wipac flywheel magneto

[magnet]

I have a villiers engined minigen generator and i need to remove the flywheel to replace the coil/condenser im not sure if the three tapped holes in the top of the flywheel are to take some kind of puller i would of thought using a puller on the outside edge of the flywheel would be a no no and would risk distortion. Any help greatly appreciated...............Cheers

 

[wristpin]

A Villiers model number or even better an image or two will help.
Pulling on the outer rim is a route to disaster.
If its a two stroke it is likely that the centre nut is also a puller. Undo the nut and it goes slack then tightens, undo further and it pulls the flywheel off its taper. It will be very tight and holding the flywheel against the undoing force really requires a strong strap wrench.

 

[magnet]

its a villiers f15 my thought was to pickup the 3 tapped holes on a plate with a m12 bolt through the centre, bearing on the end of the crank to draw it off.

 

[Bsmith]

its a villiers f15 my thought was to pickup the 3 tapped holes on a plate with a m12 bolt through the centre, bearing on the end of the crank to draw it off.

Yes best way. Some Villiers don't have woodruff key in the shaft and flywheel, just the taper and nut that holds the flywheel in place. Had to time one once by having the piston at TDC and the flywheel magnets next to the coil. Yours may well have a key though.

 

[Robotstar5]

On my C12 the centre nut extracts the flywheel.

 

[gordon stephenson]

I have had a few of those off, Just a piece of plate 6mm or 8mm thick. drill 3 holes to suit tapped holes ctrs and clearance for the tapped hole size, three pieces of threaded rod or longish tap bolts and nuts, tighten evenly and tap ctr of plate when a reasonable tension is applied, Popped straight off every time. I wouldn't bother with a centre jacking bolt,

 

[Alan Reynolds]

If the nut went slack and then tight after about 3/4 of a turn then it is a self pulling flywheel. Just continue to undo the nut and the flywheel will come off. Sometimes a light tap can help once it's tight. If there isn't a Woodruff key then you will have to retime it. Try cleaning the points first and making sure the gap is set. If the engine hasn't been used for some time it might be worth removing the plug and then spinning the engine on the flywheel nut with an electric drill fitted with the appropriate socket. This sometimes revives the condenser. Timing will probably be about 3/16 before TDC.

 

[500e]

The old 8\9e was a self extracting this site is realy handy with exploded views etc
http://www.villiers.info/

 

[wristpin]

The F15 has a keyed flywheel so no need to re-time after removal. 3 X 5/16 UNC tapped holes for pulling. Page 30 in the attached copy manual. If the manual is of use, print it out as it takes up a chunk of my free Dropbox space and I will remove it in due course.
https://www.dropbox.com/s/951veo0razsw361/Villiers F150001.pdf?dl=0

 

[magnet]

Thanks so much for all the help lads greatly appreciated

 

[magnet]

The F15 has a keyed flywheel so no need to re-time after removal. 3 X 5/16 UNC tapped holes for pulling. Page 30 in the attached copy manual. If the manual is of use, print it out as it takes up a chunk of my free Dropbox space and I will remove it in due course.
https://www.dropbox.com/s/951veo0razsw361/Villiers F150001.pdf?dl=0

What a kind gesture Wristpin, thanks very much for that, much appreciated.