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Diesel engines (again)


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#21 Chrisc

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Posted 16 February 2018 - 06:31 PM

6 cylinder 4 cylinder why dont they build 3 or 5 cylinders? take the diahatsu car smooth running being 3 pistons so I can see no problem with a 5 ?what I can gather the 3 works well because of balance.

Very true.
The 3 cylinder 29hp diesel in my H28 was silky smooth. At anything over idle revs it didn't need engine mounts - it would have just sat there on the bearers.
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#22 wheels

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Posted 16 February 2018 - 06:35 PM

 

Personally I wouldn't touch a marinised ford with a barge pole, some people like them (affectionately known as a bus engine) but can give problems if not used properly.

Possibly the most common engine out there. A grand workhorse and will run reliably clocking up huge hrs. The cheapest to rebuild if you ever need and heaps of different manufacturers around the world that made the parts to marinize them, so parts available everywhere. The famous name in NZ is Lees and the guys that took the Ford and commercially Marinized it for the World is Lehman Mfg in New Jersey, whom used the Ford UK engines.
There are many versions of 4cyl and 6cyl engines. And I do have to say, I have come across a couple of Boats that in fact did have old Ford Bus engines in them.
Just not as refined as the more modern day engines of course.

harrytom, yes you can buy engines of just about every cylinder number. 1, 2, 3, 4, 5, 6, 8, 10, 12, 16. I do not know of anything with 7, 11, 13, 14, 15, 17, or greater in number.

 


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#23 Priscilla II

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Posted 16 February 2018 - 07:04 PM

Yes, that's the juggling act. We are looking at boats 10-12 metres , around 10 tons with preferably not more than 80hp. That HP is really too much for the french canals where the speed limit is around 6km/hr. The problem is that in order to get from one canal system to another you are obliged to travel for quite some distance on the Rhone where the current is 2-3 knots and often up to 5knots if it's been raining. The Rhone valley is also subject to the mistral so you may find yourself punching into 40+knots of headwind. The juggling act is trying to get an engine that will cope with both scenarios.

This looks tidy and has a new engine.

https://www.trademe....x?id=1511077598

Nl7e8Rv.jpg


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#24 Island Time

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Posted 16 February 2018 - 07:29 PM

They do. There are quite a few 3 cylinder engines (my Volvo 2003t is one), and a few 5 cylinder units as well. Mercedes and Audi come to mind.
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#25 darkside

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Posted 16 February 2018 - 07:43 PM

Yes and sadly the Alfa Romeo 5 cylinder diesel. Quite a good car engine probably but a pig when converted to marine use by FNM. I know as I owned a couple. Then a couple more when they blew up. Then the next owner of that vessel also bought a couple more I understand. The Yanmar 3 cylinder 3JH2E is a pretty good unit though.


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#26 Fish

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Posted 16 February 2018 - 07:47 PM

6 cylinder 4 cylinder why dont they build 3 or 5 cylinders? take the diahatsu car smooth running being 3 pistons so I can see no problem with a 5 ?what I can gather the 3 works well because of balance.

 

I've got a 3 and a 5 (and one 4 as well, but that is a hybrid)

3 cylinder Izuzu 38 Hp in the boat, 5 cylinder 2.5 l petrol in the family car

 

I'd far prefer 6 over 3 in the boat, the comments on smooth and quiet are irritating me as much as the noise and vibration from my 3 cylinder...


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#27 Chrisc

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Posted 16 February 2018 - 08:26 PM

This looks tidy and has a new engine.
https://www.trademe....x?id=1511077598
Nl7e8Rv.jpg

She is a nice looking boat but unfortunately 1.3m draft. This means that canals like the Midi and the Nivernais are off limits due to draft restrictions. We have a penchant for these smaller waterways as they tend to be prettier and almost devoid of traffic compared with the bigger tourist routes.
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#28 Willow

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Posted 16 February 2018 - 08:48 PM

Possibly the most common engine out there. A grand workhorse and will run reliably clocking up huge hrs. The cheapest to rebuild if you ever need and heaps of different manufacturers around the world that made the parts to marinize them, so parts available everywhere. The famous name in NZ is Lees and the guys that took the Ford and commercially Marinized it for the World is Lehman Mfg in New Jersey, whom used the Ford UK engines.
There are many versions of 4cyl and 6cyl engines. And I do have to say, I have come across a couple of Boats that in fact did have old Ford Bus engines in them.
Just not as refined as the more modern day engines of course.

harrytom, yes you can buy engines of just about every cylinder number. 1, 2, 3, 4, 5, 6, 8, 10, 12, 16. I do not know of anything with 7, 11, 13, 14, 15, 17, or greater in number.

 

 

Yep that's the one Lees marine, horrid piece of sh*t if you ask me, but just from my own experience. Would much prefer a more modern design.

 

Run a 3 cylinder 3jh2 in our cruising boat lovely engine not as quiet as the 3ym in the race boat but starts first time every time and just goes and goes. Pretty common in the charter fleet just have to keep an eye on the exhaust elbow.


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#29 Chewing Gum

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Posted 05 March 2018 - 08:12 PM

In the day those lees Ford 6 cyls were pretty good. Would easily do 10,000 or more hours without being touched (from personal experience) non turbo 90 to 120 hp


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#30 harrytom

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Posted 06 March 2018 - 08:21 AM

The old man changed out the 100hp ford non turbo for a 180? Turbo.nothing but trouble.
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