CYLINDER BLOCK
EM-135
[VG33E and VG33ER]
C
D
E
F
G
H
I
J
K
L
M
A
EM
Amount of cylinder head resurfacing is “A”.
Amount of cylinder block resurfacing is “B”.
If necessary, replace the cylinder block.
PISTON-TO-BORE CLEARANCE
1.
Using a bore gauge, measure the cylinder bore for out-of-round,
taper, standard inner diameter, and wear.
If the measurements exceed specifications hone all of the cylin-
der bores. Replace the cylinder block if necessary. Refer to
EM-
149, "Cylinder Block"
.
2.
Check for scratches and seizure. If scratches and seizure is
found, hone the cylinder bores and replace the pistons.
●
If both the cylinder block and pistons are replaced with new
ones, select the piston of the same grade number according
to the following table. These numbers are punched on cylin-
der block and piston in either Arabic or Roman numerals.
Refer to
EM-150, "AVAILABLE PISTON"
.
Combination Grade Number For Cylinder Bore and Piston
Maximum resurfacing limit
: A + B = 0.2 mm (0.008 in)
Nominal cylinder block height from crankshaft center
: 227.60 - 227.70 mm
(8.9606 - 8.9645 in)
Out-of-round (difference
between X and Y) standard
: 0.015 mm (0.0006 in)
Taper (difference between A
and C) standard
: 0.015 mm (0.0006 in)
SEM321AA
SEM320A
SEM557AA
For No. 3, 4 and 5 cylinders
Except for No. 1, 2
and 6 cylinders
Cylinder bore
grade No.
1
2
3
4
5
6
1
2
3
Piston grade No.
2-1
3-2
3-3
4-4
4-5
5-6
1
2
3
WEM098