I would say its good to go,,, for now.
The encapsulation can be viewed more as a precaution to avoid the magnet(s) coming loose and wrecking the electronics.

john

 

[the6car]

Back in 1994 the magnets on my 85 t-3 let loose. A guy told me the same thing and use this glue for bonding brake pads. The glue wasn't real pliable but it also wasn't too hard that it would shatter. Man did that stuff bond. The tabs on the flywheel really made it a mistake free operation. Sandblasted it, glued and filled in between the magnets pretty much the same way your doing it. Then I had it lightened and cleaned up just to bring it back to the original weight though. I sold the bike back in 03 to a friend at work. It still functions just fine to this day, never had any trouble with it. That's 15 years of trouble free operation and 1 of the magnets had a slight crack in it. Guess that says something there.
Your stuff should be just fine jeswinehart they look real good.
Tell ya what I have a flywheel here with 3 magnets on it, been looking for a magnet. If you have a spare 1 your looking to sell or if you decide to offer this service I think I'd have you do it. Don't see a reason not to.

 

[jeswinehart]

Great info/story !

I KNEW I could not have been the only fella to dream this up !
I have several magnets in good shape but the problem is, they are all the same polarity.
I can make the magnet form, use atomized iron powder to give them a 50 % iron content but where i have run into a dead end is getting them magnetized properly.
But anyway, you can have a magnet and then you will be able to tell if it is the correct polarity or not. I think that would be the best route since me shipping a magnet to you weight wise would be cheaper then getting a fly wheel to me and then having a 50/50 shot of having the correct magnet.

PM me your mailing address and one will be on its way my friend.

john

 

[playasridebmx]

do you keep the timing marks on the flywheels when you turn them on the lathe

 

[jeswinehart]

Timing marks

Not all fly wheels get milled down on the outside but if required, yes there are going to be alignment marks to reference too.

 

[dynebob1]

Are you still refurbishing flywheels? If so what are your charges?

 

[dirk_411]

He left the site when admin booted ori, I might have his email addy

 

[MIK6]

John is very active over on 3ww.. 3WHeeLeR WoRLD - Forums, Brochures, Specificiations, Technical Assistance, and More!
His products are awesome! I use quite a few on my T3s

MIK6/ Mike