Farm Equipment - Another G question

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Another G question

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=11618
Printed Date: 26 Jan 2025 at 10:19pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Another G question

Posted By: CTuckerNWIL
Subject: Another G question
Date Posted: 27 Apr 2010 at 5:47pm

I noticed since I have had the G running it seems to peg the oil pressure gauge. Yesterday I swapped out the original Allis gauge for a black faced 30 PSI gauge and started her up. It pretty much pegs the 30 PSI gauge. Is this an indication of something needing attention? I am used to the Allis built engines running 6-12psi and don't know much about this little engine yet.

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Replies:

Posted By: Alberta Phil
Date Posted: 27 Apr 2010 at 5:58pm

According to the specs in the dealer service manual oil pressure is specified at a minimum of 7 lbs and a max of 20 lbs. Ideal is 15-20 lbs. The pressure can be adjusted at the pressure relief valve which is located on the left front (crank end) of the block towards the top. Looks like a large slot head screw in the manual.