Spark plug gap... - Page 2

Letyian · Jul 10th, 2007, 15:35

Quote:

Originally Posted by malb

There is a very little bit of wisdom in the wiggle test if it is carried out near the plug end of the lead. Slight wiggle can interupt the contact to the plug and force a spark within the lead boot, as well as the one in the cylinder. In doing so, a "hotter" spark arrives at the plug. If the wiggler can detect a variation in the engine while doing this, then it is probable that the plug gap is a bit wide, and needs a 'hotter" spark than is availble. Closing the gap slightly should provide a better optimised spark from the available pulse.

That makes sense, but with the engine turned off??

niloc · Jul 10th, 2007, 16:15

Quote:

Originally Posted by malb

Slight wiggle can interupt the contact to the plug and force a spark within the lead boot, as well as the one in the cylinder. In doing so, a "hotter" spark arrives at the plug.

If the "slight wiggle" test actually works, it indicates that the plug lead is not making good contact with the end of the plug, and should be sorted...
(pull boot back up cable if poss, then close the contact slightly)(if it's a moulded-on-to-the-cable boot, you can still do it by squeezing the boot in the right place with pliers(use a torch to see which way round the contact is first))

Quote:

Originally Posted by Letyian

That makes sense, but with the engine turned off??

Ha ha ha! ROFL

The mentality of some people never ceases to amaze me....

Alec Dawe · Jul 10th, 2007, 16:28

Quote:

Originally Posted by Letyian

That makes sense, but with the engine turned off??

This isn't meant to sound rude or sexist, but have you tried squeezing your neighbour??
I suspect that you'll find he's full of prune juice!

About the only thing you'll find with the engine off is if the lead is still attached both ends!

niloc · Jul 10th, 2007, 17:06

Quote:

Originally Posted by Alec Dawe

About the only thing you'll find with the engine off is if the lead is still attached both ends!

Aah, but he has the "magic fingers"

Letyian · Jul 10th, 2007, 20:42

Shucks you guys! You make me giggle! Haven't seen him today, but he's sitting with me while I drive to Lichfield to pick up the new spark plugs tomorrow! Ho hum!

Jul 10th, 2007, 20:42	#15
Letyian Member Last Online: Apr 10th, 2008 15:36 Join Date: Jun 2007 Location: Stourbridge View Photos By: Letyian	Shucks you guys! You make me giggle! Haven't seen him today, but he's sitting with me while I drive to Lichfield to pick up the new spark plugs tomorrow! Ho hum! __________________ Don't play stupid with me - I'm better at it! You are only young once, but you can stay immature indefinitely.

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