* The make and model of the vehicle: Different manufacturers and even different engines within the same manufacturer use different bolts and specifications.
* The size and type of the bolt: The bolt's diameter, thread pitch, and material all affect the proper torque.
* The material of the valve cover: Aluminum valve covers require less torque than cast iron ones.
To find the correct torque specification, you MUST consult your vehicle's repair manual or a reputable online database like Mitchell 1 or Alldata. These resources will provide the precise torque value for your specific engine.
Attempting to guess the torque can lead to:
* Stripped threads: Over-tightening can damage the threads in the valve cover or cylinder head.
* A leaky gasket: Under-tightening will not properly seal the gasket, leading to oil leaks.
* Broken bolts: Excessive torque can snap the bolts.
Always prioritize finding the correct specification before working on your engine.
