AN INSIGHT INTO NZ’S UNIQUE MARINE ENGINES – Part Six
Todays WW story follows on from earlier stories – link below to Part One, Two, Three, Four and Five 
As per pervious stories in the series the content has been pulled together by Ken Ricketts and ‘polished’ byPatrica and Ken’s daughter Corinne Pettersen. As always we have endeavoured to be as factual as possible but there will always by matters others will either know more about or be able to correct errors – so woodys do not hold back in commenting.

PART ONE – https://waitematawoodys.com/2025/04/04/an-insight-into-nzs-unique-marine-engines-part-one/

PART TWO – https://waitematawoodys.com/2025/04/12/an-insight-into-nzs-unique-marine-engines-part-two/

PART THREE – https://waitematawoodys.com/2025/04/18/an-insight-into-nzs-unique-marine-engines-part-three/

PART FOUR – https://waitematawoodys.com/2025/04/26/an-insight-into-nzs-unique-marine-engines-part-four/

PART FIVE – https://waitematawoodys.com/2025/05/03/an-insight-into-nzs-unique-marine-engines-part-five/

BENZ DIESEL ENGINE – BENZ OM59 55HP 4CYL DIESEL ENGINE PROBABLY SIMILAR TO THAT IN THE MANUNUI

MANUNUI WITH HER 55HP 6 CYL BENZ DIESEL ENGINE DURING WWII

MANUNUI AS BUILT AT SPEED WITH HER BENZ DIESEL ENGINE 

The MANUNUI was built for Percy Colebrook in 1939 by Bill Couldrey and had a medium / slow revving 6 cylinder 55 hp Benz Diesel engine fitted when built, which she retained until 1963 when it was replaced by a 100 hp Perkins Diesel. 

CRUSADER V8 MARINE PETROL ENGINES

TWIN CRUSADER ORIGINAL V8 PETROL ENGINES HAVING SERVICING, FROM THE RIVA TRITONE “LOLA,” WHICH ARE STILL IN HER TODAY. 

Crusader engines, while major marine engine suppliers in America and other countries, have only made a cameo appearance in New Zealand, with only a handful of these lovely engines in use here, as far as I can ascertain.

Overview: The only craft I personally know of for certain is the stunning 1962 Italian-built Riva Tritone, LOLA.

However, WINSOME II may have had one, back around the 1950s when owned by Andy Donovan. I know her previous Chrysler 8-cylinder inline engine was replaced around that time by a V8, that was either a Crusader, Chris-Craft, or Flagship. However, the memory banks have failed me, making it impossible to determine which of the three it is, so come on, you WINSOME II experts, help me out here!

In the 1960s, Crusader Marine Engines was a prominent brand worldwide, providing inboard power for many boats, particularly cruisers and sport fishermen. They were known for their premium quality and reliability, used by leading boat manufacturers like Chris-Craft. 

Crusader engines were based on standard automotive engines, but were marinized for marine use, with many of them based on Ford engines, and later with Hercules and Chrysler base units.

LOLA WITH HER 2 X CRUSADER 270HP PETROL ENGINES 

LOLA, the 1962 Italian-built Riva Tritone Aperto, has a LOA of 27 ft and is one of only 15 in the world. 

It is believed to be the only original Riva in New Zealand and a stunning example of boat restoration, all completed in NZ. Only 3,000 Rivas were built between 1950 and 1966, and she still has her original engines. She lives, or did live, in her own, purpose built, fully air conditioned boat shed, on the banks of the Marlborough Sounds.

WINSOME II – MAY HAVE HAD A CRUSADER V8 PETROL ENGINE IN THE 1950s /60s ERA – POSSIBLE ALTERNATIVES ARE FLAGSHIP & CHRIS CRAFT 

CHRIS CRAFT PETROL ENGINES.

CHRIS CRAFT 1950s 6 CYL FLATHEAD PETROL 135hp ENGINE SIMILAR TO THAT IN THE GLENIFFER IN THE 1950s

These are another brand of engine that is sold in huge numbers worldwide, particularly in America, where all genuine Chris-Craft boats are built. However, they have only made a cameo appearance in New Zealand, with most of them coming here in imported Chris-Craft boats.

There are a few New Zealand-built boats that have or have had them. I have only ever seen a petrol version, although naturally, they do produce diesel engines in their lineup. All the engines they produce are based on other major engine manufacturers’ base engine blocks and are marinized by them. Hercules is a major engine block supplier to them.

GLENIFFER WITH HER CHRISCRAFT 6 CYL FLAT HEAD PETROL ENGINE RUNNING ON KEROSENE IN THE 1950s – OWNER PERCY JENNINGS IS AT THE HELM.

Input copied from previous post, ex Harold Kidd.  – “Trevor Davis sold GLENIFER to P J Jennings of Paeroa in 1937 and he sold her to George Manktelow of Paeroa in about 1959. The Gleniffer was replaced by a 6-cyl Chris Craft (Hercules block) during the 50s, converted to run on power kerosene with a Model A Ford Zenith carb.”

FLAGSHIP MARINE ENGINES

FLAGSHIP 1958 250HP V8 PETROL MARINE ENGINE – BASED ON A CHEV BLOCK

There were a number of these engines that found their way to NZ in the 1950s/60s era and this is one of the possibilities for the V8 engine that was installed in the WINSOME II in that era by Andy Donovan who may also have had an agency for them, around that time.