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V750 IE
4.7.2.
CHECK
•
After checking scoring, use a centesimal comparator to
check for cylinder surface wear.
•
Measure inside cylinder diameter at three heights
(insert legend) by revolving centesimal comparator by
90ø
and
repeat
comparator must be previously zeroed on a ring gauge.
Key:
st
1.
1
measurement
nd
2.
2
measurement
rd
3.
3
measurement
4.
control dimension for selection
Cylinders selection ø
GRADE "D"
GRADE "E"
80,000 ÷ 80,010
80,010 ÷ 80,020
(3.1496 ÷ 3.1500)
(3.1500 ÷ 3.1504)
When fitting new units, cylinder categories "D-E-F" must be
paired with the corresponding pistons selected in categories
"D-E-F".
Assembly clearance between piston and cylinder: 0.050 ÷
0.070 mm (in 0.0020 ÷ 0.0027).
measurements;
Centesimal
GRADE "F"
80,020 ÷ 80,030
(3.1504 ÷ 3.1508)
ENGINE
4 - 61
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