Inspecting the piston
- Measure the diameter of the wrist pin seat on the
piston.
- Calculate the piston pin coupling clearance.
- Measure the outside diameter of the piston, per-
pendicular to the gudgeon pin axis.
- Take the measurement at 5 mm from the base in
the position shown in the figure.
- Carefully clean the seal housings.
- Measure the coupling clearance between the
seal rings and the grooves using suitable sensors,
as shown in the diagram.
- If the clearance is greater than that indicated in
the table, replace the piston.
N.B.
MEASURE THE CLEARANCE BY INSERTING
THE BLADE OF THE FEELER GAUGE FROM
THE SECOND SEAL SIDE.
N.B.
THE PIN HOUSINGS HAVE 2 LUBRICATION
CHANNELS. FOR THIS REASON MEASURE-
MENT OF THE DIAMETER MUST BE CARRIED
OUT ACCORDING TO THE AXIS OF THE PIS-
TON.
Characteristic
Wrist pin seat on the piston: Standard diameter
15.001 ÷ 15.006 mm
Diameter of the wrist pin seat on the piston:
Standard clearance
0.001 ÷ 0.010 mm
piston diameter
71.953 - 71.981 mm
Fitting clearance
Top piston ring - standard coupling clearance
0.015 - 0.06 mm
Top piston ring - maximum
clearance allowed after use
0.07 mm
Middle
piston ring - standard coupling clearance
0.015
- 0.06 mm
Middle piston ring - maximum clear-
ance allowed after use
0.07 mm
oil scraper ring
- standard coupling clearance
0.015 - 0.06 mm
oil scraper ring - maximum clearance allowed
after use
0.07 mm
Engine
Vespa GTS 250 I.E.
ENG - 34
Содержание Vespa GTS 250
Страница 4: ...4 ...
Страница 6: ...Warnings 78 PROGRAMMED MAINTENANCE 81 Scheduled maintenance table 82 6 ...
Страница 7: ...Vespa GTS 250 Chap 01 Vehicle 7 ...
Страница 9: ...01_02 9 1 Vehicle ...
Страница 23: ...23 1 Vehicle ...
Страница 24: ...24 1 Vehicle ...
Страница 25: ...Vespa GTS 250 Chap 02 Use 25 ...
Страница 28: ...02_02 28 2 Use ...
Страница 38: ...38 2 Use ...
Страница 39: ...Vespa GTS 250 Chap 03 Maintenance 39 ...
Страница 57: ...Protected circuits Front and rear side lights dashboard lighting 03_20 03_21 57 3 Maintenance ...
Страница 58: ...03_22 03_23 03_24 58 3 Maintenance ...
Страница 70: ...70 3 Maintenance ...
Страница 71: ...Vespa GTS 250 Chap 04 Technical data 71 ...
Страница 75: ...04_01 75 4 Technical data ...
Страница 77: ...Vespa GTS 250 Chap 05 Spare parts and accessories 77 ...
Страница 80: ...80 5 Spare parts and accessories ...
Страница 81: ...Vespa GTS 250 Chap 06 Programmed maintenance 81 ...
Страница 87: ...WORKSHOP MANUAL 633577 Vespa GTS 250 I E ...
Страница 90: ......
Страница 92: ......
Страница 93: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Страница 105: ...INDEX OF TOPICS TOOLING TOOL ...
Страница 118: ...Tooling Vespa GTS 250 I E TOOL 14 ...
Страница 119: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Страница 133: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Страница 137: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Страница 142: ...Front side 1 Saddle opening switch 2 Wirings Electrical system Vespa GTS 250 I E ELE SYS 6 ...
Страница 176: ... Refit the battery cover Connectors Electrical system Vespa GTS 250 I E ELE SYS 40 ...
Страница 177: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Страница 184: ...Engine from vehicle Vespa GTS 250 I E ENG VE 8 ...
Страница 185: ...INDEX OF TOPICS ENGINE ENG ...
Страница 242: ...Engine Vespa GTS 250 I E ENG 58 ...
Страница 250: ...Engine Vespa GTS 250 I E ENG 66 ...
