Kohler KDI 1903 TCR

179
EN
8.6 Cylinder head
8.6.1 Flatness check
Put the cylinder head on a surface plate and, with a dial gauge,
check the flatness of surface C .
The MAX value of allowable irregularity of surface C is 0.10mm.
If the value is not observed, you are required to grind surface C .
The MAX removal allowed is 0.20 mm.
Important

Grinding is to be performed with sleeves A of the
electronic injectors assembled.

Grinding is prohibited on all engines provided with an
EPA name plate (refer to Par. 1.3 ).
Fig 8.20a - Fig 8.20b
8.6.2 Valve seats check
Measure indentation
B
of each valve with regard to the cylinder
head surface
C
, which is to be a
MIN
of 0.60 mm and
MAX
of
0.85 mm.
The
B MAX
indentation allowed on worn components is 1.10
mm.
If the measured value does not correspond with the values
indicated, replace the worn component.
Important

The seats must be worked after driving to reach value B ,
go to a rectification workshop for such operations.
8.6.3 Valve springs
Using a dynamometer, subject the spring to two different forces
(in Tab. 8.9) and check that the length of the spring corresponds
to the values indicated in the table.
(*1)
The code
ED0057551850-S
is installed from
S/N 4418801760
Tab 8.9
WEIGHT (kg)
LENGHT (mm)
ED0057552810-S
ED0057551850-S
(*1)
Fig 8.21
Fig 8.22