Farm Equipment - D-15 power steering pump

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D-15 power steering 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=160648
Printed Date: 19 Jul 2025 at 10:14pm
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Topic: D-15 power steering pump

Posted By: Duckslayer77
Subject: D-15 power steering pump
Date Posted: 04 May 2019 at 10:43am

D-15 power steering pump keep blowing oil out oil tube on generator any ideas

Replies:

Posted By: DrAllis
Date Posted: 04 May 2019 at 4:48pm

I have to assume this is a DIESEL engine tractor ?? Oil blowing out of the rear of the generator?? I say the front seal on the power steering pump is leaking.

Posted By: Duckslayer77
Date Posted: 04 May 2019 at 6:19pm

Yes it’s a diesel tractor but what mite be the problem with the pump that it keeps blowing oil out of the seal I’ve replaced it three times it continue to do this? Bad releaf valve spring? Is pump bad?

Posted By: DrAllis
Date Posted: 04 May 2019 at 8:17pm

The relief valve spring doesn't change itself to a higher pressure. I imagine your pump has scratches inside the pump body that are causing the seal to be under pressure when it shouldn't be, OR if the pump was assembled incorrectly after replacing the original old seal. Incorrect assembly will surely blow out every new seal you install.

Posted By: Duckslayer77
Date Posted: 04 May 2019 at 9:16pm

Okay Thank you I’ll take it apart