How to replace injectors on a 7010?
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=12954
Printed Date: 01 Feb 2025 at 12:41am
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Topic: How to replace injectors on a 7010?
Posted By: roscoe
Subject: How to replace injectors on a 7010?
Date Posted: 25 May 2010 at 9:12pm
My mechanic says that I have a few bad injectors, so I am going to replace them all.
I have a 1980 model 7010.
Is this a straight-forward job, or are there any tricks involved?
Thanks,
Roscoe.
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Replies:
Posted By: Amos
Date Posted: 25 May 2010 at 9:19pm
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Quite easy if they all come out without the sleeve. I have had one come out with the sleeve and it was on a 7010, other than that not hard at all. You may want to consider having your injection pump at least tested if not overhauled at the same time as the injectors. Need not buy new just have a reputable shop repair your old injectors.
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Posted By: Adam Stratton
Date Posted: 26 May 2010 at 7:54am
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It is a pretty simple job. Make sure and watch if the injectors come up with or without the little copper washer/ fire ring. If they get lodged in the head, you can use a 5/8 course thread tap to catch them and pull them out. Be careful not to break them when pulling them out (pull straight with lots of WD-40 or similar), and dont cross thread the lines when putting them back on.
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Posted By: DrAllis
Date Posted: 26 May 2010 at 7:56am
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No copper washers used on 7000-7010-7020-8010.
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Posted By: Adam Stratton
Date Posted: 26 May 2010 at 8:16am
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Oops. Sorry! I just assumed a 7010 had them too. Thanks for straightening that out for me. Roscoe would have been digging for those rings for a LONG time.
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Posted By: roscoe
Date Posted: 26 May 2010 at 9:11am
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Thanks, Dr. Allis. How are they sealed? O-Rings? Metal seats?
Roscoe
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Posted By: Hurst
Date Posted: 26 May 2010 at 9:58am
They are sealed with a copper sleeve instead of washers. By going to the sleeve, it was supposed to keep the injector cooler since the copper was in direct contact with the coolant in the head.
Hurst
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1979 Allis Chalmers 7000
5800 Hours
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