- After measuring the valve
guide diameter and the valve
stem diameter, check the
clearance between guide and
stem.
Intake:
Standard clearance:
0.013
~
0.04 mm
Admissible limit: 0.08
mm
Exhaust:
Standard clearance:
0.025
~
0.052 mm
Admissible limit: 0.09
mm
- Check that the contact
surface with the articulated
register terminal is free from
wear.
Standard valve length
Intake: 9
4
.
7~95.3
mm
Exhaust: 9
3
.
9
~94.5
mm
- If the checks above give no
failures, you can use the same
valves. To obtain better
sealing performance, grind the
valve seats. Perform this
operation carefully using fine
grain emery paste. While
grinding, keep the head with
the valve axes in horizontal
position to prevent the emery
paste residues from
penetrating into the valve
guide stem coupling (see
figure).
Warning:
To prevent scratching the contact surface, do not force the valve rotation when
the emery paste finishes. Carefully clean the head and the valves using a suitable product
for the type of emery paste used.
N.B.:
Do not change the valve assembly position.
PGO BR-500 ENGINE
P.10-84
Thermal Unit & timing system
Содержание BR-500
Страница 1: ......
Страница 2: ...INDEX OF TOPICS TIME CHART 12 ...
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Страница 14: ...INDEX OF TOPICS PRIOR TO DELIVERY 11 ...
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Страница 16: ......
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Страница 33: ...PGO BR 500 ENGINE P 10 14 Automatic Transmission ...
Страница 59: ...PGO BR 500 ENGINE P 10 40 Flywheel Cover ...
Страница 61: ... Check that the blow by circuit reed closes properly PGO BR 500 ENGINE P 10 42 Flywheel Cover ...
Страница 65: ...PGO BR 500 ENGINE P 10 46 Flywheel Cover ...
Страница 67: ...PGO BR 500 ENGINE P 10 48 Flywheel Cover ...
Страница 240: ...INDEX OF TOPICS BRAKING SYSTEM 8 ...
Страница 245: ...INDEX OF TOPICS STEERING WHEEL AND SUSPENSIONS 7 ...
Страница 250: ...INDEX OF TOPICS VEHICLE ENGINE 6 ...
Страница 253: ...INDEX OF TOPICS VEHICLE ENGINE 6 ...
Страница 257: ...Transmission Gear box explosive diagram P 6 5 ...
Страница 258: ...P 6 6 ...
Страница 259: ...INDEX OF TOPICS ELECTRIC SYSTEM 5 ...
Страница 272: ...PGO BR 500 ENGINE P 5 14 ...
Страница 273: ...INDEX OF TOPICS COOLING SYSTEM 4 ...
Страница 281: ...INDEX OF TOPICS MAINTENANCE 3 ...
Страница 303: ...INDEX OF TOPICS OPERATION 2 ...
Страница 318: ...INDEX OF TOPICS CHARACTERISTICS 1 ...