Tag Archives: Yanmar YPD-MP2 / YPD-MP4

Yanmar YPD-MP2 / YPD-MP4 Fuel Injection Equipment Service Manual Download

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(ID 187535270)
Yanmar YPD-MP2 / YPD-MP4 Fuel Injection Equipment Service Manual Download

This document describes the features, disassembly, reassembly and adjustment procedure of the fuel injection unit
(Model YPD-MP2,MP4) for Yanmar Diesel Engine Model TNV.
This manual contains service,repair procedures,assembling,disassembling, wiring diagrams and everything you need to know.

Service Repair Manual Covers:

1. FOR SAFE SERVICING
1.1. Warning Symbols
1.2. Safety Precautions
2. GENERAL INFORMATION
2.1. Outline of MP pump
2.2. Specifications
2.3. Outline of fuel injection pump
2.4. Construction of MP-Pump
2.4.1. Fuel Injection Part
2.4.2. Governor Part
2.4.3. Delivery Part
2.5. Function of Component
2.5.1. F.O. Feed Pump
2.6. Timer Mechanism
2.6.1. Structure and Functions
2.7. C.S.D.(Cold Start Device)
2.7.1. Cold Starting Advancer
3. DISASSEMBLY ,REASSEMBLY AND INSPECTION
3.1. Disassembly
3.1.1. Separating the pump body from the governor body
3.1.2. Separating the governor weight CMP
3.1.3. Disassembling the hydraulic head
3.1.4. Separating hydraulic head CMP
3.1.5. Separating the cam shaft
3.1.6. Disassembling the hydraulic head CMP
3.2. Disassembling the Governor
3.3. Reassembly
3.3.1. Re-assembling the hydraulic head
3.3.2. Re-assembling Cam Shaft
3.3.3. Install the hydraulic head CMP.
3.3.4. Assembling the Hydraulic Head
3.4. Re-assembling the Governor
3.5. Combining Governor and Pump Bodies
4. ADJUSTMENT OF FUEL INJECTION PUMP AND GOVERNOR
4.1. Preparations
4.2. Bottom clearance adjustment(Fuel Injection Timing)
4.2.1. The bottom clearance adjusting value and the Cam classification
4.3. Adjustment of Governor
4.3.1. Adjustment of No Load Max. Engine Speed
4.3.2. Adjustment of Fuel Limit Bolt
4.3.3. Adjustment of Torque-Rise Point
4.3.4. Adjustment of Reverse Angleich
4.3.5. Adjustment of Staring Injection Amount
4.3.6. Checking the Injection Stop
5. FUEL INJECTION NOZZLE
5.1. Functioning of fuel injection nozzle
5.2. Type/construction of fuel injection nozzle
5.3. Fuel injection nozzle disassembly
5.4. Fuel injection nozzle inspection
5.4.1. Washing
5.4.2. Nozzle inspection
5.5. Fuel injection nozzle reassembly
5.6. Adjusting fuel injection nozzle
5.6.1. Adjusting opening pressure
5.6.2. Injection test
6. TROUBLESHOOTING
6.1. Troubleshooting of fuel injection pump
6.2. Major faults and troubleshooting
7. TIGHTENING TORQUES FOR MAIN BOLTS AND NUTS
7.1. Pump part
7.2. Mechanical governor part
8. TOOLS

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Language: English
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