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post #51 of 70 Old 02-19-2013
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Re: Repower confusion (horsepower)

That's too bad. Maybe Garrett or another has a replacement for it that's a drop in for your engine. You could do a little fabrication to fit one but that can be troublesome. No wonder you don't like turbos.
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post #52 of 70 Old 02-20-2013
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Re: Repower confusion (horsepower)

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That's too bad. ... No wonder you don't like turbos.
Yeah! It sounds like he could be letting a big stack of $100 dollar bills get sucked into the engine to "improve combustion" and would still be better off.

Good luck healing the turbo.

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post #53 of 70 Old 02-20-2013 Thread Starter
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Re: Repower confusion (horsepower)

Our sailboat engine is the MD 31A, the only non turbo model of the 31 series engine. Our power boat has the 41P, and I'm not looking forward to when we have to replace the turbo on it (2000 hrs on it, so we probably aren't far off) if it isn't rebuildable.

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post #54 of 70 Old 02-21-2013
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Re: Repower confusion (horsepower)

Did you ever look into the 4 cylander 54 hp Yanmar without the turbo?


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post #55 of 70 Old 02-21-2013 Thread Starter
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Re: Repower confusion (horsepower)

chef- I've got a call into the local rep. I need a down angle trans., so that is a problem. I repowered our last boat (partners with my brother) with a 3GM and it's been a great engine for 20+ years.

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post #56 of 70 Old 02-21-2013
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Re: Repower confusion (horsepower)

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Originally Posted by jrd22 View Post
Our sailboat engine is the MD 31A, the only non turbo model of the 31 series engine. Our power boat has the 41P, and I'm not looking forward to when we have to replace the turbo on it (2000 hrs on it, so we probably aren't far off) if it isn't rebuildable.
Didn't realize that the A wasn't turbo charged. Ours is the TAMD31S at 100hp. What is the hp of the MD31A?

As best I could tell, all the other turbo part numbers for these series had available service kits. I had to get the workshop manual for mine, when I couldn't find the service kit and was disappointed to read that it can't be serviced. Only adjusted.


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post #57 of 70 Old 02-21-2013 Thread Starter
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Re: Repower confusion (horsepower)

62 hp non turbo, and I think they went up to about 130 hp max in this series engine.

That's really surprising that the turbo on a TAMD engine can't be rebuilt. Did you just talk to Volvo or did you contact a turbo rebuild shop? I'll check with a couple of Volvo guys I know and get back to you.

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post #58 of 70 Old 02-21-2013
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Re: Repower confusion (horsepower)

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62 hp non turbo, and I think they went up to about 130 hp max in this series engine.

That's really surprising that the turbo on a TAMD engine can't be rebuilt. Did you just talk to Volvo or did you contact a turbo rebuild shop? I'll check with a couple of Volvo guys I know and get back to you.
Yes to both, but if you get any suggestions, I would greatly appreciate them. I have not ordered the turbo yet, but need to get to it soon. Launch in 6 weeks!!


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post #59 of 70 Old 02-21-2013
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Re: Repower confusion (horsepower)

You might want to check with the builder / designer of the boat to see what HP they recommend.
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post #60 of 70 Old 02-21-2013 Thread Starter
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Re: Repower confusion (horsepower)

billy- I have an email in to Ted B. Waiting to hear back from him.

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