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Old 08-11-2010, 09:52   #16
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I did an excruciating amount of research before I replaced my Volvo MD40A. I very nearly signed an order for a Yanmar but ultimately chose the Beta Marine. There were several factors that swayed my decision.

First off, let me mention that I have a lot of experience with diesel engines. I have a degree in Diesel Technology and have worked as a heavy equipment mechanic (mostly agricultural and earth-moving equipment but I've spent more time than I like to admit working on over-the-road tractor-trucks). I also served time as a service manager for a truck and tractor dealership.

Back to the Beta Marine decision: I believe Yanmar and Volvo have uniquely identified the marine market. They build engines that serve the application. The duty cycle that a pleasure marine engine is subject to is one of very low demand. How many boat owners do you know that run their engines at WOT (Wide Open Throttle) for extended periods of time? How many boat owners do you know that put 2,000 hours on their engine per year? How many boat owners do you know that regularly have their boat operated by poorly-trained, poorly paid employees? The fact is, most boat owners baby their engines to an extreme.

In the construction industry, for example, it's common for an owner to tell the operator of a piece of heavy equipment to get a job done as fast as possible - regardless of the wear it might put on the equipment. This is often done in hot, dusty conditions and where routine maintenance is frequently a low priority. Granted, some equipment owners take very good care of their equipment but I've seen millions of dollars worth of equipment be very poorly maintained yet it still seems to operate well. It never ceased to amaze me.

The Beta Marine engine is built on the Kubota tractor engine block. It has an excellent reputation in the agricultural and construction industries for it's reliability. Whereas my engine has only slightly over 400 hours on it, I have a very high level of confidence in it's ability to give us many hours of trouble-free operation.

Fair winds and calm seas.
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Old 08-11-2010, 10:03   #17
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Originally Posted by beetle View Post
So far I'm in $17,120 and there's perhaps another $1500 to go. This is all for parts, with the exception of $90 for an hour of consultation on the boat with a diesel repower specialist to design the exhaust system (well worth the $90!).

Of that $17k, there are several major pieces:
11,700 for bobtail engine, adapter plates to fit the Hurth 15 MIV transmission, and second engine instrument panel (the key panel mounts below, the button panel mounts in the cockpit)
3700 for MaxProp VP 3 blade propeller
495 for Ample Power 105 amp hot-rated alternator

I have done the work myself, I'm
Very helpful. I thought it all sounded good until you said you had done the work yourself. I have been curious how much it would cost to install etc.
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Old 08-11-2010, 10:13   #18
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Beta or Yanmar

Quote:
Originally Posted by nhschneider View Post
I did an excruciating amount of research before I replaced my Volvo MD40A. I very nearly signed an order for a Yanmar but ultimately chose the Beta Marine. There were several factors that swayed my decision.

First off, let me mention that I have a lot of experience with diesel engines. I have a degree in Diesel Technology and have worked as a heavy equipment mechanic (mostly agricultural and earth-moving equipment but I've spent more time than I like to admit working on over-the-road tractor-trucks). I also served time as a service manager for a truck and tractor dealership.

Back to the Beta Marine decision: I believe Yanmar and Volvo have uniquely identified the marine market. They build engines that serve the application. The duty cycle that a pleasure marine engine is subject to is one of very low demand. How many boat owners do you know that run their engines at WOT (Wide Open Throttle) for extended periods of time? How many boat owners do you know that put 2,000 hours on their engine per year? How many boat owners do you know that regularly have their boat operated by poorly-trained, poorly paid employees? The fact is, most boat owners baby their engines to an extreme.

In the construction industry, for example, it's common for an owner to tell the operator of a piece of heavy equipment to get a job done as fast as possible - regardless of the wear it might put on the equipment. This is often done in hot, dusty conditions and where routine maintenance is frequently a low priority. Granted, some equipment owners take very good care of their equipment but I've seen millions of dollars worth of equipment be very poorly maintained yet it still seems to operate well. It never ceased to amaze me.

The Beta Marine engine is built on the Kubota tractor engine block. It has an excellent reputation in the agricultural and construction industries for it's reliability. Whereas my engine has only slightly over 400 hours on it, I have a very high level of confidence in it's ability to give us many hours of trouble-free operation.

