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Jd 4000 engine block

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glenn

01-09-2002 06:48:59




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i have a freind who is looking for a block for a jd 4000. any ideas ? i'll pass them along to him. thanks




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WTW

01-09-2002 11:10:58




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 Re: jd 4000 engine block in reply to glenn, 01-09-2002 06:48:59  
glenn, The 4000 did use the same engine as the late 4020 (1969 and newer) problem is there was two different 404 engines used in both the 4000 and the late 4020. Many of the internal parts are the same but blocks are different which will have a different timing cover. The later of these two blocks (one with the small timing cover is a better block and does use a different sleeve than the early one. The later block will have two o-rings and a packing ring sealing the sleeve in the block verses one o-ring and packing. The early block was more prone to leak coolant into the oil. So what I am saying is if you are going to the work and time changing out the block go for the better of the two options if you don't already have the later block in it. Both these engines could be found in very early 7700 combine. These combines that used these engines DID NOT have the round rotary screen on them like the later 7700 combines did. The later 7700 combines had a 30 series 404 tractor engine in them and many were turboed. The original 4020 block that you want can be found in the earlier model combine only. I do know of one but it is a complete and running engine (Eastern Iowa). Good luck hope the information is useful in your search. Dave W.

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Deere Puller

01-09-2002 08:29:34




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 Re: jd 4000 engine block in reply to glenn, 01-09-2002 06:48:59  
Block is same as late 4020, should have no problem finding one at a tractor salvage yard. Need to be careful that the o-ring lands for the wet sleeve (bottom) are in good shape and not cavitated from use of hard/un-conditioned coolant.



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