Since there is no technical information at hand, we can only refer to other similar models when we maintain the Italian Fiat 90-100 tractor. We must combine our existing knowledge and some tentative explorations to determine how to carry out maintenance. The summary of some experiences accumulated in practice is summarized below. Of course, if you can find relevant information, you should still rely on the information. 1 on the valve clearance adjustment problem First of all, according to the order of the rotor-type high-pressure pump to determine the engine's working order is 1-5-3-6-2-4, and then use the "twice adjustment method" to adjust. Intake valve clearance set 0.40-0.45mm, exhaust valve clearance is set to 0.60-0.70mm. 2 on the order of high pressure tubing. From the outer side of the rotor pump vertical to the body's outlet valve, turn the ring in turn will be connected to the engine 1-5-3- 6-2-4 Install the high pressure tubing for each cylinder. 3About the injection pressure The new injection pressure test result is about 20Mpa. 4About valve seat and valve replacement When necessary, we replace the valve seat and the valve in pairs, and use manual grinding to ensure that the valve subsidence is 0.7 -0.8mm.
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