Страница 251: ...INDEX OF TOPICS INJECTION INJEC ...
Страница 254: ...Injection Vespa GTS 250 I E INJEC 4 ...
Страница 270: ... REMOTE CONTROLS CONTROL UNIT FUSES ETC Injection Vespa GTS 250 I E INJEC 20 ...
Страница 284: ...Components location Injection Vespa GTS 250 I E INJEC 34 ...
Страница 290: ...Injection Vespa GTS 250 I E INJEC 40 ...
Страница 301: ...Schema valido dal numero di telaio ZAPM4510000001579 in poi Vespa GTS 250 I E Injection INJEC 51 ...
Страница 304: ...Injection Vespa GTS 250 I E INJEC 54 ...
Страница 305: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Страница 326: ...Suspensions Vespa GTS 250 I E SUSP 22 ...
Страница 327: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Страница 343: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Страница 346: ...Cooling system Vespa GTS 250 I E COOL SYS 4 ...
Страница 347: ...INDEX OF TOPICS CHASSIS CHAS ...
Страница 359: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Страница 363: ...INDEX OF TOPICS TIME TIME ...
Страница 365: ...Crankshaft CRANKSHAFT Code Action Duration 1 001117 Crankshaft Replacement Vespa GTS 250 I E Time TIME 3 ...
Страница 403: ...Stickers TRANSFERS Code Action Duration 1 004159 Plates Stickers Replace ment Vespa GTS 250 I E Time TIME 41 ...
Страница 408: ... ...
Страница 409: ... ZAPM45100 2 ...
Страница 410: ... ZAPM45100 3 ...
Страница 411: ... 0 1 2 34 0 2 5 6 2 5 3780 9 65 5 3 0 5 2 3 8 5 1 8 0 2 1 5 ZAPM45100 4 ...
Страница 412: ... ZAPM45100 5 ...
Страница 424: ... 1 5 7 5 2 5 2 2 5 2 6 2 6 2 A 4 5 A 5 6 52 6 2 3 5 A 5 8 5 A 1 6 ZAPM45100 17 ...
Страница 425: ... 5 A 6 5 A 5 5 1 6 5 6 7 2 2 5 25 2 52 5 1 2 1 2 A 5 2 5 4 6 2 6 2 ZAPM45100 18 ...
Страница 426: ... 5 22 B 2 5 5 4 5 2 5 5 0 5 2 0 7 5 2 5 2 1 A 52 2 6 2 5 4 25 A 5 6 5 2 ZAPM45100 19 ...
Страница 427: ... 3 A 5 5 8 C 6 1 6 16 5 2 6 1 5 A 5 16 5 2 7 5 5 55 5 4 5 A 1 55 50 ZAPM45100 20 ...
Страница 428: ... 3 8 6 2 2 1 2 7 5 A 5 1 7 2 5 2 7 7 5 2 5 1 1 5 ZAPM45100 21 ...
Страница 429: ... 5 0 2 5 1 26 2 5 1 5 1 6 2 5 6 50 5 2 4 5 5 5 5 4 2 5 2 6 622 4 5 2 65 1 ZAPM45100 22 ...
Страница 430: ... 4 7 5 65 1 4 2 25 2 22 5 5 4 2 1 16 2 5 25 25 2 6 4 4 5 ZAPM45100 23 ...
Страница 431: ... 5 2 D 2 65 5 1 2 ZAPM45100 1 24 ...
Страница 432: ... 5 2 D 2 65 5 1 2 0 5 ZAPM45100 25 ...
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Страница 435: ... 5 2 D 2 65 5 1 2 ZAPM45100 5 2 2 5 2 6 2 28 ...
Страница 436: ... 5 2 D 2 65 5 1 2 0 6 2 A ZAPM45100 29 ...
Страница 437: ... 5 2 D 2 65 5 1 2 ZAPM45100 6 2 A 30 ...
Страница 438: ... 5 2 D 2 65 5 1 2 0 0 4 5 A 5 6 52 6 2 ZAPM45100 31 ...
