Information

A new section on ‘Dry disc brake servicing and repair’ has been added to help owners to get the best from their brakes, plus;

Many more pages of practical information.  Check out the New and Revised pages for recent additions.

Nuffield, Leyland and Marshall Tractor Specifications – Click onto the MASTER PAGE and download the required Specification.

Cylinder Liner Cavitation (Pitting) information. This is a reproduced version of a 1970′s Caterpillar publication. It covers Question and Answers on the subject. Click Here to download

New – Nuffield and Leyland crankshaft endfloat. Following information supplied by Dave Morgan please scroll down to the bottom of this page for details.

Simply click on the RED HIGHLIGHTED link to download your chosen page which is saved as a PDF (Portable Document Format) file.

Acrobat Reader
To read the PDF pages you MAY need to download Adobe Acrobat Reader - Click Here to get your free download. 

Brief specifications for Nuffield, Leyland and Marshall tractors. There will be overlapping years in articles 1 through 10 due to model introduction dates

1.  1948 to 1961, models; M4, M3, MV3, DM4, PM4, PM3V, Universal Three & Universal Four  -  Click Here  to download.

2.  1961 to 1968, models; 3/42, 4/60, 10/42, 10/60 & Mini - Click Here to download

3.  1967 to 1972, models; 3/45, 4/65, 4/25, 344 & 384 - Click Here to download

4.  1969 to 1979, models; 154, 253 & 245 - Click Here to download

5.  1972 to 1978, models; 255, 270, 285, 2100, 485 & 4100 - Click Here to download

6.  1975 to 1980, models; 262, 272, 245 Synchro, 262 Synchro, 272 Synchro, 285 Synchro & 2100 Synchro - Click Here to download

7.  1978 to 1981, models; 462 Synchro, 472 Synchro, 282 Synchro, 482 Synchro, 235 – Click Here to download

8.  1980 to 1982, models; 502, 602, 604, 702, 704, 802, 804, 302 – Click Here to download

9.  1982 to 1989, Marshall models, 502, 602, 604, 702, 704, 802, 804, 302, 132 – Click Here to download

10.  1984 to 2003, Marshall models, 904XL, 100, 752/754, 852/854, 954. Marshall Steyr models; S-542/544, S-642/644, 744. JWD Fieldmaster models; 274/474, 284/484, 294/494 – Click Here to download

Nuffield and Leyland Tractor Diesel Engine Problems – Trouble Shooting – Click Here to download

Tractor Factory Tour - Click Here to download

Last chassis numbers for Bathgate Built Leyland TractorsClick Here to download

Lubrication Chart and Recommended Lubricants for Universal Three Nuffield Tractors – Click Here to download

Lubrication Chart and Recommended Lubricants for Universal Four Nuffield Tractors – Click Here to download

Lubrication chart for 344 and 384 Leyland Tractors - Click Here to download

Lubrication chart for 245 Safety Cab Leyland Tractor - Click Here to download

Lubrication chart for 262 and 272 Safety Cab Leyland Tractors - Click Here to download

Lubrication chart for 462 and 472 Safety Cab Leyland Tractors - Click Here to download

Lubrication Chart for 604, 704 and 804 QM cab Leyland Tractors – Click Here to download

Lubrication Chart for 604, 704 and 804 Explorer cab Leyland Tractors - Click Here to download

Lubricants and Fluids for 500, 600, 700 & 800 range Leyland Tractors - Click Here to download

Maintenance Schedule for 500, 600, 700 & 800 range Leyland Tractors – Click Here to download

Lubrication Chart and Recommended Lubricants for 10/42 & 10/60 Nuffield Tractors - Click Here to download

Lubrication Chart for 502 QM cab Leyland Tractors – Click Here to download

Lubrication Chart for 602, 702 and 802 QM cab Leyland Tractors - Click Here to download

Lubrication Chart for 602, 702 and 802 Explorer cab Leyland Tractors – Click Here to download

Lubrication Chart for 285 and 2100 Leyland TractorsClick Here to download

Leyland Middleweight Hydraulics - Control linkage adjustments - Click Here to download

Leyland Middleweight Hydraulics - High pressure relieve valve adjustment – Click Here to download

Leyland Middleweight Hydraulics – Hydraulic fault diagnosis – PTO mounted pump - Click Here to download

Leyland Middleweight and Heavyweight Hydraulics – Hydraulic fault diagnosis – Engine mounted pump – Click Here to download

Have you ever scratched your head trying to remember what the engine valve adjusting sequence is? - Click Here to download the answer to your problem

We get a number of questions relating to model numbers and what do they mean – Click Here to download a breakdown of the numbers

