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How Do You Check The Health Of Your Coil Packs ?

Munkyb0y

By Munkyb0y,
in Engines & Forced Induction

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Munkyb0y Grand Master

Munkyb0y

Posted
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Where are you located ? I'll coat the ones that you think are giving you probs for free with polyester resin ! What have you lost ? If it works good ! If it dont them buy the ones you need ! Thats a hell of a saving if it works.

where do you get this polyester resin?

you reckon i cant remove the silicone and apply this stuff?

i still get a miss up high in the cooler night temps. i'm guessing gapping to 0.7 might fix this, but i'd rather keep 0.8mm gap if possible.

Adriano Grand Master

Adriano

Posted
Posted

I have a different way of checking the coils, unbolt the coils, but leave them plugged in, wiht the car idling, preferrably in a poorly lit area, lift each coil with pliers by the plug, and watchand listen to the spark, if you can lift them 2cm without cousing a missfire, and can hear the spark(which will be pretty loud)then the coil and its insulation is fine.

Stormchaser Enthusiast

Stormchaser

Posted
Posted
I have a different way of checking the coils, unbolt the coils, but leave them plugged in, wiht the car idling, preferrably in a poorly lit area, lift each coil with pliers by the plug, and watchand listen to the spark, if you can lift them 2cm without cousing a missfire, and can hear the spark(which will be pretty loud)then the coil and its insulation is fine.

Yeah im gonna give this a go tomorrow after work

Adriano Grand Master

Adriano

Posted
Posted (edited)
Adriano that sounds a little dangerous. Make sure the pliers are insulated but I wouldn't recommend this.

There is so much Voltage around this area! Could seriously hurt you

Dont see how you can get hurt, the spark will always jump to the head if you pull it too far, the only time i wouldnt recommend it is if you are running CDI. That and i ve never heard of anyone getting hurt by secondary voltages on a non CDI ignition system, just gives a but of a buzz.

Edited by Adriano
PLYNX Mentor

PLYNX

Posted
Posted (edited)

You can get polyester resin from Bunnings. Its the same resin(gelcoat) they use for fiberglassing. Just go to the fiberglass section and get a small tin, some acetone for clean up and a good idea is some thin rubber gloves. Clean the coils down with the acetone to get rid of the carbon deposits. As to the silicon thats gonna be a tough one as the polyester resin wont stick to it at all. You MUST get it all of for it to work. Mineral turps or even Xylol/Xylene and a lot of rubbing with a cloth is best and again finish off with acetone. You will also need some small paint brushes that are NOT synthetic bristles as the styrene monomer in the polyester resin will melt them. Mix up the gelcoat as per instructions on the tin( best to do it in parts as it starts to go off in about 15 mins). Take you brush and start to dab a thin layer all over the body of the coil leaving out the plug area and of coarse the area where the rubber insulator goes over. I gave mine two coats just to be sure. If youve added the catylist (hardener) at the right ratio the it should start to go off in about 15-20mins and be touch dry. Try and put them in the sun for about an hour and they will achieve full cure.

That about covers it.

Edited by PLYNX

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