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4320 blow by


 
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larryanderson
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Joined: 12 Jul 2008
Posts: 3065


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PostPosted: Thu Nov 24, 2022 6:11 am    Post subject: 4320 blow by Reply to specific post Reply with quote

Bought a 4320 that hadnt ran for a few years. We put new rebuilt pump on it runs nice but has more blow-by than what we like. Probably know answer but open for opinions. It only had 6200 hours and
bought it non running but owner thought it was fine when He parked it. I am just going to sell it with blow by and hope to break even.Going to change oil but imagine probably needs redone Thanks.
 
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Scott 730
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Joined: 27 Nov 2002
Posts: 1635
Location: EC MN

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PostPosted: Thu Nov 24, 2022 7:27 am    Post subject: Re: 4320 blow by Reply to specific post Reply with quote

Hook up the chisel plow and go to work for a day. See what it does.
 
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Tx Jim
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Joined: 14 Feb 1999
Posts: 31840


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PostPosted: Thu Nov 24, 2022 8:08 am    Post subject: Re: 4320 blow by Reply to specific post Reply with quote


I agree with Scott put the 4320 to work for several hrs. If engine still has blow-by after being used then I suggest to perform a compression test.
 
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JIM MN
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Joined: 27 Dec 2012
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PostPosted: Thu Nov 24, 2022 10:00 am    Post subject: Re: 4320 blow by Reply to specific post Reply with quote

Needs a good workout?? Check oils and coolant and go.. Put some lub in with fresh
diesel. Only 6200 hours; just broken in.. The 4320 is a good tractor !!
 
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tomstractorsandtoys
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Joined: 30 Nov 2010
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PostPosted: Thu Nov 24, 2022 11:15 am    Post subject: Re: 4320 blow by Reply to specific post Reply with quote

Got a neighbor with a manure pump? Years ago dad got a IH 856 from a dealer friend that had been on two dealer lots. Bad blowby and oil out the exhaust. Put it on the neighbors manure pump for an afternoon and cooked all the junk out and it ran great. It sure smoked for the first hour. Sold it to a customer that bought 2 other tractors latter on, he said it ran great. A couple hours on a dyno would do the same thing. Tom
 
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ldegraw30
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Joined: 22 Nov 2022
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PostPosted: Thu Nov 24, 2022 12:02 pm    Post subject: Re: 4320 blow by Reply to specific post Reply with quote

Agree 100% with the responses here. Piston rings could be stuck from machine sitting for an extended period. Wouldn't assume engine rebuild is necessary, until you've worked the machine enough to bring engine up to operating temperature for awhile. Nothing harder on anything mechanical that non-use for extended periods ... and getting all fluids moving again could clear your issue up completely!
 
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