PATH: Boat Building & Refitting » Boat Equipment » Propulsion » Engines » Thornycroft >

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PAGE CONTENTS:
^ Thornycroft: Introduction, History, Contact Information Link, etc.
^ Thornycroft RTR4: Overview, History, etc.
^ Thornycroft RTR4: Specifications w/Engine Duty Ratings, etc.
^ Documentation: Catalogs, Brochures, SpecSheets, OpManuals, Parts Lists, Shop Manuals, etc.
^ Forum Posts, Tech Tips & Tech Notes.
^ Publications & Media: Books, Magazines, Articles, Websites & Videos.
^ Related AEABoats Webpages (including Main Topic Page Links).
^ Discover how to become an Academy Member and gain access to additional pages and programs!
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^ Disclaimer: Use our website at your own risk. Report errors, omissions, dead links, additions, etc.
NOTES:

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See our Thornycroft webpage for company history and contact information, PLUS information about other Thornycroft Products.

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Thornycroft RTR4
Overview and History

The Thornycroft RTR4 is a four cylinder, Four-Stroke Cycle, Upright Inline, Over-Head Valve diesel marine/industrial engine. The base engine has also been marinized and marketed by _Mfr_, _Mfr_ and _Mfr_.

Below you can see an advert dating from 1953 offering the full THORNYCROFT range of that period.

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Specifications For Thornycroft RTR4
4-Stroke Cycle Diesel Marine Engines
Including Other Marinized Versions & Generators

TABLE KEY:
⊕ = Data from Multiple Sources. ⊗ = Data Not Available from Data Source. ? = …? = ¿…? = Unconfirmed.
DS = Data Source: T = Thornycroft. BD = BoatDiesel.com = …B. Wik = Wikipedia.
^ …d = Directory. …w = Webpage. …y = Years Mfr’d History. …c = Catalog. …b = Brochure. …s = SpecSheet.
^ …o = Owner’s/Operator’s Manual. …m = Service/Repair/Technical/Workshop/Shop Manual.
^ …p = Parts List. …h = History. …f = Forum. …1,2,3,A,B,C,etc = Source #, Version, Revision.
CYL = Cylinder Configuration-Number−Liner Type:
^ Cylinder Configuration: u… = Upright (Vertical). S = Single Cylinder. I = In-Line.
^ Liner Type: W = Wet Liner(s). D = Dry Liner(s). WD = Combo Wet+Dry Liners. S = Sleeved (Press fit?).
^ ^ C = Independent Cylinder(s). P = Parent/Native Bore (Borable Oversize).
^ ^ Liner type sometimes had to be determined from Shop Manual and/or Parts List.
BORE & STROKE: …mm = Millimeters. …in = Inches = …”.
DISPLACEMENT: …cc = Cubic Centimeters (cm³). …L = Liters (Litres). …ci = Cubic Inches (in³).
⇑ = Base Engine Manufacturer. ⇒ = Engine Marinizer (Mariniser).
MODEL: EC = Engine Code. Cylinder Block Capacity ID Code. TC = Turbocharged.
RATING: See the Engine Duty Ratings at the end of the table.
ASP-F: Aspiration-Fueling: N = Naturally Aspirated. T = Turbocharged. S = Supercharged.
^ Diesel: M = Mechanical Injection. I = Integral Injector. C = Common Rail. E = …e = Electronic Injection.
POWER: kW = Kilowatts. HP = Horsepower. BHP = Brake Horsepower. MHP = Metric Horsepower.
@RPM = Power Ratings @ Revolutions Per Minute.
YEARS MFR’d: Beginning-Ending. Trailing “–” (Dash) without an Ending Date = Still in Production (BOLD).

Click on Model Links below for other Model Pages. Click on Data Source Links for Catalogs, Brochures, SpecSheets, Operator’s Manuals, Shop Manuals, etc.

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NOTES:

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Thornycroft Engine Duty Ratings

Con = Continuous (Commercial)

Int = Intermittent (Pleasure Craft)

Gen = GenSet = Generator (Constant Speed)

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Documentation

If you can help us add information, Catalogs, Brochures, Spec Sheets, Pictures, OpManuals, Parts Lists, Shop Manuals, etc. that we lack, please submit the info or link in the Comment Box below, or attach the PDF to an email to the Editor♥EverythingAboutBoats.org (Replace “♥” with “@”). Thanks!

Go to _Mfr_, _Mfr_ and _Mfr_ webpages for additional documentation!

Catalogs:

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Brochures:

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SpecSheets/Data Sheets:

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Charts and Graphs:

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Pictures:

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Press Releases (by Date = YYMMDD):

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Model History:

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Serial Number Guide – Manufacture Date Code Identification:

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Engine Replacement Guide

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Installation Instructions/Manuals:

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Installation Diagrams & Drawings with Dimensions:

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Owner’s/Operator’s Manuals:

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Parts Schematics with Exploded Views & Parts Lists:

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Parts Bulletins:

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Repair/Service/Technical/Workshop/Shop Manuals:

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Wiring Diagrams:

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Service Bulletins:

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Product Recalls:

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Forum Posts, Tech Tips & Tech Notes

If you think we should add a Forum Post, Tech Tip or Tech Note to this webpage,
please submit the Link in the Comment Box below or via email to
the Editor♥EverythingAboutBoats.org (Replace “♥” with “@”). Thanks!

More Forum Posts, Tech Tips & Tech Notes may be found at Propulsion Machinery, Engines,
DIY: Propulsion Machinery, DIY: Engines, and the main AEABoats _Mfr_ webpage.

Forum Posts:

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Tech Tips:

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Tech Notes:

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If you think we should add a Book, Magazine, Article, Website & Video to this webpage,
please submit the Link in the Comment Box below or via email to
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More Books, Magazines, Articles, Websites & Videos may be found at Propulsion Machinery, Engines,
DIY: Propulsion Machinery, DIY: Engines, and the main AEABoats _Mfr_ webpage.

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Magazines:

• The ANCHOR (Anchors Aweigh Academy)
• DIY_Boat_Owner – The Marine Maintenance Magazine
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Websites:

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Related AEABoats Webpages

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