Information injection-pump assembly
BOSCH
9 460 613 489
9460613489
ZEXEL
104745-8601
1047458601
Rating:
Components :
0. | INJECTION-PUMP ASSEMBLY | 104745-8601 |
1. | _ | |
2. | FUEL INJECTION PUMP | 104645-8590 |
3. | NUMBER PLATE | 146987-0800 |
4. | _ | |
5. | CAPSULE | 146620-0120 |
6. | ADJUSTING DEVICE | |
7. | NOZZLE AND HOLDER ASSY | 105148-1560 |
8. | Nozzle and Holder | MD338904 |
9. | Open Pre:MPa(Kqf/cm2) | 14.7{150} |
10. | NOZZLE-HOLDER | 105078-0181 |
11. | NOZZLE | 105007-1120 |
Scheme ###:
1/6. | [1] | 146601-0700 | PACKING RING |
6. | [1] | 146100-0220 | SUPPLY PUMP |
9. | [1] | 146103-0100 | COVER |
10. | [2] | 139104-0000 | FLAT-HEAD SCREW |
12. | [1] | 146200-0320 | DRIVE SHAFT |
12/1. | [1] | 146200-0300 | DRIVE SHAFT |
12/2. | [1] | 146201-0000 | WOODRUFF KEY |
12/3. | [2] | 146202-0100 | DAMPER |
12/4. | [1] | 146203-0000 | TOOTHED GEAR |
17. | [1] | 146204-0000 | PLAIN WASHER |
20. | [1] | 146210-2320 | ROLLER SET |
24. | [1] | 146303-0100 | BEARING PIN |
25. | [1] | 146304-0000 | BEARING PIN |
26. | [1] | 146305-0000 | CLAMPING BAND |
27. | [1] | 146205-0000 | SLOTTED WASHER |
29. | [1] | 146220-2120 | CAM PLATE |
30. | [1] | 146600-0800 | O-RING |
31. | [1] | 146311-6320 | PUMP PLUNGER |
32. | [1] | 146301-0000 | SLIDING PIECE |
34. | [1] | 146312-2800 | COMPRESSION SPRING |
34B. | [1] | 146312-2900 | COMPRESSION SPRING |
34C. | [1] | 146312-2700 | COMPRESSION SPRING |
35/1. | [1] | 146690-3200 | SHIM D11.5&9.4T0.1 |
35/1. | [1] | 146690-3300 | SHIM D11.5&9.4T0.2 |
35/1. | [1] | 146690-3400 | SHIM D11.5&9.4T0.25 |
35/1. | [1] | 146690-3500 | SHIM D11.5&9.4T1.0 |
35/1. | [1] | 146690-4100 | SHIM D11.5&9.4T2 |
35/1. | [1] | 146690-4200 | SHIM D11.5&9.4T0.5 |
35/1. | [1] | 146690-4300 | SHIM D11.5&9.4T0.75 |
36. | [1] | 146600-0800 | O-RING |
37. | [1] | 146310-4020 | COVER |
38. | [2] | 146620-5000 | BLEEDER SCREW |
39. | [1] | 146310-0100 | COVER |
40. | [2] | 146620-5000 | BLEEDER SCREW |
41. | [1] | 146312-1900 | COMPRESSION SPRING |
43. | [1] | 146230-0000 | SHIM |
44. | [1] | 146230-0100 | PLAIN WASHER |
45. | [1] | 146231-0001 | SLOTTED WASHER |
47. | [2] | 146233-0000 | SLOTTED WASHER |
48/1. | [1] | 146603-0000 | SHIM D17.0&5.2T0.50 |
48/1. | [1] | 146603-0100 | SHIM D17.0&5.2T0.80 |
48/1. | [1] | 146603-0200 | SHIM D17.0&5.2T1.00 |
48/1. | [1] | 146603-0300 | SHIM D17.0&5.2T1.20 |
48/1. | [1] | 146603-0400 | SHIM D17.0&5.2T1.50 |
48/1. | [1] | 146603-0500 | SHIM D17.0&5.2T1.80 |
48/1. | [1] | 146603-0600 | SHIM D17.0&5.2T2.00 |
48/1. | [1] | 146690-1400 | SHIM D17&5.2T0.9 |
48/1. | [1] | 146690-1500 | SHIM D17&5.2T1.1 |
48/1. | [1] | 146690-1600 | SHIM D17&5.2T1.3 |
48/1. | [1] | 146690-1700 | SHIM D17&5.2T1.4 |
48/1. | [1] | 146690-1800 | SHIM D17&5.2T1.6 |
48/1. | [1] | 146690-1900 | SHIM D17&5.2T1.7 |
48/1. | [1] | 146690-5800 | SHIM D17&5.2T2.1 |
48/1. | [1] | 146690-5900 | SHIM D17&5.2T2.2 |
48/1. | [1] | 146690-6000 | SHIM D17&5.2T2.3 |
48/1. | [1] | 146690-6100 | SHIM D17&5.2T2.4 |
48/1. | [1] | 146690-6200 | SHIM D17&5.2T2.5 |
