Farm Equipment - 190 silicone oring

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190 silicone oring

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=136811
Printed Date: 08 Nov 2025 at 11:09am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 190 silicone oring

Posted By: chuck (WI)
Subject: 190 silicone oring
Date Posted: 30 Mar 2017 at 5:58pm

A little confused on this and wondering what the correct method is used today, my repair manual says the piston sleeve silicone o ring (red one) goes on bottom groove and black one on top, went and got new orings at agco dealer he says red on top black one on bottom groove. Anybody have any insight on this.

Replies:

Posted By: SteveM C/IL
Date Posted: 30 Mar 2017 at 8:06pm

someone will know....things can change over the years but I'd quiz the parts guy again telling him what the manual says....Not I&T manual is it?

Posted By: chuck (WI)
Date Posted: 30 Mar 2017 at 8:43pm

Yes I&t, I know they changed over the years and that's what agco guy said also, just seeing how the guys on here are putting them on.

Posted By: MACK
Date Posted: 30 Mar 2017 at 9:07pm

Red on bottom. Oil will swell the red one causing it to fit tight. MACK

Posted By: Don(MO)
Date Posted: 31 Mar 2017 at 9:38am

Like Mack said, Red on the bottom.

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3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep.