Does anyone know what the spark plug gap should be for my 2005 Focus, which has done 32,000 miles.
The originals had 0.050" (approx 1.3mm) gaps.
The new ones are factory gapped at 0.047" (approx 1.2mm).
Both are Ford AYFS22CB
I can only find information on the Mk1 Focus 1.6 which seems to be 1.3mm and use AYFS22C plugs.
The Ford ones appear very similar to NGK's, their recommended replacement being TR5A -10 gapped at 1.0 mm (for all 1.6 models)
The new ones are running well and have cured the hesitant idling problem recently experianced.
I'm confused! many thanks for your help.
Edited by Dynamic Dave on 06/11/2007 at 18:45
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