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John Deere Tractors Discussion Forum
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4430 engine ID Question

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Barney

04-21-2004 11:22:44




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I have two different complete engines for my 1976 4430. The one in it is #6404T-10-338577R. The other one that is supposed to be the original one, is #6404T-01-354058R. Is there anyway to know if this information I was given is correct, or what year the engines are? All help is appreciated.

Thanks in Advance; Barney




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G-MAN

04-21-2004 13:42:08




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 Re: 4430 engine ID Question in reply to Barney, 04-21-2004 11:22:44  
I don't think there is any way to tell which or if one is the original. On later tractors, we can go into Deere Pathways and type in the tractor serial number, which will then bring up all option codes the tractor was built with, engine serial number, trans serial number, etc. I don't think that info probably goes back to the 30-series. Is one actually a -10 and the other a -01, or is that a typo?

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Barney

04-21-2004 14:45:56




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 Re: Re: 4430 engine ID Question in reply to G-MAN, 04-21-2004 13:42:08  
Yes that came off the engine plate as <01>. That was the engine that came out back in Sept. It only rolled #1 Rod Bearing. The block is fine, but I don't know yet if the crank will clean up # 1 at .010. The crank is/(was) a standard crank. I just finished Measuring it. I don't want to cut any more than .010. The Block that is in the tractor will need to be lined bored. I want to rebuild the one with the <01> number, it's supposed to be the one that came in the tractor.

Thanks G-man!

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G-MAN

04-21-2004 16:11:53




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 Re: Re: Re: 4430 engine ID Question in reply to Barney, 04-21-2004 14:45:56  
Be careful with grinding the crank, and make sure the machinist knows what he's doing with it. Failure to reestablish and smooth the fillet/radius can lead to stress risers and crankshaft breakage. It probably won't be much of an issue in a low-horsepower application like a 4430, but in high-horsepower engines, improperly ground cranks can lead to trouble. And, if it will clean up at .010", that will help. It's usually at .020" and .030" where things can get dicey. If you want, you can email me your complete tractor serial number and I can try to run it through Pathways for an engine serial number cross-reference, but I don't know if they go back that far.

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Barney

04-22-2004 19:21:23




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 Re: Re: Re: Re: 4430 engine ID Question in reply to G-MAN, 04-21-2004 16:11:53  
Thanks G-Man, I'm going to go with the engine that was taken out back in September, so it won't matter anyway. I talked to some more people today that knew the tractor, and they think that is the original engine. The machine shop that will turn the crank is the same shop that does a lot of that work for one of the JD dealers. They are set up for them.

Thanks for the Response; Barney

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