Short Wick

[BJJ]

Dear Forum

I have purchased a number of ignition coils via eBay over the last 12-24 months,  only to find the have short/chopped leads.  Is there any way to extend or rejuenate the length to whats required to reach the plug?

I know you can get joiners for hi tension leads on Cars,  but I prefer to not get this drastic with such a short lead.

Any info appreciated.

[Doc]

I have used a thin brass/copper woodscrew as well as a long thin brass picture framing nail before. Simply push/screw it up the coil lead, cut the head off and push/screw the extention piece then wrap a bit of tape or fit a rubber sleeve over the join. May not be the most ideal method for conductivity but eh, it works fine and costs nothing  if you use normal mild steel it will corrode like wildfire and you'll end up with poor spark.

[Nathan S]

As Doc says.
Silicone/silastic and a couple of layers of heat-shrink over the top will also make the join water-proof and more physically robust.

Just don't try to put spark down the lead until you're sure the silicone has fully cured. Some silicones seem to become a bit conductive if you do this and I haven't worked out which ones do or which ones don't.

[brent j]

Black silicone will conduct I think, I seem to remember they use carbon black for the colour?

Brent

[BJJ]

Until I hear anything better, then this is the go.  My long shot would be a service that moulds a new lead into the coil housing.  We all just chopp 5 mm back whenever anything bad happens.  I'm sure someone has come up with a solution??

[halo1963]

You have to use special silicon
high voltage silicon
Dow Corning 3145 RTV it is grey I think

They use this stuff on the anode leads of TV's
So when dry it will handle it no problems

Regards
Halo1963

[Doc]

thing is you need to put things into perspective billjackjane. Unless the coil is extremly rare and not easy to replace then wasting more than couple of hours on the sucker just ain't practicle if another can be had for about $50 (less for used, some a free if ya ask around!) Saves a lot of bother simply finding another sometimes and throwing the old one in the spare kit  this coming from a tin arse who doesn't like spending oodles but eh..I've seen the light in these instances 

[Tim754]

IS that the Doc we know!!!!! Yep Bill electrical is electrical , not much pleasure gained by skimping, fresh is best. But if possible do find the time to repair the other for the spare parts box.