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John Deere 325 Engine

John Deere 325 Engine Specifications

Engine Model .......... Kawasaki FC540V
Engine Type .......... 4-Stroke Gasoline, Forced Air-cooled, Single Cylinder
Number of Cylinders .......... 1
Piston Displacement, cc (cu.in) .......... 535 (32.6)
Engine Bore, mm (in) .......... 89.0 (3.50)
Engine Stroke, mm (in) .......... 86.0 (3.39)
Engine Power, Hp (kW) .......... 17.0 (12.7)
Maximum Torque, Nm (ft-lb) .......... 36.7 (27.1)
Direction of Rotation .......... Counterclockwise facing the PTO Shaft
Fast Idle Speed, rpm .......... 3275-3425
Low Idle Speed, rpm .......... 1450-1650
Compression .......... 8.3:1
Lubricating Method .......... Pressurized
Oil Pan Capacity, L (qt) .......... 1.6 (1.7)
Choke Control .......... Automatic (with Throttle Control)
Air Cleaner .......... Semi-cyclone Type with Dual Element
Cooling Air Inlet .......... Rotating Screen with Periphery Blade Protector
Fuel System Type .......... Carburetor
Carburetor Type .......... Float Fixed Main Jet
Fuel Pump .......... Diaphragm Type Pulse Pump
Governor .......... Mechanical Flyweight
Ignition System Type .......... Transistorized Flywheel Magneto
Charging Coil .......... 12V-15A with Regulator
Electrical System Rating, Volts .......... 12
Alternator Charging Capacity, Amp .......... 15
Electric Starter .......... 12V, 0.8 kW Shift Type
Recommended Battery .......... 12V, 280 CCA

John Deere 325 Engine Maintenance Data

Carburetor Adjustment

1. Idle mixture adjustment .......... Turn pilot screw clockwise until just closes.
2. Do not turn screw in too far to avoid pointed end damaged.
3. Open screw by turning 1-1/2 counterclockwise as initial setting.
4. Start and allow engine to warm.
5. Move speed control lever or throttle lever on equipment to "idle" position.
6. Adjust throttle stop screw to obtain 1550 RPM by turning it in or out.
7. Adjust pilot screw by turning clockwise (lean) or counterclockwise (rich) to obtain peak of idling.
8. Then turn out pilot screw 1/4 more from peak.
9. Re-adjust throttle stop screw to obtain and satisfy specified 1550 RPM idling.
Low idle speed, rpm .......... 1550
Fast idle speed, rpm .......... 3550

Valve Adjustment

Intake Valve Clearance (cold) .......... 0.15 mm (0.006 in.)
Exhaust Valve Clearance (cold) .......... 0.15 mm (0.006 in.)
Valve Spring Free Length .......... 37.5 mm (1.47 in.)
Intake Valve Seat Width .......... 1.10-1.46 mm (0.043-0.057 in.)
Exhaust Valve Seat Width .......... 1.10-1.46 mm (0.043-0.057 in.)

Engine Oil and Filter

Engine Oil Type .......... SAE 40, 30, SAE 10W-30/SAE 10W-40, or SAE 5W-20
Oil Classification .......... SF, SE, SD API service classification
Oil Capacity, L (qts) .......... 1.6 (1.7)
Oil Filter Part Number .......... AM107423
Air Filter Part Number .......... M97266

Ignition System

Spark Plug .......... Champion RN11YC or NGK BPR5ES
Spark Plug Gap, mm (in) .......... 0.7-0.8 (0.028-0.031)
Ignition Coil Air Gap, mm (in) .......... 0.3 (0.012)
Spark Plug Torque, Nm (ft-lb) .......... 15 (11.1)

John Deere 325 Engine Service Specifications

Cylinder Block

Cylinder Compression (Minimum), kPa .......... 483
Cylinder Bore Inside Diameter (Maximum) .......... 89.076 mm (3.5069 in)
Cylinder Bore Out Of Round (Maximum) .......... 0.063 mm (0.0025 in)
Cylinder Boring Size (0.25 mm Oversize) .......... 89.230-89.210 mm (3.5130-3.5122 in)
Cylinder Boring Size (0.50 mm Oversize) .......... 89.480-89.460 mm (3.5228-3.5220 in)
Cylinder Boring Size (0.75 mm Oversize) .......... 89.730-89.710 mm (3.5327-3.5319 in)
Rocker Arm Diameter .......... 12.936-13.068 mm (0.5093-0.5145 in)
PTO Bearing Inside Diameter (Maximum) .......... 38.056 mm (1.4983 in)
Connecting Rod Small End Diameter (Maximum) .......... 22.059 mm (0.8685 in)
Connecting Rod Big End Diameter (Maximum) .......... 41.068 mm (1.6169 in)

