The correct torque specification when installing ignition components is critical for optimal engine performance and longevity. Undertightening may lead to combustion gas leaks, resulting in reduced power and potential damage to the spark plug and cylinder head. Overtightening, conversely, can stress the spark plug housing, potentially causing thread damage, insulator cracking, and ultimately, engine misfires or even catastrophic failure.
Adhering to manufacturer-specified torque values ensures a proper seal between the spark plug and the cylinder head, facilitating efficient heat transfer and preventing compression loss. Consistent application of this torque, whether utilizing a torque wrench or employing established angular tightening methods, contributes to reliable engine operation and reduced maintenance requirements over time. This precision is often overlooked but plays a significant role in maximizing fuel economy and minimizing emissions.
