Farm Equipment - 6080 Fuel Injector

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6080 Fuel 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=208657
Printed Date: 25 Oct 2025 at 5:06am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 6080 Fuel Injector

Posted By: rbaggett
Subject: 6080 Fuel Injector
Date Posted: 24 Oct 2025 at 5:19pm

I have a 6080 that is leaking compression around one injector nozzle. I pulled the injector but I don't see where the O ring goes. I had a mechanic change the nozzles recently but this one nozzle is leaking. Perhaps he failed to install o ring.

Replies:

Posted By: injpumpEd
Date Posted: 24 Oct 2025 at 6:00pm

There's no oring to seal compression, these use the tapered fit in the bottom of the copper tube in the head to seal. No washer of any kind is used in the bottom. Sounds like either your bolts are bottoming out not clamping it all the way down, or he put in washers that don't belong.

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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: DrAllis
Date Posted: 24 Oct 2025 at 7:02pm

I don't like the sound of this.............

Posted By: Lynn Marshall
Date Posted: 24 Oct 2025 at 8:33pm

Yeah, better hope that the correct injectors were used and no additional parts were added to seal the injector to the copper tube. Otherwise, a head removal may be involved. Maybe just some dirt fell in the hole,which isn't good either.