Gapping twin-electrode spark plugs

[TankRizzo]

Chaps,

Quick one - I recently changed the plugs on the VX due to water ingress knackering the last lot. Got some new NGKs from Halfrauds which are supposedly correct for the Z20LET, and now it idles poorly. Drives fine but the idle is all over the shop really. The sparks are NGK-R twin-electrode jobbies. Checking the gap last night, looks like they're set at 0.45mm or thereabouts when the VX needs a gap of 0.7mm.

Now, I've gapped single-electrode sparks before but I'm a little hesitant about the twins, as in what happens if the gap is not exactly the same on both?

If I can't manage it I'll probably return them and go for some Iridiums like last time.

[minimatt1967]

all twin electrode plugs are pre gapped, and NGK don't offer the gaps in there catalogue neither do Champion. You could have a faulty plug.. Wouldn't be the first time won't be the last time!

[TankRizzo]

minimatt1967 said:

all twin electrode plugs are pre gapped, and NGK don't offer the gaps in there catalogue neither do Champion. You could have a faulty plug.. Wouldn't be the first time won't be the last time!

Cheers buddy. I think I'll go get me money back and get some Irids, then.

[minimatt1967]

Sounds like a plan, might even be worth giving NGK a ring before you purchase, especially if you've done any mods, take the monkey out the middle. Let us know what part number they suggest I might even be able to get you them a little cheaper

[TankRizzo]

minimatt1967 said:

Sounds like a plan, might even be worth giving NGK a ring before you purchase, especially if you've done any mods, take the monkey out the middle. Let us know what part number they suggest I might even be able to get you them a little cheaper

Hi Matt, sorry to dig this up but I've got the part number from NGK for the Iridium IX plug: BKR6EIX. I don't know if that's any good to you?

Vaughan

[minimatt1967]

I left a note on fb for you.