Paint Codes - Following many requests we are now able to give the paint codes for Nuffield and Leyland colours - Click Here to download, please note that these codes are, at the moment, unverified.
Bailey paints can now supply Nuffield Orange paint at £45.82 for 5 litres plus carriage of about £6.00, also Leyland Dark Blue. They can be contacted on 01453 882237 or www.baileypaints.co.uk

Main Torque Settings for Leylands - Click Here to download the Torque Settings for Middleweight and 154 Lightweight tractors. - Click Here to download the Torque Settings for Heavyweight tractors and Torque Settings for standard Unified and Metric nuts and bolts

Main Torque Settings for Old Nuffields - Click Here to download

Main Torque Settings for 10/42, 10/60, 3/45 and 4/65 Nuffields – Click Here to download

We get many questions regarding the 11 in Double Clutch. In this four part series you will find all the details that you need to successfully overhaul your clutch – Part 1; Double Clutch RemovalPart 2; Double Clutch Re-Assembly and AdjustmentPart 3; Clutch Pedal Adjustment - Part 4; PTO Engagement Lever Adjustment.

Hydraulic Brake and Clutch bleeding also Brake adjustment - Click Here to download

New – Self energising Dry Disc BrakesThese brakes were fitted from 1964, on Nuffield 10/42 & 10/60 tractors, up until 1980 when Oil immersed Wet Disc Brakes were introduced on the Leyland Middleweight range of tractors. Many makes of tractor used these brakes during the ‘60’s & 70’s. For optimum braking effort they need to be maintained in good order. This guide to “Servicing & Repairing Nuffield and Leyland Tractor Dry disc brakes” will help you to keep your brakes in perfect working order.Click Here to download

Simms Minimec Fuel Injection Pump timing - Click Here to download

Simms Minimec Fuel Injection Pump timing tool diagramClick Here to download

Wiring Diagrams – With the passage of time the electrical systems of tractors start ‘Playing’ up, eventually the whole tractor will require rewiring to return reliability. Here’s a series of wiring diagrams covering almost all Nuffields and Leylands from 1948 to 1982. Just click on the link to download.
Nuffield 4M, 4PM, 4DM, 3DL, 342 and 460 tractors ’Manual’ start – Click Here
Nuffield 4M, 4PM, 4DM, 3DL, 342 and 460 tractors ‘Solenoid’ start – Click Here
Nuffield 10/42 tractor - Click Here
Nuffield 10/60 tractor - Click Here
BMC Mini tractor - Click Here
Nuffield 3/45 and 4/65 tractors ‘Dynamo’ - Click Here
Nuffield 3/45 and 4/65 tractors ‘Alternator’ – Click Here
Leyland 154 tractor ‘Diesel’ – Click Here
Leyland 154 tractor ‘Petrol/Gas’ – Click Here
Leyland 344 and 384 tractorsClick Here
Leyland 285 and 2100 tractorsClick Here
Leyland Middleweight Q cab tractors – Click Here

Leyland Middleweight QM cab tractors - Click Here
Leyland Middleweight Explorer cab tractors - Click Here

Biodiesel - Is it a Saviour for the world in reducing Carbon Dioxide emissions or is it a Curse which is forcing world food prices upwards by reducing the amount of food crop arable land? Is Biodiesel a cost effective alternative to ‘Normal’ diesel fuel? This discussion paper looks at all the pro’s and con’s of the subject. Click Here to download.

Sulphur Free Red Diesel – New EU regulations on the sulphur content of red diesel come into force in January 2011. How will it affect your classic tractor? Read this article to find out. Click Here to download.

Nearly all new tractors are submitted to the University of Nebraska in the USA for Drawbar Pull, Engine Power and Fuel Consumption tests. The test reports for Nuffield and Leyland Tractors are now available for download – Click Here for the download links.

New –Nuffield and Leyland crankshaft end-float and thrust washers. Thrust washers on Nuffield & Leyland crankshafts are now only available in standard size. Therefore to get the required gap carry out the following procedure; assemble the crankshaft with the thrust washers in place, check the gap by using a set of feeler gauges, the gap should be 0.006 to 0.010 in (0.15 to 0.25 mm). If it is more than this remove the crankshaft and remove the two gears. The front face of the number one crankshaft main bearing journal should then be machined to give you the required gap. This machining allows the two gears to be positioned further on to the crankshaft to reduce the gap. For example if the gap is 0.015 in (0.38 mm) you need to remove 0.005 in (0.13 mm) from the shaft.

More pages will be added on a regular basis. Please keep looking!

Posted by John  February 7th, 2013