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Help on Spark Plugs

2K views 6 replies 4 participants last post by  Roel 
#1 ·
i currently have a Alfa Romeo 146 1.6 TS and cannot find anywhere the spark plug gap size for the plugs in the car, can anyone help out there please.
 
#2 ·
The factory gap on a lot of spark plugs are set to accomodate all kinds of engines. Around 0.7 to 0.9 mm is common. The spark gap is not holy writ though. I'd set the gap to 0.9mm and go from there. With electronic ignition (like you have) with plenty of oomph, going higher than the factory gap should be no problem.

Up to a point, a bigger gap means a bigger spark.

So, my answer is 0.9mm ;)
 
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