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7040 seized engine
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idaho dry farmer View Drop Down
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Joined: 09 Feb 2011
Points: 9 		Post Options Post Options   Thanks (0) Thanks(0)   Quote idaho dry farmer Quote  Post ReplyReply Direct Link To This Post Topic: 7040 seized engine
    Posted: 09 Feb 2011 at 7:18pm

Okay guys,

have not posted on here since the old forum was goin.  have a brown belly 7040, dad bought 10 years ago, was being used by neighbors this summer, oil plug came out.  seized her up, pulled pan and head today, #4 bearing is cooked to the crank.  i have a 80 N6  motor,  will that crank work or am i looking for another crank.  or can i have this crank turned i wonder?   dont really want to get rid of her,  for some dumb reason i like that tractor.  brother works for local agco dealer so i can get engine kit from him at good price.  just wonderin what to do with the crank.
thanks,
idaho dry
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21053 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2011 at 7:37pm
Do not use the old crank...N6 crank will fit.....probably throw away the bad rod and have others checked for cracks and re-sized......new rod bolts are a must.....make sure all main caps fit snug in the block and don't fall out.
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Joined: 25 Jan 2011
Points: 114 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CORLEWFARM Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2011 at 5:50pm
would not be suprised if a main has spun
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Joined: 12 Sep 2009
Points: 21053 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2011 at 7:21pm
I wouldn't be surprised either, but sometimes a guy gets lucky.
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d17brown View Drop Down
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Joined: 11 Sep 2009
Location: farley iowa
Points: 1700 		Post Options Post Options   Thanks (0) Thanks(0)   Quote d17brown Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2011 at 9:27pm
just use the combine motor
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Joined: 21 Feb 2011
Location: Utah
Points: 105 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tcorbett Quote  Post ReplyReply Direct Link To This Post Posted: 25 Feb 2011 at 9:07am
Just saw that someone in Idaho was selling at 7040 engine:
Used 3500 Model Engine for 1976 ALLIS-CHALMERS 7040 TRACTOR
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