John Deere 2120 Tractor — tm4252

GROUP 10 - CYLINDER HEAD, CAMSHAFT AND BALANCER SHAFTS General information 10-1 Cylinder head 10-1 Removal 10-1 Repair 10-1 Installation ...

10-3 Adjusting valve clearance 10-3 Camshaft 10-4 Removal 10-4 Repair 10-4 Installation 10-5 Balancer shafts 10-6 Removal 10-6 Repair 10-6 Installation 10-8 Specifications 10-9 Torques for hardware 10-11 Special tools 10-12 Model 2120 Tractor TM-4252 (Dec-70) Engine 20 General Information, Diagnosing Malfunctions 5-1 Section 20 ENGINE CONTENTS OF THIS SECTION GROUP 5 - GENERAL INFORMATION, DIAG¬ NOSING MALFUNCTIONS Specifications 20-6 Torques for hardware 20-7 Special tools 20-7 Page GROUP 25 - TIMING GEAR TRAIN General information 5-2 Diagnosing malfunctions 5-2 General information 25-1 Removal 25-1 Repair 25-2 Installation 25-3 Specifications.

25-5 Torques for hardware 25-6 Special tools 25-6 GROUP 30 - OIL PUMP, OIL PRESSURE REGULATING VALVE AND OIL FILTER General information 30-1 Removal 30-2 Repair 30-2 Installation 30-4 Adjusting engine oil pressure 30-4 Specifications 30-5 Torques for hardware 30-6 Tune-up data 30-6 Special tools 30-6 GROUP 15 - CYLINDER BLOCK, LINERS, PISTONS AND CONNECTING RODS General information 15-1 Removal ......

15-1 Repair 15-1 Assembly 15-4 Installation 15-4 Specifications 15-7 Torques for hardware 15-8 Engine break-in 15-9 Tune-up data 15-9 Special tools 15-9 GROUP 35 - COOLING SYSTEM General information 35-1 Diagnosing malfunctions 35-2 Repair 35-2 Radiator 35-2 Adjusting fan belt 35-2 Water pump 35-2 Checking thermostat 35-4 Specifications 35-5 Torques for hardware 35-5 Special tools 35-5 GROUP 20 - CRANKSHAFT, MAIN BEARINGS AND FLYWHEEL General information 20-1 Removal 20-1 Repair 20-1 Installation 20-4 General information 40-1 Removal and disassembly 40-1 Repair 40-3 Assembly and installation 40-3 Adjustment 40-4 Specifications 40-5 GROUP 40 - SPEED CONTROL LINKAGE Printed in Germany