The Fordson Major, Power Major and Super Major are among the best-known British tractors of the post-war period. Strong, simple and built in large numbers, they became a familiar sight on farms throughout Britain and many export markets and remain popular restoration tractors today.
This guide covers the main E1A-based Fordson Major family in general. Production changes, export versions, live-drive equipment, hydraulic arrangements and engine details vary, so exact model and serial identification should come before ordering parts or using service specifications.
1. The E1A Fordson Major Family
The post-war Fordson Major range developed through several important stages, commonly recognised as:
- Fordson Major
- Power Major
- Super Major
The tractors share a broad design lineage but should not be treated as mechanically identical.
2. Fordson Major
The Fordson Major established the basic layout of the family:
- Large four-cylinder engine
- Heavy-duty rear transmission and axle
- Three-point hydraulic linkage
- Robust mechanical construction
3. Power Major
The Power Major introduced a range of improvements and became a well-known development of the original Major.
Changes affected areas such as:
- Engine specification
- Hydraulics
- Instrumentation
- Operator controls
- General detail design
4. Super Major
The Super Major was the later and more developed version of the family.
Depending on production period and specification, it may include refinements to:
- Hydraulic control
- Braking
- Transmission/PTO arrangements
- Operator equipment
5. Identification Before Restoration
Do not rely only on bonnet badges, paint or grille style.
Record:
- Serial number
- Engine number
- Major casting numbers
- Transmission/PTO details
- Hydraulic-control layout
Engines, bonnets, rear axles and hydraulic parts may have been exchanged during decades of farm use. Identify the actual components fitted before ordering expensive parts.
6. Diesel Engine
Diesel versions are especially common and are known for their strong low-speed pulling ability.
When assessing an engine, check:
- Cold starting
- Oil pressure
- Blow-by
- Exhaust smoke
- Coolant condition
- Fuel-system leaks
7. Petrol and Other Fuel Versions
Some markets and production periods used alternative fuel versions.
Do not assume every Major-family tractor uses the same cylinder head, ignition, fuel or compression specification.
8. Diesel Fuel System
Mechanical diesel injection systems require:
- Clean fuel
- Correct filters
- No air leaks
- Correct injection timing
- Serviceable injectors
9. Hard Starting
Before condemning the injection pump, check:
- Battery and starter speed
- Compression
- Fuel supply
- Air in system
- Cold-starting equipment
- Injection timing
10. White Smoke During Starting
White smoke may indicate fuel is reaching the cylinders but not burning correctly.
Possible causes include:
- Low compression
- Slow cranking
- Incorrect timing
- Cold engine
- Poor injector spray
11. Engine Oil Pressure
Low oil pressure when hot may indicate:
- Bearing wear
- Oil-pump wear
- Relief-valve leakage
- Incorrect oil
Confirm with the proper pressure test before dismantling.
12. Cooling System
Inspect:
- Radiator core
- Water pump
- Fan belt
- Hoses
- Thermostat where fitted
- Internal scale and corrosion
Old cooling systems can be internally restricted even when the radiator looks good externally.
13. Gearbox
The Major family uses a strong manual transmission, but age-related wear is common.
Check for:
- Bearing rumble
- Gear whine
- Jumping out of gear
- Selector wear
- Water contamination
14. Gear Selection
Difficult selection may be caused by:
- Clutch drag
- Selector wear
- Worn linkage
- Internal gear wear
15. Clutch
Common clutch complaints include:
- Slipping
- Dragging
- Stuck clutch after storage
- Release-bearing noise
16. Live Drive
Some Major-family tractors were fitted with live-drive arrangements that differ from a basic single-clutch tractor.
Before clutch or PTO work, identify the exact transmission and clutch specification.
17. PTO System
The PTO arrangement can vary with specification.
Check:
- PTO engagement
- Shaft condition
- Clutch relationship
- Oil leakage
- Guarding
18. PTO Will Not Stop
Possible causes include:
- Clutch adjustment
- Warped clutch plate
- Internal clutch fault
- Linkage problem
19. Hydraulic Three-Point Linkage
The linkage system is central to the tractor’s usefulness.
Common faults include:
- Will not lift
- Lifts slowly
- Drifts down
- Hunts
- Fails to respond correctly to controls
20. Hydraulic Oil Condition
Old tractors frequently suffer from contaminated transmission/hydraulic oil.
