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Old 11-19-2007, 01:15 PM
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I am looking at a boat with blower motors. The engines are 454's with blowers and were built by MRD.

According to the seller the motors have 300 hours on them.

Are these motors about pooched or ready for a rebuild?

If so how much does it usually cost to do a rebuild on an engine like this?

I dont know much about these types of engine so if there is more info needed please let me know and I can try and dig it up so you ol' pro's can advise me.

Oh yeah and the blowers are apparently only boosted 5lbs

Thanks very much.
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Old 11-19-2007, 02:18 PM
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Call MRD direct, they may be able to give better info on the motors. They are a sponser here. Life span depends on how it was run.....you'll never know. It's possible to get 400+ hrs out of a blower motor. A compression and leakdown test will give a good indication of the condition of them.
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Old 11-19-2007, 02:22 PM
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300 hr blower motors. Rebuild time.
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Old 11-19-2007, 02:38 PM
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Minimum will be a top end refresh with valve job and springs.
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Old 11-19-2007, 03:24 PM
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I would love to get 300 hours out of my engine!
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Old 11-19-2007, 03:57 PM
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Anybody have Skip at MRD's email address?

I am trying to send him the pictures but I cant seem to get the email through.
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Old 11-19-2007, 04:29 PM
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If it's a mile blower setup it should last a long time with regular maintenance. If it's got some big power then reduce the time.
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Old 11-19-2007, 10:29 PM
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Originally Posted by kennyo View Post
I would love to get 300 hours out of my engine!
Cleaning mine up at 180
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Old 11-20-2007, 08:49 AM
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Motors supposedly have 4-5lbs of boost.

I think I am going to need to factor in rebuilds into my offer because I cannot take the boat at his asking and then put ten to fifteen into them, might as well buy a different boat.
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Old 11-20-2007, 03:07 PM
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Anybody know of a good guy to do a leakdown and compression test on a boat with blowers?
SHould I get a surveyor to do this or do it myself?

I have never bought a boat before so if I sound like an idiot dont make too much fun!

boat is about 30 miles south of DC
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