Shops, Barns, Varmints, and Trucks

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Air compressor

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Shops, Barns, Varmints, and Trucks
Forum Description: anything you want to talk about except politics
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=191251
Printed Date: 21 Aug 2025 at 1:06pm
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Topic: Air compressor

Posted By: TMiller/NC
Subject: Air compressor
Date Posted: 13 Oct 2022 at 7:17pm

The air compressor on 2006 prevost motor coach builds to much air pressure.. Replaced the unloader valves in air compressor head, new governor, changed spitter valve.

Not understanding the operation completely but seems for some reason unloader valves are not holding intake valves open assuming that's how it works. Any one with experience?? Thanks, Tim

Replies:

Posted By: TMiller/NC
Date Posted: 14 Oct 2022 at 6:45pm

Update:::::: After much head scratching muttering and mumbling took the new governor off and replaced with a known working one cured the problem. New one no good right out of the box!!!!

Posted By: DanWi
Date Posted: 14 Oct 2022 at 7:20pm

Most frustrating thing when you replace parts trying to fix a problem and the new part doesn't work.