48/1. | [1] | 146690-6300 | SHIM D17&5.2T2.6 |
48/1. | [1] | 146690-6400 | SHIM D17&5.2T2.7 |
48/1. | [1] | 146690-6500 | SHIM D17&5.2T2.8 |
48/1. | [1] | 146690-6600 | SHIM D17&5.2T2.9 |
48/1. | [1] | 146690-6700 | SHIM D17&5.2T3.0 |
48/1. | [1] | 146690-6800 | SHIM D17&5.2T3.1 |
48/1. | [1] | 146690-6900 | SHIM D17&5.2T3.2 |
48/1. | [1] | 146690-7000 | SHIM D17&5.2T3.3 |
48/1. | [1] | 146690-7100 | SHIM D17&5.2T3.4 |
48/1. | [1] | 146690-7200 | SHIM D17&5.2T0.4 |
48/1. | [1] | 146690-7300 | SHIM D17&5.2T0.6 |
48/1. | [1] | 146690-7400 | SHIM D17&5.2T0.7 |
48/1. | [1] | 146690-7500 | SHIM D17&5.2T1.9 |
48/1. | [1] | 146690-7800 | SHIM D17&5.2T0.2 |
49. | [2] | 146234-0500 | GUIDE PIN |
50. | [1] | 146401-0221 | HYDRAULIC HEAD |
50. | [1] | 146401-0221 | HYDRAULIC HEAD |
50. | [1] | 146401-0221 | HYDRAULIC HEAD |
51. | [1] | 146600-0000 | O-RING |
52/1. | [1] | 146420-0000 | SHIM D9.5&3.0T1.90 |
52/1. | [1] | 146420-0100 | SHIM D9.5&3.0T1.92 |
52/1. | [1] | 146420-0200 | SHIM D9.5&3.0T1.94 |
52/1. | [1] | 146420-0300 | SHIM D9.5&3.0T1.96 |
52/1. | [1] | 146420-0400 | SHIM D9.5&3.0T1.98 |
52/1. | [1] | 146420-0500 | SHIM D9.5&3.0T2.00 |
52/1. | [1] | 146420-0600 | SHIM D9.5&3.0T2.02 |
52/1. | [1] | 146420-0700 | SHIM D9.5&3.0T2.04 |
52/1. | [1] | 146420-0800 | SHIM D9.5&3.0T2.06 |
52/1. | [1] | 146420-0900 | SHIM D9.5&3.0T2.08 |
52/1. | [1] | 146420-1000 | SHIM D9.5&3.0T2.10 |
52/1. | [1] | 146420-1100 | SHIM D9.5&3.0T2.12 |
52/1. | [1] | 146420-1200 | SHIM D9.5&3.0T2.14 |
52/1. | [1] | 146420-1300 | SHIM D9.5&3.0T2.16 |
52/1. | [1] | 146420-1400 | SHIM D9.5&3.0T2.18 |
52/1. | [1] | 146420-1500 | SHIM D9.5&3.0T2.20 |
52/1. | [1] | 146420-1600 | SHIM D9.5&3.0T2.22 |
52/1. | [1] | 146420-1700 | SHIM D9.5&3.0T2.24 |
52/1. | [1] | 146420-1800 | SHIM D9.5&3.0T2.26 |
52/1. | [1] | 146420-1900 | SHIM D9.5&3.0T2.28 |
52/1. | [1] | 146420-2000 | SHIM D9.5&3.0T2.30 |
52/1. | [1] | 146420-2100 | SHIM D9.5&3.0T2.32 |
52/1. | [1] | 146420-2200 | SHIM D9.5&3.0T2.34 |
52/1. | [1] | 146420-2300 | SHIM D9.5&3.0T2.36 |
52/1. | [1] | 146420-2400 | SHIM D9.5&3.0T2.38 |
52/1. | [1] | 146420-2500 | SHIM D9.5&3.0T2.40 |
52/1. | [1] | 146420-2600 | SHIM D9.5&3.0T2.42 |
52/1. | [1] | 146420-2700 | SHIM D9.5&3.0T2.44 |
52/1. | [1] | 146420-2800 | SHIM D9.5&3.0T2.46 |
52/1. | [1] | 146420-2900 | SHIM D9.5&3.0T2.48 |
52/1. | [1] | 146420-3000 | SHIM D9.5&3.0T2.50 |
52/1. | [1] | 146420-3100 | SHIM D9.5&3.0T2.52 |
52/1. | [1] | 146420-3200 | SHIM D9.5&3.0T2.54 |
52/1. | [1] | 146420-3300 | SHIM D9.5&3.0T2.56 |
52/1. | [1] | 146420-3400 | SHIM D9.5&3.0T2.58 |
52/1. | [1] | 146420-3500 | SHIM D9.5&3.0T2.60 |
52/1. | [1] | 146420-3600 | SHIM D9.5&3.0T2.62 |
52/1. | [1] | 146420-3700 | SHIM D9.5&3.0T2.64 |
52/1. | [1] | 146420-3800 | SHIM D9.5&3.0T2.66 |
52/1. | [1] | 146420-3900 | SHIM D9.5&3.0T2.68 |
52/1. | [1] | 146420-4000 | SHIM D9.5&3.0T2.70 |
52/1. | [1] | 146420-4100 | SHIM D9.5&3.0T2.72 |
52/1. | [1] | 146420-4200 | SHIM D9.5&3.0T2.74 |
52/1. | [1] | 146420-4300 | SHIM D9.5&3.0T2.76 |
