Farm Equipment - Injection pump

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Injection pump

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=177973
Printed Date: 21 Jun 2025 at 4:04am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Injection pump

Posted By: allisbred
Subject: Injection pump
Date Posted: 30 Jan 2021 at 9:01pm

Fuel injection pump is dripping on the 175d, 236 Perkins. It has filled the pale approx a gallon since last use about 3 weeks ago. Engine starts and runs good, no issues. Is there a seal that can be replaced without a total overhaul? Been on a roll with pump rebuilds here lately!

Replies:

Posted By: MACK
Date Posted: 30 Jan 2021 at 9:14pm

All depends on where it is leaking . MACK

Posted By: allisbred
Date Posted: 30 Jan 2021 at 9:20pm

Best I can tell is from the throttle shaft, everything is wet. I can dry it down tomorrow and throw some powder to find the source.

Posted By: Fred in Pa
Date Posted: 31 Jan 2021 at 6:53am

I can fix that right on the tractor for you . Do shut of shaft seals at same time .

Spray it down with brake cleaner ,use air to blow it off and look at it ,wasting your time with power on this.

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He who dies with the most toys is,
nonetheless ,still dead.
If all else fails ,Read all that is PRINTED.

Posted By: allisbred
Date Posted: 31 Jan 2021 at 10:12am

Fred, Sounds good. Is there any concern with fuel getting to the crankcase? I was planning to clean up snow with it most likely tomorrow. I can use the backhoe if needed but would prefer the blade on the 175. I’ll get in touch with you today.