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Pongo · #31 Unread post by **Pongo** » Tue Mar 28, 2006 1:36 pm

Probably best not to pull the spark plug leads while the motor is running, it can damage your ignition system.

camthepyro · Tue Mar 28, 2006 2:40 pm

Really? Huh, I was told to do that by a mechanic... I didn't think it would hurt anything that wasn't easily fixed, the wire is still firing, if I put it close to anything metal and grounded it sparks.

jmillheiser · Tue Mar 28, 2006 3:03 pm

not a good idea to hold a live spark plug wire. it may just ground out onto the engine, but you could possibly complete the circut with your body and become the ground yourself.

an ignition coil can generate some serious current and is enough to kill someone

Pongo · #34 Unread post by **Pongo** » Wed Mar 29, 2006 3:50 am

camthepyro wrote:Really? Huh, I was told to do that by a mechanic... I didn't think it would hurt anything that wasn't easily fixed, the wire is still firing, if I put it close to anything metal and grounded it sparks.

If your plug lead is disconnected and grounded, whilst engine is running, that's fine. If it's not grounded you run the risk of damaging your ignition coil.

camthepyro · Wed Mar 29, 2006 12:04 pm

I wish I had known that... I guess I'll make sure to ground it if I ever have to test it like that again.