Farm Equipment

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6080

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=211763
Printed Date: 18 Sep 2026 at 6:58am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 6080

Posted By: bluechev
Subject: 6080
Date Posted: 22 Jul 2026 at 2:27pm

Have 6080 with Knock in engine doesnt appear to be any shrapnel in oil or pan runs ok

Replies:

Posted By: DanWi
Date Posted: 22 Jul 2026 at 3:15pm

The question is are you willing to chance putting a rod though the block or continuing to ruin a crankshaft? It could just be piston skirt slapping a little. Need to find the source of the knock.

Posted By: DrAllis
Date Posted: 22 Jul 2026 at 5:07pm

No miss-fire or white exhaust smoke?? How many HOURS ?? They don't have rod bearing problems but one could still fail. How much crankshaft end play is there ?? A failed rod bearing should be noisiest at start up and maybe quiet down a little when oil pressure hits it. A really failed rod bearing will have the crankshaft journal probably ruined. Turbo diesel engine cranks are very hard and a failed burned out bearing takes the hardness away., making the crank junk. You talk like you have the oil pan off ??