52/1. | [1] | 146420-4400 | SHIM D9.5&3.0T2.78 |
52/1. | [1] | 146420-4500 | SHIM D9.5&3.0T2.80 |
52/1. | [1] | 146420-4600 | SHIM D9.5&3.0T2.82 |
52/1. | [1] | 146420-4700 | SHIM D9.5&3.0T2.84 |
52/1. | [1] | 146420-4800 | SHIM D9.5&3.0T2.86 |
52/1. | [1] | 146420-4900 | SHIM D9.5&3.0T2.88 |
52/1. | [1] | 146420-5000 | SHIM D9.5&3.0T2.90 |
52/1. | [1] | 146420-5100 | SHIM D9.5&3.0T1.74 |
52/1. | [1] | 146420-5200 | SHIM D9.5&3.0T1.76 |
52/1. | [1] | 146420-5300 | SHIM D9.5&3.0T1.78 |
52/1. | [1] | 146420-5400 | SHIM D9.5&3.0T1.80 |
52/1. | [1] | 146420-5500 | SHIM D9.5&3.0T1.82 |
52/1. | [1] | 146420-5600 | SHIM D9.5&3.0T1.84 |
52/1. | [1] | 146420-5700 | SHIM D9.5&3.0T1.86 |
52/1. | [1] | 146420-5800 | SHIM D9.5&3.0T1.88 |
54. | [4] | 146433-0100 | GASKET D12&6.4T1.00 |
55. | [4] | 146430-0320 | DELIVERY-VALVE ASSEMBLY |
56. | [4] | 146432-0000 | COMPRESSION SPRING |
58. | [4] | 146440-0320 | FITTING |
60. | [4] | 139106-0100 | FLAT-HEAD SCREW |
67. | [1] | 146820-7820 | GOVERNOR COVER |
67/1. | [1] | 146508-6821 | GOVERNOR COVER |
67/2. | [1] | 146515-0320 | CONTROL SHAFT |
67/3. | [1] | 146600-0100 | O-RING |
67/4. | [1] | 139310-0200 | PLAIN WASHER |
67/13. | [1] | 146621-1700 | UNION NUT |
67/14. | [1] | 146621-1700 | UNION NUT |
67/15. | [1] | 146526-3400 | BLEEDER SCREW |
67/16. | [1] | 146526-2800 | BLEEDER SCREW |
67/78. | [1] | 146600-4400 | SEAL RING |
67/200. | [1] | 139308-0300 | PLAIN WASHER |
67/201. | [1] | 146545-3400 | THREADED PIN L53.00 |
67/201B. | [1] | 146545-3500 | THREADED PIN L55.00 |
67/201C. | [1] | 146545-3600 | THREADED PIN L57.00 |
67/202. | [1] | 139208-0900 | UNION NUT |
67/203. | [1] | 146600-1200 | O-RING |
72. | [1] | 146539-4420 | CONTROL LEVER |
72B. | [1] | 146539-4520 | CONTROL LEVER |
72C. | [1] | 146832-0720 | CONTROL LEVER |
72D. | [1] | 146832-0820 | CONTROL LEVER |
73. | [1] | 014110-6440 | LOCKING WASHER |
75. | [1] | 013020-6040 | UNION NUT M6P1H5 |
95. | [1] | 146551-6120 | FULCRUM LEVER |
104. | [2] | 146568-0000 | SLOTTED SPRING PIN |
105. | [2] | 026508-1140 | GASKET D11.4&8.2T1 |
106. | [2] | 146588-0500 | COILED SPRING |
107. | [1] | 146569-0300 | UNION NUT |
108. | [1] | 146570-0420 | GOVERNOR SHAFT |
109. | [1] | 146600-0400 | O-RING |
110/1. | [1] | 146571-0000 | SHIM D20.2&8.3T1.05 |
110/1. | [1] | 146571-0100 | SHIM D20.2&8.3T1.25 |
110/1. | [1] | 146571-0200 | SHIM D20.2&8.3T1.45 |
110/1. | [1] | 146571-0300 | SHIM D20.2&8.3T1.65 |
110/1. | [1] | 146571-0400 | SHIM D20.2&8.3T1.85 |
110/1. | [1] | 146571-0500 | SHIM D20.2&8.3T1.15 |
110/1. | [1] | 146571-0600 | SHIM D20.2&8.3T1.35 |
110/1. | [1] | 146571-0700 | SHIM D20.2&8.3T1.55 |
110/1. | [1] | 146571-0800 | SHIM D20.2&8.3T1.75 |
111. | [1] | 146602-0600 | PLAIN WASHER D20&8.4T1.40 |
112. | [1] | 146572-0020 | FLYWEIGHT ASSEMBLY |
114. | [1] | 146602-0500 | PLAIN WASHER D17&6.4T1.60 |
115. | [1] | 146975-7900 | SLIDING SLEEVE |
116. | [1] | 146576-0000 | SEALING CAP |
117/1. | [1] | 146577-1800 | PLUG L2.10 |
