Iridium Spark Plugs

[jhg1958]

Wow so much about the humble spark plug but I suppose it is a part close to all our hearts and toolbox.

They are key to engine performance and any leakage of the HT current will cause problems. Cleaning old plugs will help to remove material that fouls the plug but probably not to a point where they will be as new.  Wire brushing is the most basic type of cleaning although not very good.

I was looking for spark plug cleaning equipment and found this, so our problems are as old as the combustion engine.

Thanks for the info about iridium plugs. I am about to change the plugs on my Honda Deauville and the spark plugs are a bitch to replace so I will buy a couple and forget them for a few years. Not expecting better performance but easier maintenance.

I will keep my wire brush for now. I have had fouled plugs on trips and pleased to have my little brush with me (and a couple of spares).

John

[chaterlea25]

Hi All,
Way back in the sixties and early seventies my Father was still using a TVO Ferguson 20.
The older plugs I remember could be dismantled and cleaned then came the crimped type N21 champions.
I soon became a dab hand at firing up the parrafin blowlamp to burn the plugs clean

John

[Rex]

The old pink Lodges were the dismantable ones as I recall.

[Joolstacho]

I've still got a few from my ol' Fordson Major somewhere.

[Black Sheep]

The front plugs on a Deauville are an interesting exercise to change. I would go with the original Denso plugs. Good for at least 20,000 miles.