Valves

Clearance Between Valve Stem And Rocker Arm .......... 0.15 mm (0.006 in)
Intake Valve Stem Diameter (Minimum) .......... 6.930 mm (0.2728 in)
Exhaust Valve Stem Diameter (Minimum) .......... 6.915 mm (0.2722 in)
Valve Spring Free Length .......... 37.5 mm (1.47 in)
Intake/Exhaust Valve Seat Width .......... 1.1-1.46 mm (0.043-0.057 in)
Valve Guide Inside Diameter .......... 7.00-7.015 mm (0.2756-0.2762 in)

Piston and Piston Rings

Top Ring Groove Clearance (Maximum) .......... 0.17 mm (0.0067 in)
Second Ring Groove Clearance (Maximum) .......... 0.15 mm (0.0059 in)
Oil Ring Groove Clearance (Maximum) .......... 0.20 mm (0.0079 in)
Piston Pin Hole Diameter (Maximum) .......... 22.037 mm (0.8676 in)
Piston Pin Diameter (Minimum) .......... 21.977 mm (0.8652 in)
Top and Second Piston Ring Thickness (Minimum) .......... 1.94 mm (0.076 in)
Top and Second Piston Ring End Gap (Maximum) .......... 0.9 mm (0.035 in)

Camshaft

Camshaft Bearing Inside Diameter (Maximum) .......... 21.076 mm (0.8298 in)
Camshaft Bearing Inside Diameter (Maximum) .......... 21.076 mm (0.8298 in)
Camshaft Bearing Journal Diameter (Camshaft Side, Minimum) .......... 20.912 mm (0.8233 in)
Camshaft Bearing Journal Diameter (Gear Side, Minimum) .......... 20.912 mm (0.8233 in)
Camshaft Lobe Height (Minimum) .......... 37.10 mm (1.461 in)
Camshaft End Play .......... 0.07-0.19 mm (0.0028-0.0075 in)

Crankshaft

Crankshaft Bearing Journal Diameter (PTO Side, Minimum) .......... 37.904 mm (1.4923 in)
Crankshaft Bearing Journal Diameter (Magneto Side, Minimum) .......... 34.945 mm (1.3757 in)
Crank Pin Outside Diameter (Minimum) .......... 40.928 mm (1.6113 in)
Balancer Link Rod Journal Outside Diameter (Minimum) .......... 57.941 mm (2.2811 in)
Crankshaft End Play .......... 0.09-0.22 mm (0.0035-0.0087 in)
Balancer Link Rod Big End Inside Diameter (Maximum) .......... 58.153 mm (2.2895 in)

John Deere 325 Engine Tightening Torque Specs

Connecting rod bolt .......... 20 Nm (180 lb-in)
Crankcase cover bolt .......... 26 Nm (230 lb-in)
Valve clearance adjust nut .......... 20 Nm (180 lb-in)
Cylinder head bolt and nut .......... 52 Nm (380 lb-in)
Flywheel nut .......... 172 Nm (127 lb-in)
Electric starter to block bolt and nut .......... 16 Nm (140 lb-in)
Electric starter terminal nut .......... 11 Nm (100 lb-in)
Oil drain plug .......... 23 Nm (200 lb-in)
PTO side crankshaft end bolt .......... 38 Nm (340 lb-in)
Engine mounting flange bolt .......... 20 Nm (180 lb-in)

JOHN DEERE TRACTORS ATTACHMENTS
420	430	455	790	990
X300	X320	X330	X350	X475
X485	X500	X540	X570	X590
X700	X720	X738	X758	1023E
2025R	2210	2520	3025E	3032E
3038E	3038R	3039R	3046R	3203
3320	3520	4052R	4066R	4100
4105	4115	4200	4310	4320
4400	4410	4520	4600	4720

JD TRACTORS TROUBLESHOOTING
2640	3040	3310	3650	4100
5050D	5090R	5410	6105R	7200R
E130	L111	LA110	LT155	X300R