117/1. | [1] | 146577-1900 | PLUG L2.30 |
117/1. | [1] | 146577-2000 | PLUG L2.50 |
117/1. | [1] | 146577-2100 | PLUG L2.70 |
117/1. | [1] | 146577-2200 | PLUG L2.90 |
117/1. | [1] | 146577-2300 | PLUG L3.10 |
117/1. | [1] | 146577-2400 | PLUG L3.30 |
117/1. | [1] | 146577-2500 | PLUG L3.50 |
117/1. | [1] | 146577-2600 | PLUG L3.70 |
117/1. | [1] | 146577-2700 | PLUG L3.90 |
117/1. | [1] | 146577-2800 | PLUG L4.10 |
117/1. | [1] | 146577-2900 | PLUG L4.30 |
117/1. | [1] | 146577-3000 | PLUG L4.50 |
117/1. | [1] | 146577-3100 | PLUG L4.70 |
117/1. | [1] | 146577-3200 | PLUG L4.90 |
117/1. | [1] | 146577-3300 | PLUG L5.10 |
117/1. | [1] | 146577-6700 | PLUG L2.2 |
117/1. | [1] | 146577-6800 | PLUG L2.4 |
117/1. | [1] | 146577-6900 | PLUG L2.6 |
117/1. | [1] | 146577-7000 | PLUG L2.8 |
117/1. | [1] | 146577-7100 | PLUG L3.0 |
117/1. | [1] | 146577-7200 | PLUG L3.2 |
117/1. | [1] | 146577-7300 | PLUG L3.4 |
117/1. | [1] | 146577-7400 | PLUG L3.6 |
117/1. | [1] | 146577-7500 | PLUG L3.8 |
117/1. | [1] | 146577-7600 | PLUG L4.0 |
117/1. | [1] | 146577-7700 | PLUG L4.2 |
117/1. | [1] | 146577-7800 | PLUG L4.4 |
117/1. | [1] | 146577-7900 | PLUG L4.6 |
117/1. | [1] | 146577-8000 | PLUG L4.8 |
117/1. | [1] | 146577-8100 | PLUG L5.0 |
117/1. | [1] | 146877-0000 | PLUG L5.2 |
117/1. | [1] | 146877-0100 | PLUG L5.3 |
117/1. | [1] | 146877-0200 | PLUG L5.4 |
117/1. | [1] | 146877-0300 | PLUG L5.5 |
117/1. | [1] | 146877-4700 | PLUG |
117/1. | [1] | 146877-4800 | PLUG |
117/1. | [1] | 146877-4900 | PLUG |
117/1. | [1] | 146877-5000 | PLUG |
120. | [1] | 146579-5320 | RETAINING PIN |
122. | [1] | 146580-2300 | GOVERNOR SPRING |
123. | [4] | 139106-0200 | FLAT-HEAD SCREW |
130. | [1] | 146421-0020 | CAPSULE |
130/2. | [1] | 026508-1140 | GASKET D11.4&8.2T1 |
130/3. | [1] | 146422-0000 | BLEEDER SCREW |
130/4. | [1] | 146600-0500 | O-RING |
133. | [1] | 146600-0600 | O-RING |
134. | [1] | 146600-0700 | O-RING |
135. | [1] | 146110-0220 | CONTROL VALVE |
135/5. | [1] | 146114-0000 | SPRING WASHER |
136. | [1] | 146120-0020 | OVER FLOW VALVE |
137. | [2] | 139512-0500 | GASKET |
138. | [1] | 146666-8620 | INLET UNION |
200. | [1] | 146206-0100 | COILED SPRING |
205. | [1] | 029470-4030 | WOODRUFF KEY |
217. | [1] | 146542-5300 | SLOTTED WASHER |
218. | [1] | 146592-2500 | COILED SPRING |
219. | [1] | 146541-3000 | BUSHING |
220. | [1] | 146592-2600 | COILED SPRING |
224. | [1] | 139006-4400 | BLEEDER SCREW |
229. | [1] | 146934-4920 | BRACKET |
230. | [1] | 146613-2500 | BRACKET |
231. | [1] | 139006-4600 | BLEEDER SCREW |
231. | [1] | 139006-4600 | BLEEDER SCREW |
233. | [1] | 146658-9020 | WIRE |
235. | [1] | 146659-0600 | CLAMPING BAND |
240. | [1] | 146650-1220 | PULLING ELECTROMAGNET |
240/8. | [1] | 146600-1700 | O-RING |
243. | [1] | 146621-4901 | UNION NUT |
245. | [3] | 139512-0500 | GASKET |
246. | [1] | 139812-1900 | EYE BOLT |
247. | [1] | 146666-8520 | INLET UNION |
248. | [1] | 146614-0200 | SPACER BUSHING |
251. | [1] | 146125-0101 | FILTER |
252. | [1] | 146125-0200 | COILED SPRING |
