Repowering 371 - any experiences?

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   I am considering changing my Volvo Penta MD2040 with a new engine. I would prefer to have a new engine that is not a Yanmar or a Volvo Penta, but rather a Mitubishi-based block (Craftsman/Vetus/Sole) or Kubota-based (Nanni or Beta). I have a new VP S130 saildrive that I am planing on using in the new installation.

I have my hands on a Craftman 4.42, and the saildrive should fit directly onto it. But I realize that the exhaust outlet is approximately 80mm further aft compared to the MD2040. The wall between the engine room and aft cabin (two-cabin version) is pretty close to the exhaust of the MD2040, so this will probably be a concern. Also the overall length of the engine is approximately 80mm more, measuring from the adapter plate to the front of the engine.

Have any of you repowered your Hanse 371? What did you install, and were there any issues regarding space, connections etc.?

Craftsman:

MD2040:

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Joakim Members Profile Send Private Message Find Members Posts Add to Buddy List Sub Lieutenant Joined: 13 May 2018 Status: Offline Points: 3	Post Options Post Reply Quote Joakim Report Post Thanks(0) Quote Reply Topic: Repowering 371 - any experiences? Posted: 30 July 2023 at 21:03
	I am considering changing my Volvo Penta MD2040 with a new engine. I would prefer to have a new engine that is not a Yanmar or a Volvo Penta, but rather a Mitubishi-based block (Craftsman/Vetus/Sole) or Kubota-based (Nanni or Beta). I have a new VP S130 saildrive that I am planing on using in the new installation. I have my hands on a Craftman 4.42, and the saildrive should fit directly onto it. But I realize that the exhaust outlet is approximately 80mm further aft compared to the MD2040. The wall between the engine room and aft cabin (two-cabin version) is pretty close to the exhaust of the MD2040, so this will probably be a concern. Also the overall length of the engine is approximately 80mm more, measuring from the adapter plate to the front of the engine. Have any of you repowered your Hanse 371? What did you install, and were there any issues regarding space, connections etc.? Craftsman: MD2040:

sgrhma2 Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 20 November 2021 Location: Northern Irelan Status: Offline Points: 271	Post Options Post Reply Quote sgrhma2 Report Post Thanks(0) Quote Reply Posted: 30 July 2023 at 22:35
	I’m interested in what you’re proposing, but is there a particular reason why you’re considering re- engining your boat? Are you seeking a particular performance / capability or is there a specific issue with you existing power plant? Simon

Joakim Members Profile Send Private Message Find Members Posts Add to Buddy List Sub Lieutenant Joined: 13 May 2018 Status: Offline Points: 3	Post Options Post Reply Quote Joakim Report Post Thanks(0) Quote Reply Posted: 01 August 2023 at 21:17
	I am happy with the power of the existing engine installation. Apart from the regular exhaust bend issue, it has been great. It has run close to 2600 hours and is 20 years old. At some point I expect cost of maintenance/repairs will rise and I am interested in repowering before this happens.

sgrhma2 Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 20 November 2021 Location: Northern Irelan Status: Offline Points: 271	Post Options Post Reply Quote sgrhma2 Report Post Thanks(0) Quote Reply Posted: 03 August 2023 at 00:29
	Interesting that it’s only an age related problem. Based on the hours you have it equates to an equivalent of around 100,000km in a car and if regularly serviced and maintained there should be considerably more life in it. Having said that I am coming from a background of maintaining my own engine and restoring old outboards and think nothing of running boats and going long distances with 40 or 50 year old engines, which if properly maintained and serviced are just as reliable (and sometimes more with less electronics) as new engines. Boat engines tend to have better wear cycles than cars due to less start stop cycles and improved loading and less temperature cycling. Having said all this it really boils down to the condition and service record along with what the base engine is (these days there are very few true marine engines, most are derived from cars, trucks or industrial applications), it’s production numbers and the availability of original or aftermarket parts. If a limited production run, uncommon engine or parts availability issues it’s certainly worth considering changing when there is still second hand sales value in the engine and drive, especially if a suitable new unit comes up at the right price. The secret to very long engine life is a pro active approach to maintenance and service periods. In 50 odd years of boating I’ve never seen a worn out engine, but I have seen loads that have failed in spectacular ways through neglect and lack of maintenance. Hope this is useful to you. Simon

gshannon Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 16 April 2004 Location: BC Canada Status: Offline Points: 344	Post Options Post Reply Quote gshannon Report Post Thanks(0) Quote Reply Posted: 30 October 2024 at 23:32
	I have a 371 with the MD 2030 Volvo. Mine has 3000 hours and is running fine. The main issue has been the exhaust elbow clogging with rust. I replaced it with a cast stainless steel part, for about the same cost as the Volvo iron one. https://yourboatstuff.com/volvo-penta-md2030-cooling-system/
	Grahame Tangleberry 371-092 aviadesign.com



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