Страница 439: ... 5 2 D 2 65 5 1 2 ZAPM45100 4 5 A 5 6 52 6 2 32 ...
Страница 440: ... 5 2 D 2 65 5 1 2 3 5 A 5 ZAPM45100 33 ...
Страница 441: ... 5 2 D 2 65 5 1 2 ZAPM45100 8 5 A 1 6 34 ...
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Страница 443: ... 5 2 D 2 65 5 1 2 ZAPM45100 5 A 6 36 ...
Страница 444: ... 5 2 D 2 65 5 1 2 5 A 5 5 1 ZAPM45100 37 ...
Страница 445: ... 5 2 D 2 65 5 1 2 0 0 0 0 ZAPM45100 6 38 ...
Страница 446: ... 5 2 D 2 65 5 1 2 0 0 6 ZAPM45100 39 ...
Страница 447: ... 5 2 D 2 65 5 1 2 2 ZAPM45100 5 6 40 ...
Страница 448: ... 5 2 D 2 65 5 1 2 5 6 ZAPM45100 41 ...
Страница 449: ... 5 2 D 2 65 5 1 2 0 0 ZAPM45100 7 2 2 5 25 2 52 5 42 ...
Страница 450: ... 5 2 D 2 65 5 1 2 0 0 1 2 ZAPM45100 43 ...
Страница 451: ... 5 2 D 2 65 5 1 2 3 0 0 ZAPM45100 1 2 A 5 2 5 44 ...
Страница 452: ... 5 2 D 2 65 5 1 2 0 4 6 2 6 2 ZAPM45100 45 ...
Страница 453: ... 5 2 D 2 65 5 1 2 ZAPM45100 5 22 B 2 5 46 ...
Страница 454: ... 5 2 D 2 65 5 1 2 4 5 2 5 ZAPM45100 47 ...
Страница 455: ... 5 2 D 2 65 5 1 2 ZAPM45100 4 5 2 5 48 ...
Страница 456: ... 5 2 D 2 65 5 1 2 4 5 2 5 ZAPM45100 49 ...
Страница 457: ... 5 2 D 2 65 5 1 2 678 9 678 99 678 69 6 678 678 9 678 0 9 0 678 0 9 0 678 0 9 0 678 0 9 0 ZAPM45100 5 0 5 50 ...
Страница 458: ... 5 2 D 2 65 5 1 2 5 0 5 ZAPM45100 51 ...
Страница 459: ... 5 2 D 2 65 5 1 2 1 ZAPM45100 2 0 52 ...
Страница 461: ... 5 2 D 2 65 5 1 2 678 0 9 0 ZAPM45100 7 5 2 54 ...
Страница 464: ... 5 2 D 2 65 5 1 2 678 99 678 69 678 6 678 678 9 678 0 9 678 0 9 5 2 1 A 52 2 6 2 5 ZAPM45100 57 ...
Страница 465: ... 5 2 D 2 65 5 1 2 678 9 678 99 678 69 6 678 6 6 678 678 0 9 0 678 0 9 0 ZAPM45100 4 25 A 5 6 5 2 58 ...
Страница 466: ... 5 2 D 2 65 5 1 2 4 25 A 5 6 5 2 ZAPM45100 59 ...
Страница 469: ... 5 2 D 2 65 5 1 2 678 9 678 99 678 69 6 678 6 6 678 678 9 678 0 9 0 678 0 9 0 ZAPM45100 8 C 6 1 6 16 5 62 ...
Страница 470: ... 5 2 D 2 65 5 1 2 8 C 6 1 6 16 5 ZAPM45100 63 ...
Страница 471: ... 5 2 D 2 65 5 1 2 ZAPM45100 2 6 1 64 ...
Страница 472: ... 5 2 D 2 65 5 1 2 678 9 678 99 678 69 6 678 678 9 678 0 9 0 678 0 9 0 5 4 5 5 A 5 16 5 ZAPM45100 65 ...
Страница 473: ... 5 2 D 2 65 5 1 2 5 ZAPM45100 5 A 5 16 5 66 ...
Страница 474: ... 5 2 D 2 65 5 1 2 2 ZAPM45100 67 ...
