Farm Equipment - 190xt overhaul

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190xt overhaul

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=210372
Printed Date: 14 Mar 2026 at 2:58pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 190xt overhaul

Posted By: 190xt MN
Subject: 190xt overhaul
Date Posted: 13 Mar 2026 at 11:13am

Hi have a question on my 190xt 3 that I just overhauled. I’ve only ran it for about 5 minutes since we got it back together, I just moved it from one side of the shop to the other while I wait for an avabile dyno to break it in. It doesn’t seem to be getting a lot of oil to the rocker arms. There is plenty of flow from the port in the head and once it fills the rocker shaft, there is plenty of oil going out the outlet tube. Nothing is leaking by the corks in each end that I can see. I dissambled the rocker arm shaft and cleaned out all the small passages in the shaft for oil to pass through. Then cleaned the rockers themselves and reassembled. I used some lubriplate on the rockers during reassembly. I think the cold 15w 40 is just taking its time getting to everything. There is some oil on the bottom of most of the rocker arms and I wouldn’t be too worried about it only I know that the drain oil off the head is one of the ways the cam bearings are oiled, and those bearings along with the cam are new. My Question is if I run it some more and get the oil good and hot, then check how much oil is up top, do I risk cam bearing or cam damage? Or will the cam bearings and cam get some splash lubrication from the crank also. Thanks in advance for any replies.

Replies:

Posted By: tbran
Date Posted: 14 Mar 2026 at 12:40pm

It usually takes a few minutes after an over haul to get to a splashing situation from the rockers. IF you lubed the cam brgs well you will be ok. Never heard of a cam brg issue on a 301 or its cousins. Party on...

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When told "it's not the money,it's the principle", remember, it's always the money..

Posted By: NEVER green
Date Posted: 14 Mar 2026 at 1:52pm

Remove the outlet tube and put a plug in it.

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2-8050 1-7080 6080 D-19 modelE & A 7040 R50