Fair winds and calm seas.
Sounds good, which Beta did you install
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Old 08-11-2010, 11:04   #19
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Very helpful. I thought it all sounded good until you said you had done the work yourself. I have been curious how much it would cost to install etc.
I asked two local yards what the typical cost is to do a repower like mine, and the numbers were roughly $10,000. Given the work, while time-consuming, is not that difficult I'm doing the work myself.

There's nothing inexpensive about a repower, given you're starting with a $10k motor and that's just for the engine sitting on a pallet next to the boat. And then you start spending money.

- rob
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Old 08-11-2010, 11:29   #20
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Beta or Yanmar

One problem I am having deciding is that the Yanmar is about $1500 cheaper than the Beta. Probably because of being English with duties and the dollar being so low
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Old 08-11-2010, 11:44   #21
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One problem I am having deciding is that the Yanmar is about $1500 cheaper than the Beta. Probably because of being English with duties and the dollar being so low
If the price differential is within 15% between Yanmar and Beta I wouldn't let the price influence the decision. I'd spend additional time comparing the motors (weight, size, fuel consumption, torque/power curve), the part(s) you'll change/add to the motor, the fit into the boat (space, access to filters, oil drain location, etc) to select the motor that best fits your boat.

The other engine I looked at carefully was Westerbeke - they have a 48hp motor that is in the ballpark.

- rob
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Old 08-11-2010, 12:19   #22
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There's nothing inexpensive about a repower, given you're starting with a $10k motor and that's just for the engine sitting on a pallet next to the boat. And then you start spending money.
I thought the 4JH was more like $18,000 sitting on a pallett next to the boat.
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Old 08-11-2010, 12:42   #23
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I thought the 4JH was more like $18,000 sitting on a pallett next to the boat.
$18K is above the list price on the engine, at least today in the USA - the base motor (bobtail - without a transmission) is about $10,200 as purchased from the dealer at their discount. There are likely to be additional charges for motor freight shipping to your location (unless you can pick it up yourself).

A telephone call to your area's yanmar distributor will get you the engine's list price and the name of the dealer(s) that would be authorized to sell to you. Then call the dealer and see what the street price will be. That will give you the best information if you're considering budgeting out the cost of a repower.
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Old 08-11-2010, 15:10   #24
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Just completed (3 weeks ago) my replacement of my Perkins 4-236 with the Yanmar 4JH4-TE 75 hp. Costs to date: $13,800 (bobtail), $3800 to install with custom engine mounts to raise engine to suit centerline of shaft, $900 to fabricate exhaust riser(dry) to meet Yanmar exhaust system criteria to maintain warranty. $600 to service and install the BW tranny with 2:57 gear ratio, all this effort to be able to spin a large prop (20x18) to cruise at 6-7 kts at 2000 engine rpm. Goal of project is to reduce noise and vibration, fuel usage.

Somewhat disappointed in noise factor (note:my engine room has zero sound insulation), I expected more improvement. I'm sure I'm guilty of too high expectations. I will have to put in insulation in the larger engine room space and or an engine box.

Fuel consumption seems improved, haven't done enough testing to effectively measure though.

Boat rides 2-3" higher due to difference in weight (600#).

Considered the BETA 75 (equivalent to my Perkins 80 hp), but the Yanmar was cheaper by $2000. Rebuilding the Perkins was also considered, but for
$8-9,000 and I still have a 45 yr old engine block whose service record was not recorded, I felt my resale value of the boat with the new Yanmar was enhanced.
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Old 08-11-2010, 15:17   #25
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chris07732 that's goodto have some hard numbers. $13,800 for the bobtail - sounds like you'll be under $20M for a total repower with 4jH. Definitely would have done that versus a rebuild. That money is thin air in a resale since there are so many creative ways to define rebuild.
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Old 08-11-2010, 15:29   #26
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Went with a Beta 75 to replace my W-58. They built the engine to fit my allowed space including a front PTO . No complaints so far.
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Old 09-11-2010, 16:01   #27
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Yanmar or Beta

I ordered a Beta 50 yesterday to be delivered in 2 weeks. Price was a bit more but felt more comfortable with some of the installation, and other issues. We had a 4-107 in our last boat for 20 years and loved it, though can't wait to have a nice new diesel to play with after all these years of leaky engines. Just did not feel comfortable heading off to far away places with our old diesel.
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