Spark Plug, terminal cap?

[itavaltalainen]

should unscrew, they did on some other ngk plugs i bought a while ago...

[boneybradley]

should unscrew, they did on some other ngk plugs i bought a while ago...

not any more, I have 12 in stock and it's even printed on the box they are fixed!!

[tweed]

I guess they got to many complaints about them coming loose so they fixed them on.

I always had to tighten them up for karting (ngk)

[VW BUSH]

I guess they got to many complaints about them coming loose so they fixed them on.

I always had to tighten them up for karting (ngk)

I squeeze the ali ferule between crimping pliers when screwed up, they stay tight then

[tweed]

I guess they got to many complaints about them coming loose so they fixed them on.

I always had to tighten them up for karting (ngk)

I squeeze the ali ferule between crimping pliers when screwed up, they stay tight then

Yep works a treat