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Old 06-08-2017, 15:20   #1
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Yanmar 3gm30 crankshaft

can someone help me find a used crankshaft i also need a connecting rod

any help or leads would be helpfull, the boat is in st thomas
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Old 07-08-2017, 01:06   #2
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Re: Yanmar 3gm30 crankshaft

Try this site, they advertise crankshafts and other bits for your 3GM

crankshaft Sailboat Supplies, Engine Parts and Boat Parts

Cheers Steve
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Old 07-08-2017, 01:27   #3
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Re: Yanmar 3gm30 crankshaft

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Originally Posted by Captsteve53 View Post
Try this site, they advertise crankshafts and other bits for your 3GM

crankshaft Sailboat Supplies, Engine Parts and Boat Parts

Cheers Steve
thanks steve
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Old 08-08-2017, 07:14   #4
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Re: Yanmar 3gm30 crankshaft

they didnt have one
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Old 08-08-2017, 08:21   #5
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Re: Yanmar 3gm30 crankshaft

Have asked a good mate of mine in Australia (Marine Dealer) actually John Deere but gets around many of the yards in Brisbane and does numerous re powers ,

Saw an add on Ebay USA with a guy selling the con-rods but the crank was sold also saw another add for the crank but said it was scored and needed grinding???

Whats actually wrong with your old crank?
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Old 08-08-2017, 08:29   #6
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Re: Yanmar 3gm30 crankshaft

Also found this 3gm30 being wrecked, i sent them a message asking about the crank

https://www.gumtree.com.au/s-ad/karr...sel/1154191608

Cheers Steve
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Old 08-08-2017, 08:35   #7
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Re: Yanmar 3gm30 crankshaft

Also another one but in the UK (fed x?) https://www.apolloduck.com/boat.phtml?id=514810

Cheers Steve
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Old 09-08-2017, 20:05   #8
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Re: Yanmar 3gm30 crankshaft

Try Ebay. Always many Yanmar parts. Also tractor wrecking yards. Lots of Yanmars in tractors and field equipment.
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Old 10-08-2017, 03:03   #9
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Re: Yanmar 3gm30 crankshaft

i was told it spun the rod bearing ,i dont see how it could still run
very high praise for the rebuilder in st thomas ,from all who have used him
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Old 10-08-2017, 06:39   #10
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Re: Yanmar 3gm30 crankshaft

When you spin a rod bearing, many can still run, but usually very quickly pick up a hollow knock, that of course gets louder
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Old 10-08-2017, 09:39   #11
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Re: Yanmar 3gm30 crankshaft

Found a 2gm crankshaft in Australia at a engine re-builder, standard size crack tested and polished up ready to go, will post/fedx/dhl(@your cost) or what ever , asking 1000 Aust dollars - contact me for details

Cheers Steve
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Old 10-08-2017, 13:49   #12
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Re: Yanmar 3gm30 crankshaft

The crank can be repaired if it's not in pieces. If undersize bearings are available, it can be turned down or crank repair companies hard chrome the bad journal oversize and polish it back to standard size.
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Old 11-08-2017, 07:59   #13
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Re: Yanmar 3gm30 crankshaft

Sorry typo in the above post, the crankshaft is for your engine a 3 gm
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Old 14-08-2017, 01:54   #14
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Re: Yanmar 3gm30 crankshaft

i found one in st croix
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