Manuals for Leyland Diesel Engines

(including LDV and Leyland Daf)

Dennison Berwick at launch of Marine Diesel Basics 1 in Toronto, Canada

(Message me via Live Chat if don't find what you are looking for, or have old manuals to share to help other sailors.

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3 simple steps to make your diesel system reliable and robust

STEP ONE  - Get the manuals for your equipment

Owner, Workshop and Parts Manuals are important documents that should be part of every vessel's library. They contain the detailed information necessary for safe operation, maintenance and correct servicing.  

The manuals on this page are provided for public information and education and can be downloaded for free.  All copyrights belong to copyright holders stated in the documents.

congratulations - by downloading these free manuals you are taking an important step towards making your engine more reliable and robust.


STEP TWO - regular maintenance

Simple, regular maintenance is the easiest, quickest and cheapest way to avoid problems and accelerated engine wear. Most expensive repairs start from a lack of basic maintenance or ignoring small warnings. The work is not difficult - it just needs to be done.

The purpose is so that we can enjoy our boat for all the reasons we bought her. Trust yourself. Do the work regularly and be methodical.


Download free checklists here

if you need clear, easy-to-understand help

300+ drawings

Seeing is Understanding

Marine Diesel Basics 1
Maintain, Winterize and Recommission

•  explains all parts of the marine diesel system - fuel,
lubrication, breathing, electrics, stern gland, propeller etc.
•  140+ tasks, 300+ drawings, 222 pages
•  tasks are fully explained with clear drawings and minimal text
•  all tools & supplies needed are illustrated for each task
•  paperback US$15.99 £10.99 €12.99
•  ebook (kindle, kobo, ibooks, google, epub) US$9.99


STEP THREE - keep a Maintenance Logbook

Keep a detailed and accurate record:

  1. all the work done on your diesel system - what, when  & by who
  2. inventory of serial numbers, component descriptions
  3. early warning of potential problems
  4. time and details of any changes in performance

Use a notebook or use your iPad, tablet or desktop and record the information in an editable PDF directly as you work.

click to enlarge

Maintenance eLogbook

If you've every struggled to keep a logbook, this editable eLogbook may be exactly the help you need.

- "fillable form" PDF
- clickable checklists
- write, edit  details of all tasks completed
- 40+ drawings to help inspections
- all common measurements with live calculators
- just $7.99 196 pages

"the Perfect Logbook" - verified purchaser


Leyland AEC A471 diesel engine Service manual

Service Manual

AV 471
AV 505

manual for complete vehicle with sections about the engines.


304 pages
publ. August 1969

14 MB file

Leyland 50D Diesel Engine Repair operation manual

Repair Operation Manual

50D  1.5 Litre

33 pages
publ. 1980


5 MB file

Leyland 38 TD diesel engine Service Manual

Engine Service Manual

4/98 NT


71 pages
publ. - no date given


6 MB file

LDV 1.8 Diesel Engine Service Workbook

Service Workbook

1.8 Diesel Engine

built by Leyland Daf


42 pages
publ. 1990


3 MB file

LDV 2.5 DI Diesel Engine Service Workbook

Service Workbook

2.5 DI  Diesel Engine

built by LDV (Leyland Daf)


125 pages
publ. 1997


6 MB file

Thornycroft BMC Leyland Common Spares List

List of Common Spare Parts for Leyland, BMC and Thornycorft diesel engines

Leyland 2.25
Leyland 2.50


1 page
publ. - no date given

< 1 MB file

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