Question

how even should the cranking compression be between the lowest and highest cylinder readings on an engine without mechanical problems?
select one:
o a. within 0% to 5%
o b. within 10% to 15%
o c. within 20% to 25%
o d. within 30% to 35%

Explanation:

In an engine without mechanical problems, the cranking compression should be relatively consistent. A range of 10% - 15% difference between the lowest and highest cylinder readings is considered acceptable. Values too low (like 0% - 5%) might be overly strict in real - world scenarios with minor manufacturing tolerances, and values higher (20% - 25% or 30% - 35%) would indicate potential issues.

Answer:

b. Within 10% to 15%