Mechanical Engineering - Automobile Engineering - Discussion
Discussion Forum : Automobile Engineering - Section 2 (Q.No. 17)
17.
If the spark plug deposit indicates black coating of soot, it indicates that the engine has been generally operating on
Discussion:
1 comments Page 1 of 1.
Upendra said:
9 years ago
When in the ratio of air fuel mixture fuel is more in comparison air that called rich mixture so it did not properly burn so black coating deposit.
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