Ford KA, KA2, KA3 (1996 - 2008) - Sparkplugs

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Fri 5 Jun 2009 20:22
Sparkplugs - lexi2010
Hello again

Need to replace spark plugs ka with old engine where they usually rust in

Bought AGFS 22CM1 Ford spark plugs are these the ones that rust in ?

Been told to get some Platinium ones instead that will last 30 000mls and advice please

Thankyou
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Fri 5 Jun 2009 21:23
Sparkplugs - Manatee
We owned a Ka for 7 years. When it was new I took the plugs out, covered the threads and the seat in copper grease, and put them back. For what it's worth, they never rusted in.
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Fri 5 Jun 2009 21:37
Sparkplugs - madf
Same experience as Manatee with son's Fiesta.

The original plugs were rusted solid.. Soaked in plus gas and left overnight and they moved OK. Then lots of copperease and no problems in next 4 years..

Edited by madf on 05/06/2009 at 21:38

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Fri 5 Jun 2009 23:43
Sparkplugs - DP
It's the tapered seats that corrode to the head rather than the threads themselves. Every time I've removed seized plugs from these engines, when you fold the tapered part in on itself and break the rust "seal" with the head, the threaded part will unscrew with no more than gentle hand pressure. It's a tricky and risky job though - prevention is better than cure as per Manatee and madf's posts above.
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Tue 9 Jun 2009 16:50
Sparkplugs - lexi2010
Just a quick update

The old ford sparkplugs came out without breaking!

There was hardly any rust/corrosion on them

*maybe a leaking rocker cover gasket helped ?*

There was lots of rust/corrosion around the sparkplugs.

Maybe ford have modified the sparkplugs to minimse rusting?

Thankyou all for advice.

ps

The plug gap was not checked do they come correctly gapped ?

Edited by lexi2010 on 09/06/2009 at 16:51

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Tue 9 Jun 2009 19:55
Sparkplugs - Dynamic Dave
The plug gap was not checked do they come correctly gapped ?


Generally, yes. If they're multi electrode plugs, then definitely not as you'll never get the gaps exact and the spark will always travel across the shortest gap.
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