Farm Equipment - My NFE FPS ‘45

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My NFE FPS ‘45

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=192930
Printed Date: 11 Oct 2025 at 3:11pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: My NFE FPS ‘45

Posted By: captaindana
Subject: My NFE FPS ‘45
Date Posted: 15 Jan 2023 at 5:07pm

Hey my friends I took a ride instead of shop work today, bought anotherHD bench for my new heated shop too. I did take a few minutes while bullying the new to me bench through the doors and ran a compression test on her. Every cyl shot the gauge to between 145 and 150 psi which I’m confused as I didn’t think they should be that high? Is this kosher? Enjoy every day. Dana

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Blue Skies and Tail Winds
Dana

Replies:

Posted By: Gary
Date Posted: 15 Jan 2023 at 5:26pm

   while bullying the new to me bench through the doors and ran a compression test on her.

That's a new one on me !

How do you run a Compression Test on a HD Bench?

Take FEL and push the Bench up against a wall?

   Any pictures ?

G

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Posted By: IBWD MIke
Date Posted: 15 Jan 2023 at 5:26pm

145 is about spot on for M&W pistons. Got an engine kit from Tony years back, it makes about 150.

Posted By: DrAllis
Date Posted: 15 Jan 2023 at 5:53pm

Or OEM D-17 4 inch bore pistons are 145 psi.

Posted By: WF owner
Date Posted: 15 Jan 2023 at 7:05pm

If you stick a borescope camera in the cylinder, you would be sure what you have for pistons.