Spark plug Extenders?

Mick Jagger · Post by **Mick Jagger** » Fri Oct 16, 2009 7:15 pm

why do I have them ,spark plug into (extender) thing, then into head

Post by **Blacky** » Sat Oct 17, 2009 9:08 am

need a pic.

Mick Jagger · Post by **Mick Jagger** » Sat Oct 17, 2009 1:02 pm

Heres a pic,I can put the plug in without these as it doesnt hit ,however I dont know why it had them,maybe to drop the compression?

FB MAD · Post by **FB MAD** » Sat Oct 17, 2009 3:13 pm

I've seen them before, years ago, to enable the fitment of long thread plugs in a short thread head.It kept the plug away from hitting the piston top on engine rotation and therefore stopping damage to the engine.

Not real sure why they have been fitted to your engine

as those plugs are short thread plugs

.

There was a bloke selling a similar plug extender ( in restored cars mag I think ) that had the piston end of the extender blocked off and a number of small holes drilled in that end.It was claimed to stop spark plugs oiling up in a high mileage engine.

Post by **Blacky** » Sat Oct 17, 2009 7:39 pm

I think what FB MAD is trying to say is - chuck 'em as far as you can.

Mick Jagger · Post by **Mick Jagger** » Sat Oct 17, 2009 8:53 pm

put new plugs in today minus the bullshit and it ran fine