Installed new Spark Plugs (pics)
- Thread starter Robb.
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That video is dumb.. the tip is smaller on the iridium so it wont move as much as the wider copper tip.
Copper is still better.
Copper is still better.
watch at 3:35
http://www.youtube.com/watch?v=pd0QDFFqPcc
Oil isnt there on mine, so the orings should be good !
http://www.youtube.com/watch?v=pd0QDFFqPcc
Oil isnt there on mine, so the orings should be good !
Originally Posted By: Robb.
That video is dumb.. the tip is smaller on the iridium so it wont move as much as the wider copper tip.
Copper is still better.
Come on, I can't believe you still say "copper" after you were told many times in this thread that it's nickel alloy! Do you even read others' posts?
Video isn't useful because those plugs are running in air. You need a cylinder with a glass window and with proper air - fuel mixture and a slow-motion camera to see how it actually ignites the mixture. Even better, you can test it on a dynamometer to measure horsepower and fuel efficiency. The critical aspect is how well a spark plug prevents quenching of the initial fireball.
That video is dumb.. the tip is smaller on the iridium so it wont move as much as the wider copper tip.
Copper is still better.
Come on, I can't believe you still say "copper" after you were told many times in this thread that it's nickel alloy! Do you even read others' posts?
Video isn't useful because those plugs are running in air. You need a cylinder with a glass window and with proper air - fuel mixture and a slow-motion camera to see how it actually ignites the mixture. Even better, you can test it on a dynamometer to measure horsepower and fuel efficiency. The critical aspect is how well a spark plug prevents quenching of the initial fireball.
Oil on the plug where? The insulator or the tip?
And the distributor? If that o-ring is leaking, the oil will leak out of the engine into the distributor and eventually to the outside of the cap. Are you suggesting that oil is leaking from the distributor into the spark plug well and/or onto the tip?
Originally Posted By: Robb.
Hi 20,000 kilometers, not miles !
valve cover and spark plug gaskets replaced a few years ago.
Its only 1 plug with oil on it.. could it be the o ring seal on the distributor ?
or o rings on head see link
And the distributor? If that o-ring is leaking, the oil will leak out of the engine into the distributor and eventually to the outside of the cap. Are you suggesting that oil is leaking from the distributor into the spark plug well and/or onto the tip?
Originally Posted By: Robb.
Hi 20,000 kilometers, not miles !
valve cover and spark plug gaskets replaced a few years ago.
Its only 1 plug with oil on it.. could it be the o ring seal on the distributor ?
or o rings on head see link
The video is dumb?
Originally Posted By: Robb.
That video is dumb.. the tip is smaller on the iridium so it wont move as much as the wider copper tip.
Copper is still better.
Originally Posted By: Robb.
That video is dumb.. the tip is smaller on the iridium so it wont move as much as the wider copper tip.
Copper is still better.
This video isn't as slow as one might like but it is interesting:
Originally Posted By: Gokhan
Video isn't useful because those plugs are running in air. You need a cylinder with a glass window and with proper air - fuel mixture and a slow-motion camera to see how it actually ignites the mixture. Even better, you can test it on a dynamometer to measure horsepower and fuel efficiency. The critical aspect is how well a spark plug prevents quenching of the initial fireball.
Originally Posted By: Gokhan
Video isn't useful because those plugs are running in air. You need a cylinder with a glass window and with proper air - fuel mixture and a slow-motion camera to see how it actually ignites the mixture. Even better, you can test it on a dynamometer to measure horsepower and fuel efficiency. The critical aspect is how well a spark plug prevents quenching of the initial fireball.
Copper what
Originally Posted By: Robb.
That video is dumb.. the tip is smaller on the iridium so it wont move as much as the wider copper tip.
Copper is still better.
Originally Posted By: Robb.
That video is dumb.. the tip is smaller on the iridium so it wont move as much as the wider copper tip.
Copper is still better.
Thanks for the nice video.
They are all copper inside, just the electrode is different.
Copper plugs use zinc steel as the electrode, platinum and iridium use platinum and iridium. The resistance is so minimal that it is the gap size and electrode diameter / sharpness that determine the firing voltages and not the resistance of the material.
The benefit of precious metal plugs is the smaller diameter and longer life. The only benefit of a "copper" plugs is if it is an OEM design that matches the original design, thus reduce the chance of wrong applications.
Copper plugs use zinc steel as the electrode, platinum and iridium use platinum and iridium. The resistance is so minimal that it is the gap size and electrode diameter / sharpness that determine the firing voltages and not the resistance of the material.
The benefit of precious metal plugs is the smaller diameter and longer life. The only benefit of a "copper" plugs is if it is an OEM design that matches the original design, thus reduce the chance of wrong applications.
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