Factory Specifications
Massey Ferguson 135
1964–1975
Source: Operators Manual Form No. 1448 077 M6Engine Specifications
| Specification | Gasoline | Diesel |
|---|---|---|
| Engine Model | Perkins AG3.152 | Perkins AD3.152 |
| Cylinders | 3 | 3 |
| Bore | 3.6 inches | 3.6 inches |
| Stroke | 5 inches | 5 inches |
| Displacement | 152.7 cu. in. | 152.7 cu. in. |
| Compression Ratio | 7.5:1 | 18.5:1 |
| Firing Order | 1-2-3 | 1-2-3 |
| Idle Speed | 750 ± 25 rpm | 725–775 rpm |
| Max Speed (no load) | 2225–2275 rpm (no load) | 2135–2185 rpm (no load) |
| Governor | Variable speed centrifugal, fly weight | Built-in injection pump |
| Oil Pressure | 40–55 psi at 2000 rpm | 40–55 psi at 2000 rpm |
| Valve Clearance (Hot) | Hot: intake 0.012 inch / exhaust 0.015 inch | Hot: 0.010 inch (intake & exhaust) |
| Valve Clearance (Cold) | — | Cold: 0.012 inch (intake & exhaust) |
| Injection Pump | — | CAV distributor type |
| Injection Timing | — | 24° BTDC |
| Fuel Injectors | — | CAV multi-hole type |
| Fuel Filtering | — | One filter, full flow, replaceable element |
Fuel System
Gasoline
Gravity flow. Up draft dustproof carburetor.
Diesel
Pressure-fed. Diaphragm primary pump. One full-flow filter with replaceable element.
Cooling System
Centrifugal pump, bypass system. Flow thermostatically controlled through radiator.Pressure Cap: 7 psi
Power Train & PTO
Live PTO Clutch
Dual dry-disc — primary coil spring-loaded 11" dia., secondary Belleville spring-loaded 9" dia.
Independent PTO Clutch
Single dry-disc, 11" dia.
Transmissions Available
- 6-Speed: Constant mesh, helical primary reduction gears with spur-type speed change gears. Planetary reduction assembly — 6 forward, 2 reverse.
- Multi-Power: Same as 6-speed with 2-stage planetary compounding — 12 forward, 4 reverse.
- 8-Speed: 4-speed forward sliding gear set compounded by dual-range planetary — 8 forward, 2 reverse.
PTO Shaft: Splined, 1-3/8" dia. ASAE standard
| Mode | Speed |
|---|---|
| Live PTO (engine speed) | 540 rpm at 1700 engine rpm |
| Independent PTO ("On") | 540 rpm at 1700 engine rpm |
| Transmission PTO (engine) | 540 rpm at 1500 engine rpm |
| Ground Speed PTO | 1 revolution per approx. 20" of forward travel |
Electrical System
Gasoline
Voltage12V
GroundNegative ground
Battery60 Ah
ChargerDelco-Remy alternator
Charge Rate25 amp
Timing27° BTDC at 2250 rpm
Contact Points0.021 inch
Spark PlugChampion N12Y, 14mm
Spark Plug Gap0.025 inch
Diesel
Voltage12V
GroundNegative ground
Battery95 Ah (Independent PTO models); 60 Ah (Live PTO models)
ChargerDelco-Remy generator
Charge Rate25 amp
Brakes
Type
Mechanical, double expanding shoe, self-energizing
Dimension
14" diameter, 2" wide, 118 sq. in. area
Pedal Free Travel
3/4 inch
Hydraulic System
Lift Pump
Constant running, scotch yoke, piston-type
Max Pressure
2800 psi
Delivery
4.8 gpm at 2000 engine rpm and 1500 psi
Control
Oscillating control valve on inlet side of pump
Fluids & Capacities
| System | U.S. | Imperial |
|---|---|---|
| Fuel Tank | 10.2 gal | 8.3 gal |
| Cooling System | 10.5 qt | 8.7 qt |
| Crankcase — without filter change | 6 qt | 5 qt |
| Crankcase — with filter change | 6.5 qt | 5.4 qt |
| Transmission, Differential & Hydraulic | 8 gal | 6.7 gal |
| Power Steering Reservoir | 1 qt | 0.8 qt |
Available Tire Sizes
Front
- 5.50-16, 4-Ply, F2
- 6.00-16, 4-Ply, F2
- 6.50-16, 4-Ply, F2
- 7.50-10, 6-Ply, F3
Rear
- 12.4/11-28, 4-Ply, R1
- 13.6/12-28, 4-Ply, R1
- 14.9/13-24, 4-Ply, R1
- 18.4/15-16A, 6-Ply, R1/R3
Dimensions
| Measurement | Value |
|---|---|
| Wheelbase | 72-3/8 inches |
| Min Width — Standard / Special / Orchard | 68-7/16 inches |
| Min Width — Vineyard | 51-7/8 inches |
| Ground Clearance (14.9/13-24 tires) | 12-5/8 inches |
| Ground Clearance — Front Axle | 20-1/2 inches |
| Turning Radius w/Brakes | 9 feet |
Related Reference
- Service intervals, fluid capacities, and torque specs:Service Reference →
- Factory engine diagnostic guide:Troubleshooting Guide →
Specifications sourced directly from the factory operator's manual. Always verify with your serial number range. Iron Reference makes no warranty as to accuracy for modified or non-standard configurations.