185 Running Rough
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=116494
Printed Date: 19 Dec 2025 at 10:03am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 185 Running Rough
Posted By: Slim
Subject: 185 Running Rough
Date Posted: 22 Dec 2015 at 11:41am
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I bled the injectors and all but the one on #2 cylinder bled. I'm not getting any fuel out of that line. What can be the issue? -Slim ------------- AC 1971 170 WF Gas, AC 185 Diesel WF, AC WD NF, AC '54 WD45 NF, AC 7080, AC 7030, Wheel Horse D-180 Automatic |
Replies:
Posted By: injpumpEd
Date Posted: 22 Dec 2015 at 11:54am
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yes, if no fuel is going to the injector, it won't fire that cylinder, thus rough running. Now, being a Roosa pump, it's uncommon for them to lose one cylinder. Check the line carefully, and make sure it came loose from the injector when you loosened the nut. Sometimes those stay sealed in the injector and have to wiggle the line to pop it loose. ------------- 210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers! |
Posted By: MACK
Date Posted: 22 Dec 2015 at 9:37pm
| I saw one once when the opposing cylinder had the tip split. Why, don't know, maybe Ed can tell us. MACK |
Posted By: DrAllis
Date Posted: 23 Dec 2015 at 5:52am
| If the problem is truly as described, I'd guess the #6 injector tip may be stuck open or split. |
Posted By: Slim
Date Posted: 24 Dec 2015 at 11:17am
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So I was able to get the #2 injector to bleed. Still running rough though. What kind of wrench do I need to get the injectors out? They have like a zillion points. -Slim ------------- AC 1971 170 WF Gas, AC 185 Diesel WF, AC WD NF, AC '54 WD45 NF, AC 7080, AC 7030, Wheel Horse D-180 Automatic |
Posted By: injpumpEd
Date Posted: 24 Dec 2015 at 11:46am
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sounds like a 12 point socket is what you'll need, just regular tools. Either 5/16 or 3/8. The bolts are 5/16. ------------- 210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers! |
Posted By: bradley6874
Date Posted: 25 Dec 2015 at 6:44pm
Pull all 6 send them to injpumped when the come back you will be another satisfyed cust  ------------- You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul |