New Holland 667TA/EEG Repair Manual page 129

STEP 135
BS06K365
If the valve seats cannot be reseated, just by
grinding, replace them with replacement parts. By
using tool (1, in step 134) to remove as much
material as possible from the valve seats (taking care
not to damage the cylinder head) until they can be
extracted from the cylinder head using a punch.
STEP 136
1
2
3
BS06K366
After the reconditioning operations, verify by means
of base (2) and dial indicator (1), that valve hollow (3)
corresponds to the specified value.
87519804 NA
ENGINE REPAIR MANUAL
CHAPTER 2 - 667TA ENGINE OVERHAUL
MAIN DATA ON VALVE SEATS
Figure 2-239
Issued 11-06 Bur
Heat the cylinder head to 80° to 100° C
(176° to 212° F) and using the proper beater, install
the new valve seats (previously cooled) into the
heated cylinder head.
Recondition the valve seats with tool (1 in step 134)
according to the values shown in figure 2-238 above.
Figure 2-238
2-111