Страница 475: ... 5 2 D 2 65 5 1 2 678 9 678 99 678 69 678 6 678 678 9 678 0 9 678 0 9 1 ZAPM45100 7 5 68 ...
Страница 476: ... 5 2 D 2 65 5 1 2 5 55 5 ZAPM45100 69 ...
Страница 477: ... 5 2 D 2 65 5 1 2 0 ZAPM45100 4 5 A 1 55 50 70 ...
Страница 478: ... 5 2 D 2 65 5 1 2 2 3 ZAPM45100 71 ...
Страница 479: ... 5 2 D 2 65 5 1 2 ZAPM45100 3 72 ...
Страница 480: ... 5 2 D 2 65 5 1 2 8 6 2 ZAPM45100 73 ...
Страница 481: ... 5 2 D 2 65 5 1 2 2 ZAPM45100 2 74 ...
Страница 482: ... 5 2 D 2 65 5 1 2 2 0 2 0 1 2 ZAPM45100 75 ...
Страница 483: ... 5 2 D 2 65 5 1 2 2 2 2 2 2 ZAPM45100 1 2 76 ...
Страница 486: ... 5 2 D 2 65 5 1 2 5 4 5 7 2 5 2 ZAPM45100 79 ...
Страница 487: ... 5 2 D 2 65 5 1 2 4 ZAPM45100 7 7 5 2 5 80 ...
Страница 488: ... 5 2 D 2 65 5 1 2 7 7 5 2 5 ZAPM45100 81 ...
Страница 489: ... 5 2 D 2 65 5 1 2 ZAPM45100 1 1 5 82 ...
Страница 490: ... 5 2 D 2 65 5 1 2 1 1 5 ZAPM45100 83 ...
Страница 491: ... 5 2 D 2 65 5 1 2 0 0 0 5 5 ZAPM45100 5 0 2 5 1 26 2 5 1 5 1 6 2 84 ...
Страница 492: ... 5 2 D 2 65 5 1 2 0 0 0 678 9 678 99 678 69 678 6 678 678 9 678 0 9 678 0 9 5 0 2 5 1 26 2 5 1 5 1 6 2 ZAPM45100 85 ...
Страница 493: ... 5 2 D 2 65 5 1 2 ZAPM45100 5 0 2 5 1 26 2 5 1 5 1 6 2 86 ...
Страница 494: ... 5 2 D 2 65 5 1 2 0 4 5 5 6 50 ZAPM45100 87 ...
Страница 495: ... 5 2 D 2 65 5 1 2 0 ZAPM45100 5 6 50 88 ...
Страница 496: ... 5 2 D 2 65 5 1 2 5 2 ZAPM45100 89 ...
Страница 497: ... 5 2 D 2 65 5 1 2 ZAPM45100 4 5 90 ...
Страница 498: ... 5 2 D 2 65 5 1 2 2 5 5 ZAPM45100 91 ...
Страница 499: ... 5 2 D 2 65 5 1 2 ZAPM45100 5 5 92 ...
Страница 500: ... 5 2 D 2 65 5 1 2 5 ZAPM45100 93 ...
Страница 501: ... 5 2 D 2 65 5 1 2 ZAPM45100 4 2 5 2 6 622 94 ...
Страница 502: ... 5 2 D 2 65 5 1 2 4 5 2 65 1 ZAPM45100 95 ...
Страница 503: ... 5 2 D 2 65 5 1 2 ZAPM45100 4 5 2 65 1 96 ...
Страница 504: ... 5 2 D 2 65 5 1 2 4 7 5 65 1 ZAPM45100 97 ...
Страница 505: ... 5 2 D 2 65 5 1 2 0 0 ZAPM45100 4 2 25 2 22 5 5 98 ...
Страница 506: ... 5 2 D 2 65 5 1 2 4 5 A 4 2 1 16 2 5 25 25 2 6 ZAPM45100 99 ...
Страница 507: ... 5 2 D 2 65 5 1 2 0 ZAPM45100 4 2 1 16 2 5 25 25 2 6 100 ...
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