Farm Equipment - 7040 seized engine

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7040 seized engine

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=25515
Printed Date: 26 Feb 2025 at 9:25am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 7040 seized engine

Posted By: idaho dry farmer
Subject: 7040 seized engine
Date 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

Replies:

Posted By: DrAllis
Date 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.

Posted By: CORLEWFARM
Date Posted: 10 Feb 2011 at 5:50pm

would not be suprised if a main has spun

Posted By: DrAllis
Date Posted: 10 Feb 2011 at 7:21pm

I wouldn't be surprised either, but sometimes a guy gets lucky.

Posted By: d17brown
Date Posted: 10 Feb 2011 at 9:27pm

just use the combine motor

Posted By: tcorbett
Date Posted: 25 Feb 2011 at 9:07am

Just saw that someone in Idaho was selling at 7040 engine:

http://www.ksl.com/index.php?nid=218&ad=14504953&cat=98&lpid=&search= - http://www.ksl.com/index.php?nid=218&ad=14504953&cat=98&lpid=&search=

Used 3500 Model Engine for 1976 ALLIS-CHALMERS 7040 TRACTOR