- Check that the flatness of the cylinder head lower surface corresponds to the recommended values.

 

Measurement

 

Value

 

Validity

 

Engine cylinder head lower surface flatness (mm)

 

< 0.1

 

2.0 JTD 115 HP

1. If the lower surface flatness of the cylinder head is not within specified values, grind from the nominal head height and then fit a new gasket with the number of references determined as described below.

- The head may be levelled to 0.1 mm if starting from a gasket with zero references and using a new gasket with one reference.

- The head may be levelled to 0.1 mm if starting from a gasket with one reference and using a new gasket with two references.

Within limit conditions (head gasket with two references before levelling), the lower cylinder head surface cannot be levelled.

 

Measurement

 

Value

 

Validity

 

Cylinder head nominal height (mm)

 

107 ± 0.05

 

2.0 JTD 115 HP