253. | [1] | 139006-4500 | BLEEDER SCREW |
275. | [1] | 146612-4800 | BRACKET |
276. | [2] | 010010-1640 | BLEEDER SCREW M10P1.5L16 4T |
800S. | [1] | 146018-2720 | PUMP HOUSING |
800S/1/6. | [1] | 146601-0700 | PACKING RING |
804S. | [1] | 146232-0320 | COMPRESSION SPRING |
805S. | [1] | 146574-0120 | PARTS SET |
810S. | [1] | 146600-1120 | REPAIR SET |
821S. | [1] | 146210-5720 | ROLLER SET |
835S. | [1] | 146598-1000 | CAP |
836S/1. | [1] | 146598-0600 | CAP L18 |
836S/1. | [1] | 146598-0700 | CAP L21 |
836S/1. | [1] | 146598-0800 | CAP L24 |
836S/1. | [1] | 146598-0900 | CAP L27 |
903. | [1] | 146620-0120 | CAPSULE |
903/2. | [1] | 146600-1300 | O-RING &13W1.9 |
906. | [1] | 146987-0800 | NAMEPLATE |
910S. | [1] | 146600-4220 | PARTS SET |
910S. | [1] | 146600-4220 | PARTS SET |
912S. | [1] | 026508-1140 | GASKET D11.4&8.2T1 |
913S. | [1] | 146422-0000 | BLEEDER SCREW |
914S. | [1] | 146699-0020 | VALVE SET |
914S. | [1] | 146699-0020 | VALVE SET |
915S. | [1] | 146658-9020 | WIRE |
916S. | [1] | 025804-1610 | WOODRUFF KEY |
Include in #2:
104745-8601
as INJECTION-PUMP ASSEMBLY
Cross reference number
Zexel num
Bosch num
Firm num
Name
Information:
start by: a) remove fuel injection lines 1. Remove cover (1) from the front of the timing gear cover. Remove bolt (2) and washer (3). Install bolt (2) again to the position shown. Use tool (A) to loosen the pump drive gear from the camshaft. Remove tool (A) and bolt (2).2. Remove the governor linkage. Disconnect the fuel supply line. 3. Remove inlet oil tube (4) for the turbocharger.4. Disconnect the air tube from the fuel ratio control.5. Disconnect hose (5).6. Disconnect the three drain tubes from the fuel injection pump housing.7. Remove bracket (6).8. Remove the three nuts that hold the fuel injection pump housing and governor to the timing plate.9. Remove the fuel injection pump housing and governor.Install Fuel Injection Pump Housing And Governor
1. Use the following procedures to put the No. 1 piston at top center on the compression stroke. No. 1 piston at top center (TC) on the compression stroke is the starting point for all timing procedures. The engine is seen from the flywheel end when direction of flywheel rotation is given.a) Turn the flywheel approximately 30 degrees clockwise. The reason for making this step is to be sure the play is removed from the timing gears when the engine is put on top center. b) For engines with a timing pointer, remove the cover on the flywheel housing. Turn the flywheel counterclockwise until the "TC 1" mark on the flywheel is in alignment with the pointer.c) For engines with a timing bolt, turn the flywheel counterclockwise until a 3/8-16 NC bolt can be installed in the flywheel through the hole in the flywheel housing. Do not turn the flywheel backwards.d) Remove the breather from the valve cover. The rocker arms for No. 1 piston can be seen through the breather hole in the valve cover.e) Check to see if both rocker arms for the No. 1 piston can