Cylinder Head: Inspection

Before cleaning, check for leaks, damage and cracks.
Clean cylinder head and oil passages.
Check cylinder head for flatness (Fig 1).

Fig 1: Checking Cylinder Head Flatness
Courtesy of DAIMLERCHRYSLER CORP.
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.
CAUTION: 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.