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Old 11 May 2016, 12:10   #1
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New Engines How Often?

For you heavy commercial operators (or tour operators), do you have a planned engine replacement time?

ie. do you run them for 1000 hours or a season, then purchase new ones and sell the used ones, or do you run them till they give out then purchase new ones?

Also, do you ever consider purchasing a lightly used set to go on the boat versus a brand new set?

Thanks for any input!
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Old 11 May 2016, 19:12   #2
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I was recently on a crocodile tour boat which had twin Yamaha f70's which happens to be the same engine as I currently own.

Now these engines run all day at low speeds up and down an extremely silty river in the Daintree (far North Queensland ). I asked our skipper his thoughts on the engines, which by the way they had on three boats they run on tours.

The engines looked in very good condition even though they had done over 6000 hrs, at 7000hrs they are put onto one of their boats that does less tours (out of season) and then completely replaced at 10000hrs.

What's quite remarkable about doing such hours is that these engines don't get fresh water flushed and apart from 100 her services need very little maintenance.

I also have a mate who has a small punt as a service boat on the Hawkesbury river to service house boats. His yam f70 did 3000hrs in its first year and he loves the fact that they need very little maintenance in the way of servicing. Many of the house boats used to have Honda outboards which he claimed were often good up to 10000 hrs also, though most boats have moved over to Yam or Suzuki as Hondas initial purchase price and parts cost more.

And I thought I'd done a lot of hours doing 250hrs last year!!!!...but then I turn mine off once I get to my fishing or diving spots.

Jon
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Old 13 May 2016, 01:17   #3
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Another way of seeing it on here
http://www.quinquarimarine.co.uk/wp-...B_business.pdf
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Old 13 May 2016, 01:24   #4
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Based on the examples that they give then 11,349 of retained profits is not going to pay the mortgage

Perhaps you could live on the boat
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Old 13 May 2016, 01:25   #5
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No lol, but the section on outboard replacement is a pretty pragmatic view👍
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Old 13 May 2016, 02:56   #6
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Many of the government department boats (fisheries, maritime, water police etc) replace their engines at 2 yrs with 1500- 3000 hrs, these still seem to fetch a high price.

Some of my recreational fishing buddies also replace their outboards every 2-3 years, these lose very little money and often still carry some of the 5 year warranty we get on almost all outboards. This means you always have the latest outboard which is always in warranty, which is like cheap insurance against any problems if you ask me.

Jon
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Old 14 May 2016, 14:25   #7
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One big operator I used to work for used to run their engines into the ground. Some of them (etecs) had thousands of hours on and were like triggers broom. Just about the only thing that was original was the cowling. But then they had a good supply of cheap parts from a company in the states and a very good engineer that worked for them who used to keep them running. Only when the engine was totally knackered would they put a new one on. In practise this meant regular problems whilst in service. Having said all of that they're now running brand new boats and have just as many problems with new engines from a different manufacturer. Another operator I can think of replaces them when they get to a certain number of hours (couple of thousand). It's swings and roundabouts, largely dependant on how deep your pockets are. Most small operators can't afford 30k every couple of years for a new set of engines!
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Old 14 May 2016, 16:55   #8
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Replacing outboards every couple of years shouldn't cost 30000, an engine isn't worthless after a couple of years (just check out the secondhand market anywhere in the world). Modern 4 strokes especially from Yamaha and Suzuki hold their value extremely well.

Jon
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Old 14 May 2016, 17:55   #9
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Replacing outboards every couple of years shouldn't cost 30000, an engine isn't worthless after a couple of years (just check out the secondhand market anywhere in the world). Modern 4 strokes especially from Yamaha and Suzuki hold their value extremely well.

Jon
Especially well maintained commercial engines!

Even if they were reduced by 20k after 2000 hrs use, something is wrong with your business model if you haven't built the 10/hr depreciation in...

Quote:
Originally Posted by Tim M
Only when the engine was totally knackered would they put a new one on. In practise this meant regular problems whilst in service.
Quote:
It's swings and roundabouts, largely dependant on how deep your pockets are.
I'd say its more about your ability to manage your business and its risks. There's lots of small operators "playing" at running marine businesses - but if you can't afford to replace an engine pre-emptively what will you do if it fails and as well as having to shell our for a big fix (or replacement) you have downtime losing income.
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Old 15 May 2016, 02:09   #10
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Especially well maintained commercial engines!

Even if they were reduced by 20k after 2000 hrs use, something is wrong with your business model if you haven't built the 10/hr depreciation in...

I'd say its more about your ability to manage your business and its risks. There's lots of small operators "playing" at running marine businesses - but if you can't afford to replace an engine pre-emptively what will you do if it fails and as well as having to shell our for a big fix (or replacement) you have downtime losing income.
Business models and business plans are all very well, but for the small operator/one man band it is often a very hand to mouth existence especially when starting out. I've been there. If your engine goes bang and needs replacing finding 15-20k for a replacement often isn't an option.
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