stuck injector
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=134546
Printed Date: 06 Nov 2025 at 4:50pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: stuck injector
Posted By: cowkicker
Subject: stuck injector
Date Posted: 01 Feb 2017 at 4:08pm
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Anybody have a suggestion on how to loosen a stuck injector in a black 7580 head? I have been soaking it with penetrating oil and tapping it lightly and still can't get it to move at all. Would it be better if I ran the engine to operating temp and then try to move it? Also, it is the #2 cylinder, not the easiest one to get to either! |
Replies:
Posted By: DrAllis
Date Posted: 01 Feb 2017 at 4:26pm
| Bosch injector?? or A-C injector?? |
Posted By: cowkicker
Date Posted: 01 Feb 2017 at 5:09pm
Bosch |
DrAllis wrote:Posted By: DrAllis
Date Posted: 01 Feb 2017 at 5:37pm
| There is a pulling tool made just for that job. |
Posted By: cowkicker
Date Posted: 01 Feb 2017 at 6:44pm
Would a service manual have a picture of the tool in it? I have several Allis/OTC specialty tools that I got from a dealer closeout years ago and some I still haven't figured out yet! |
Posted By: MACK
Date Posted: 01 Feb 2017 at 6:56pm
| Make a adapter for a slide hammer. MACK |
Posted By: cowkicker
Date Posted: 01 Feb 2017 at 7:40pm
Will the treads on top of the injector be strong enough to pull from? |
Posted By: 210Postin
Date Posted: 01 Feb 2017 at 8:37pm
| had some side hammer would pull, had some pull head and beat out |
Posted By: Ron(AB)
Date Posted: 01 Feb 2017 at 9:59pm
| Check to see if your nearest injection shop can borrow tools…they should have a fitting to go onto a slide hammer. 2.5 - 5 lbs hammer if I'm not mistaken? |
Posted By: Lynn Marshall
Date Posted: 01 Feb 2017 at 10:16pm
Crude but effective.
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Posted By: tbran
Date Posted: 02 Feb 2017 at 9:17am
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after loaning out our tool and never getting it back, the guys used a inj nut - welded an all thread sae to the top
- then used a back plate off a Frigidaire compressor , drilled three holes, put studs on the out side two for legs and the nut/washer as in the above picture. HINT! - while pulling on the injector use a air chisel with a tip ground to fit the body, turn the pressure down and vibrate the injector as pressure is applied. (same procedure used by deutz rebuilders to remove jug / head bolts rusted at the block by fertilizer etc. )
------------- When told "it's not the money,it's the principle", remember, it's always the money.. |
Posted By: cowkicker
Date Posted: 02 Feb 2017 at 7:04pm
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Got it out! Thanks for the pic Lynn, I hope you don't mind me copying your design. |