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Prop size for a 1990 carver 430 with Cummings 300 engines

DIESEL engine, transmission and generator repair and maintenance discussion forum.
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Scurvy Dog
Scurvy Dog
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Joined: July 7th, 2016, 11:57 pm
Vessel Info: 1990 carver 430
Location: Seward Ak

Prop size for a 1990 carver 430 with Cummings 300 engines

Postby Mylittlebonnie » July 8th, 2016, 11:51 am

The rpms are running at 2100 so it was suggested that the prop sizes were biting too much which was also loading up the one engine with carbon. The engines should be run at 2400 rpms from what I've been told. So the prop company worked on the props. I asked to change the prop to allow the engines to run at 2600 not 2100 rpms. The work was completed and it is running at 2200 rpms with a loss of 1 knot. What should be the proper prop size?

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Scurvy Dog
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Vessel Info: 1995 430
Location: Anacortes, WA
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Re: Prop size for a 1990 carver 430 with Cummings 300 engines

Postby rkrumm » February 8th, 2017, 2:22 pm

I have a 1995 430 and this is what my prop specs look like according to my survey:

Propellers: Two Make: Michigan/Federal Material: Bronze
Blades: Four Size: 23in. diameter Pitch: 26in. Right & left hand rotation.

Not sure if right or wrong but just what previous owner had installed if that helps at all.
Anacortes, WA
1995 Carver 430
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Re: Prop size for a 1990 carver 430 with Cummings 300 engines

Postby mjk1040 » February 8th, 2017, 8:47 pm

Contact Carver! Mike
Mike :down:
I'd Rather Be Boating!
1989 Sea Ray Seville
1986 Carver Mariner 32'
1990's Thompson 22' Cuddy Cabin
1990's 4Winns 245 Vista Cruiser
1980's Thompson 19' Open Bow

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