John Deere Model 40 Tractor
Service Data

Detailed Torque Specifications
Detailed Service Specifications

GENERAL

Engine Make

John Deere

Cylinders

2

Bore - Inches

4

Stroke - Inches

4

Displacement - Cubic Inches

100.5

Compression Ratio

6.5:1

Pistons Removed From?

Above

Main Bearings - Number of

2

Main Bearings - Adjustable?

No

Rod Bearings - Adjustable?

No

Cylinder Sleeved?

No

Forward Speeds

4

Carburetor Make

Marvel-Schebler

Carburetor Model (gas)

TSX530

Carburetor Model (all-fuel)

TSX562

Distributor Model (Delco-Remy)

1111709

Generator Model (Delco-Remy)

1101859

Starter Model (Delco-Remy)

1107127

Regulator Model (Delco Remy)

1118308

Electrical System - Voltage

6

Battery Ground Polarity

Positive

TUNE-UP INFORMATION

Compression - Gage Pounds

(G)125

Tappet Gap - Inlet and Exhaust

0.012C

Inlet Valve Face Angle

30 degrees

Exhaust Valve Face Angle

45 degrees

Inlet Valve Seat Angle

30 degrees

Exhaust Valve Seat Angle

45 degrees

Timing Mark Location

Flywheel

Advance Timing Degrees

25

Breaker Point Gap

0.022

Spark Plug Size

14 mm

Electrode Gap

0.025

Engine High Idle - RPM

2025

Engine Loaded - RPM

1850

Belt Pulley High Idle - RPM

1390

Belt Pulley Loaded - RPM

1270

Power Shaft High Idle - RPM

612

Power Shaft Loaded - RPM

560

SIZES - CAPACITIES - CLEARANCES

Crankshaft Journal Diameter

2.3975

Crankpin Diameter

2.4985

Camshaft Journal Diameter

1.810

Piston Pin Diameter

1.1878

Valve Stem Diameter - Intake

0.3720

Valve Stemp Diameter - Exhaust

0.3720

Compression Ring - Width

3/32-inch

Oil Ring - Width

1/4-inch

Main Bearing Running Clearance

0.001-0.0035

Rod Bearing Running Clearance

0.001-0.0035

Camshaft Bearing Running Clearance

0.0015-0.0035

Crankshaft End Play

0.003-0.007

Camshaft End Play

0.003-0.007

Piston Skirt Clearance

0.004-0.006

Cooling System

3.5 Gallons

Crankcase Oil

5 Quarts

Fuel Tank

10.5 Gallons

Starting Tank (all-fuel)

0.9 Gallons

Transmission and Differential

6.5 Quarts
(40T) 7.5 Quarts

Final Drives - Each

(40H) 1.5 Pints
(40U) 2.5 Pints
(40S, 40W) 3.5 Pints
(40V) 1.75 Quarts
(40T) 2 Quarts

Touch-O-Matic:

     Single

4.5 Quarts

     Dual

5.5 Quarts

Belt Pulley

0.5 Pint

TIGHTENING TORQUE -- FOOT-POUNDS

Cylinder Head Bolts

100-110

Main Bearing Bolts

140

Rod Bearing Bolts

55-60

Rocker Arm Assembly Nuts

25-30

Flywheel Cap Screws

75-80