New Holland 667TA/EBF, Repair Manual

Page: 102 / 150

2-84
Issued 11-06 Bur 87519804 NA
CHAPTER 2 - 667TA ENGINE OVERHAUL
ENGINE REPAIR MANUAL
STEP 49
BS06K269 Figure 2-142
CYLINDER BORE DIMENSIONS AND SPECIFICATIONS
IMPORTANT: In case of reconditioning all the bores
must be machined to the standard increments of over
sized bores 0.5mm (0.02in.).
Check the main bearing seats as follows:
•
Install the bed caps on the supports without
bearing.
•
Tighten the fastening bolts to the specified torque.
•
Check with a internal comparator, that the seat
diameter is the same as the specified value.
I f a va l u e i s fo u n d o u t o f t o l e r a n c e r e p l a c e
crankcase.
CHECKING THE CRANKCASE CYLINDER HEAD
MATING SURFACE
STEP 50
BS06K270 Figure 2-143
Verify that the crankcase cylinder head mating
surface does not show any warping. This check can
be accomplished by taking out dowels (4), with a
straight edge (2) and a thickness gauge (3). If there
are any deformed areas, resurface the block. The
warpage must not be greater than 0.075mm
(0.0030 in.).
IMPORTANT: When the repair work has been
completed, check that the protrusion of the piston
from the bore is not greater than the specified value.
After flattening, restore the bore countersink, as
shown on page 2-84.
4
2
3
1