Check for:
- Milky appearance
- Sludge
- Metal debris
- Incorrect oil type
21. Linkage Will Not Raise
Before dismantling, check:
- Oil level
- Pump drive
- Control linkage
- Filter/strainer where applicable
- Internal leakage
22. Linkage Drifts Down
Possible causes include:
- Lift-cylinder leakage
- Control-valve leakage
- Check-valve leakage
23. Remote Hydraulics
Many Majors were later fitted with:
- Loader valves
- Tipper connections
- Auxiliary spool valves
Added hydraulic equipment is not always original, so trace the actual pipework before diagnosis.
24. Steering
Common front-end wear areas include:
- Steering box
- Drag links
- Track rods
- Kingpins
- Front axle pivot
25. Front Axle Pivot
Heavy loader use can wear the centre pivot and steering components.
Excessive wear may cause:
- Axle movement
- Poor steering
- Uneven tyre wear
26. Brakes
Brake design and detail vary by model and production period.
Check:
- Both pedals operate evenly
- Linkage is free
- No oil contamination
- Braking force is balanced
27. Final Drives and Rear Axle
Listen for:
- Bearing rumble
- Gear noise
- Knocking under load
Check for oil leakage around:
- Half shafts
- Hub/final-drive areas
- Brake housings
28. Electrical System
After many decades, wiring is often far from original.
Possible modifications include:
- Alternator conversion
- Polarity change
- Different starter switch
- Non-original lighting
- Additional accessories
29. Before Rewiring
Identify:
- Actual charging unit fitted
- System voltage
- Earth polarity
- Starter arrangement
- Existing safety switches
30. Common Long-Storage Problems
- Stuck clutch
- Water in transmission oil
- Seized brakes
- Corroded fuel tank
- Blocked fuel filters
- Perished hoses
- Electrical corrosion
- Tyre deterioration
31. Water Contamination
Milky oil is common after outdoor storage.
Possible entry points include:
- Gear-lever boots
- Breathers
- Damaged seals
- Condensation
32. Before First Start After Long Storage
- Confirm engine turns freely.
- Check engine oil and coolant.
- Clean fuel supply.
- Inspect air intake.
- Check transmission/hydraulic oil.
- Check throttle and stop controls.
- Inspect wiring and battery cables.
- Check brakes before driving.
33. Buying a Fordson Major Family Tractor
Check:
- Identity and serial numbers
- Cold starting
- Oil pressure
- Blow-by
- Gearbox noise
- Clutch operation
- PTO operation
- Hydraulic lift performance
- Steering play
- Brake condition
34. Signs of Mixed Components
Common clues include:
- Later bonnet on earlier chassis
- Different engine number range
- Changed hydraulic controls
- Replacement rear axle or transmission
- Modernised electrics
A mixed tractor can still be perfectly usable, but parts identification becomes more important.
35. Restoration Order
- Identify model and major components.
- Make engine and cooling system reliable.
- Repair brakes and steering.
- Repair clutch, gearbox, PTO and hydraulics.
- Repair wiring and charging.
- Only then concentrate on paint and cosmetics.
36. Workshop Checklist
| System | Check |
|---|---|
| Identification | Major, Power Major or Super Major confirmed. |
| Engine | Cold start, smoke, oil pressure and blow-by. |
| Cooling | Radiator, pump, belt and hoses sound. |
| Transmission | All gears select; no serious noise. |
| Clutch/PTO | No slip or drag; PTO operates correctly. |
| Hydraulics | Linkage raises, controls and holds. |
| Steering | No unsafe play. |
| Brakes | Both sides effective and balanced. |
| Electrics | Actual charging/polarity system identified. |
Related Agrimanual Manuals
- Search Agrimanual Fordson Major manuals
- Search Agrimanual Power Major manuals
- Search Agrimanual Super Major manuals
- Request a Fordson manual if the exact version is not listed
Frequently Asked Questions
Are Fordson Major, Power Major and Super Major parts all interchangeable?
No. They share a common design family, but production changes affect engines, hydraulics, transmission, brakes and other components.
How can I identify which Major I have?
Use serial and engine numbers together with the actual hydraulic, transmission and sheet-metal details. Do not rely on decals alone.
Why does the hydraulic linkage work cold but weaken when hot?
Oil thinning can reveal pump wear or internal leakage. Use the correct hydraulic test procedure before replacing the pump.
Why is the gearbox oil milky?
Water contamination from outdoor storage, damaged boots, breathers or condensation is common on older tractors.
Should I assume the electrical system is still original?
No. Many tractors have been converted to alternators or altered polarity, so identify what is actually fitted before troubleshooting.
The Fordson Major family remains popular because it combines straightforward engineering with real working ability. The main challenge today is not complexity but identifying decades of production changes and previous repairs correctly.