Kohler KDI 1903 TCR

EN
178
mm;
+1 for a piston with an increased diameter of 1.00 mm;
If clearance between cylinder and piston is greater than 0,074
mm, the piston and seal rings must be replaced.
Important

Tab. 8.1b details the dimensional values of new
components only.
Tab. 8.1b
PISTON
Ø
CYLINDERS
(± 0.007 mm)
Ø PISTON
(± 0.007
mm)
CLEARANCE
VALUE
(mm)
STD
88.010
87.950
0.046 + 0.074
+0.20
88.210
88.150
+0.50
88.510
88.450
+1.00
89.010
88.950
Fig 8.17
Important

With a feeler gauge, measure the clearance of the seal
ring in the respective seat (value L1, L2 e L3 ).

If the clearance does not comply with the values shown in
the Tab. 8.8 , replace the seal rings and the piston.
Tab 8.8
SEAL RINGS
CLEARANCE VALUE (mm)
U1 (L1)
0.110 - 0.150
U2 (L2)
0.070 - 0.115
U3 (L3)
0.030 - 0.065
Fig 8.18 e 8.19