Operation CHARM: Car repair manuals for everyone.

Cylinder Head Inspection






Cylinder Head Inspection

Checking Cylinder Head Flatness






- Before cleaning, check for leaks, damage and cracks.

- Clean cylinder head and oil passages. Refer to => [ Cylinder Head Cleaning ] Procedures.

- Using and straight edge and feeler gauge, check the cylinder head for flatness.

- The cylinder head must be flat within:

Standard dimension = less than 0.05 mm (0.002 inch).

Service limit = 0.2 mm (0.008 inch).

Grinding limit = Maximum of 0.2 mm (0.008 inch) is permitted.


0.20 mm (0.008 in.) MAX is a combined total dimension of the stock removal limit from cylinder head and block top surface (deck) together.