Do you have a question about the OM602 and is the answer not in the manual?
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José Manuel
June 1, 2025
Puesta a punto bomba inyección
1 comments:
Mr. Anderson
June 1, 2025
To adjust the injection pump for a Mercedes-Benz OM602:
1. Tie down the throttle lever wide open. 2. Loosen the mounting bolts: 3 front and 1 rear. 3. Use a test pipe (can be homemade) on a spare injection line. 4. Pump the priming plunger and rotate the pump until fuel flow equals 1 drip per second from the pipe. 5. Lock down the four mounting bolts once proper flow is achieved. 6. Remove the throttle tie-down, test pipe, and reinstall the delivery valve/spring and injection pipe. 7. Expect the engine to misfire for 30 seconds as air clears from the lines. 8. For ALDA adjustment: Loosen the 10mm locknut and turn the screw counterclockwise in 1/4 turn increments to increase low-boost fuel until black smoke appears briefly under full throttle from a standstill. 9. Refill the pump with fresh oil after adjustment (about 1/2 quart).
Use a pyrometer (EGT gauge) to monitor exhaust temperatures. Do not exceed 1250°F for continuous use or 1400°F for brief periods.
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Do you have a question about the OM602 and is the answer not in the manual?
Questions and answers
Puesta a punto bomba inyección
To adjust the injection pump for a Mercedes-Benz OM602:
1. Tie down the throttle lever wide open.
2. Loosen the mounting bolts: 3 front and 1 rear.
3. Use a test pipe (can be homemade) on a spare injection line.
4. Pump the priming plunger and rotate the pump until fuel flow equals 1 drip per second from the pipe.
5. Lock down the four mounting bolts once proper flow is achieved.
6. Remove the throttle tie-down, test pipe, and reinstall the delivery valve/spring and injection pipe.
7. Expect the engine to misfire for 30 seconds as air clears from the lines.
8. For ALDA adjustment: Loosen the 10mm locknut and turn the screw counterclockwise in 1/4 turn increments to increase low-boost fuel until black smoke appears briefly under full throttle from a standstill.
9. Refill the pump with fresh oil after adjustment (about 1/2 quart).
Use a pyrometer (EGT gauge) to monitor exhaust temperatures. Do not exceed 1250°F for continuous use or 1400°F for brief periods.
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vacum system diagram mercedes benz OM602 TD