be moved backward and forward by hand. The No. 1 piston is at top center on the compression stroke when the "TC 1" mark on the flywheel is in alignment with the pointer, or the bolt can be put in the flywheel through the hole in the flywheel housing, and both rocker arms for the No. 1 piston can be moved backward and forward by hand. f) If both rocker arms can not be moved by hand, the No. 1 piston is not at top center on the compression stroke. Turn the flywheel counterclockwise one full turn (360°). For engines with a timing pointer, the "TC 1" mark on the flywheel must then be in alignment with the pointer. For engines with a timing bolt, the bolt must be installed in the flywheel through the hole in the flywheel housing.2. For engines with a timing pointer, turn the flywheel counterclockwise until the pointer is between the 1° and 2° mark on the flywheel as shown. 3. For engines with a timing bolt, do not turn the flywheel past this position. 4. Remove the
1. Use the following procedures to put the No. 1 piston at top center on the compression stroke. No. 1 piston at top center (TC) on the compression stroke is the starting point for all timing procedures. The engine is seen from the flywheel end when direction of flywheel rotation is given.a) Turn the flywheel approximately 30 degrees clockwise. The reason for making this step is to be sure the play is removed from the timing gears when the engine is put on top center. b) For engines with a timing pointer, remove the cover on the flywheel housing. Turn the flywheel counterclockwise until the "TC 1" mark on the flywheel is in alignment with the pointer.c) For engines with a timing bolt, turn the flywheel counterclockwise until a 3/8-16 NC bolt can be installed in the flywheel through the hole in the flywheel housing. Do not turn the flywheel backwards.d) Remove the breather from the valve cover. The rocker arms for No. 1 piston can be seen through the breather hole in the valve cover.e) Check to see if both rocker arms for the No. 1 piston can be moved backward and forward by hand. The No. 1 piston is at top center on the compression stroke when the "TC 1" mark on the flywheel is in alignment with the pointer, or the bolt can be put in the flywheel through the hole in the flywheel housing, and both rocker arms for the No. 1 piston can be moved backward and forward by hand. f) If both rocker arms can not be moved by hand, the No. 1 piston is not at top center on the compression stroke. Turn the flywheel counterclockwise one full turn (360°). For engines with a timing pointer, the "TC 1" mark on the flywheel must then be in alignment with the pointer. For engines with a timing bolt, the bolt must be installed in the flywheel through the hole in the flywheel housing.2. For engines with a timing pointer, turn the flywheel counterclockwise until the pointer is between the 1° and 2° mark on the flywheel as shown. 3. For engines with a timing bolt, do not turn the flywheel past this position. 4. Remove the