06:28 Dec 13, 2011
Here I am not saying that blast is different, I am saying about followed pratice, you may have seen a plug cleaning machine, that uses sand with air, but here in the given context there is no mention of air at all. Then one more logical question, why forced air blasting is not recommended? Spark Plug is a very rough and tough part, which is exposed to thousands of degree temp. in combustion chamber, it is not a delicate part. Now why not sand blasting, this needs to be verified. First reason, possibility of sanding of electrodes, which may reduce sharpness of its edges, which may reduce the spark quality. Apart from this ingress of sand through spark plug inside the engine may have abrasive effect. Of course you also look at google for any other reason. I too will know something latest. I am unable to search at the moment, but shall try to be more informed. regards, Arun |