Tom Keeling offers a limited selection of exchange Isuzu 42hp engines and rebuilding services in Alcester, Warwickshire. 

Unfortunately parts sales are no longer possible.



Quayworks is a marine engineering and light-manufacturing workshop based in Alcester, Warwickshire. 'Quayworks' is a trading name of Small Craft Services Limited which is registered in England and Wales, number 7567705. The registered address is Coniston, Alcester, B49 5DS. Tom Keeling is the Director. 

Contact email is

How to Buy?

To exchange your engine you need to email

Why Isuzu?

Isuzu marine engines are the most reliable and hard-wearing small marine engines ever produced, with a large (and heavy) flywheel that ensures exceptionally smooth running. Alternators sit either side of the crank pulley at the front of the engine, with no huge and excessive pulleys trying to destroy the end of the crankshaft. The generous width of the footprint of the engine means easy access for maintenance and a framework that does not crack with fatigue. Basically, these engines actually achieve what all other marine engines attempt to do.

Are Reconditioned Engines Any Good?


Isuzu 4LB1 and 4LC1 (35 and 42hp) marine engines - the best small engine in the marine diesel sector - are no longer in production. Isuzu workshop guidance on rebuilding is particularly detailed and exceptionally strict, and as such, providing all components on the engine remain within workshop specified limits, a properly rebuilt engine will be close to as good as new. All Quayworks rebuilds use genuine parts throughout - these are expensive but worth it for reliability. We have a stock of hard-to-find genuine parts that make rebuilding these possible. Quayworks aims to use quality genuine parts at all times, and where these are not available - for example in the marine sector where the parts are no longer in production - Quayworks manufactures them or has them manufactured, in England, to original (or higher) specifications. 

Quayworks invites all customers to spend as long as necessary on site checking any engine and observing a full up to temperature running trial prior to completion of purchase. You can bring your own engineer or fitter - any inspection is welcome. 

Quayworks currently has rebuilt Isuzu marine engines in hire fleet and private use, and industrial units in excavators and generators. 

Do I get a Guarantee?


Small Craft Services Ltd is run by Tom Keeling, a well known and time served professional in the marine industry. 

As a consumer, you are protected by the Consumer Rights Act 2015 which superseded the Sale of Goods Act 1979. It is your right to buy a product that works and is as described. 

Cost Comparisons?

There is no-one else in the UK specialising in this particular engine. 

Can you fit the engine?

No, this is not a service we offer, but there is a strong chance we can recommend a reputable fitter for marine installation.