Farm Equipment - WC Low Oil Pressure

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WC Low Oil Pressure

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=203118
Printed Date: 18 Sep 2024 at 10:53pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: WC Low Oil Pressure

Posted By: Dave(inMA)
Subject: WC Low Oil Pressure
Date Posted: 09 Sep 2024 at 10:29am

Just changed the oil (10W-30) and filter (Fram C159) in my unstyled WC. Ran it to warm up the oil just before draining the oil, and oil pressure reading was mid-range (about the "r" in "Normal") but barely into normal range after changing the oil. Oil is up to the full mark. The filter had been sitting on the shelf for several years.

The one odd thing is that the center pipe came out with the old filter. I tapped it until it "seated" when I reinstalled it. Might that be the cause of the low reading? Thanks!

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WC, CA, D14, WD45

Replies:

Posted By: Alvin M
Date Posted: 09 Sep 2024 at 11:36am

If you tap it in too far it will cut the flow to the gauge

Posted By: ac45dave
Date Posted: 09 Sep 2024 at 11:42am

It states in the operators manual,oil press will read lower until the filter is fully saturated.With only 1/5th of the oil flowing through the filter, it takes a bit to get the press back up.

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54 wd-45gas ; 56 wd-45d N/F w/fact p/s ; 63 d-17 sIII N/F gas ; 60 D14 N/F ; 67 d-17 sIV N/F gas ; 63D15 sII W/F; 39rc#667 ; 2021 massey 4710 fwa ; gravely 2 wheel tractors

Posted By: steve(ill)
Date Posted: 09 Sep 2024 at 1:22pm

the PRESSURE is made by BACK PRESSURE from the filter. New filters have very little restriction and therefore LESS pressure shows on the gauge... Couple good notes above.. dont push the 1/4 inch tube too deep, and let the filter saturate for 30 minutes before you get a GOOD pressure reading.. If the filter was STUFFED COTTON style like the OLD ONE then it is fine.. Being on the shelf did not hurt it.

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Like them all, but love the "B"s.

Posted By: Dave(inMA)
Date Posted: 09 Sep 2024 at 6:53pm

Thanks, guys. I pulled the center tube and reseated it higher in its hole. Pressure now reads close to the "R". I much appreciate your help!

David

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WC, CA, D14, WD45