Farm Equipment - d15 power steering leak, internal?

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d15 power steering leak, internal?

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=147957
Printed Date: 21 Aug 2025 at 6:38am
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Topic: d15 power steering leak, internal?

Posted By: trevorno
Subject: d15 power steering leak, internal?
Date Posted: 26 Feb 2018 at 2:12pm

As it says, I have a d15 that leaks ps fluid. I've added fluid a lot lately but it always reverts back to 'manual steering mode'. I cant find where its leaking on the ground, is there a way it could be leaking internally? Where should I start looking?

Replies:

Posted By: DrAllis
Date Posted: 26 Feb 2018 at 2:28pm

It's either leaking on the ground or the engine is waaay overfull on oil. Never seen one leak into the engine, so you're on your own.

Posted By: trevorno
Date Posted: 26 Feb 2018 at 2:41pm

Can it leak into the engine?

Posted By: trevorno
Date Posted: 26 Feb 2018 at 2:46pm

Or are you implying i may be accidentally overfilling the engine? I'm not, but I dont mind the question.

Posted By: Jim Hancock
Date Posted: 26 Feb 2018 at 3:27pm

Hi Trevorno.

When was the last time that you checked your engine oil dipstick?

Like Doc, I haven't heard of power steering fluid leaking into the engine.

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How blessed we are by HIS GRACE!

Posted By: trevorno
Date Posted: 26 Feb 2018 at 3:30pm

I checked it two days ago. It was a little overfull. I just fixed a stuck carb float so I think it's gas that's causing it to be too full. I need to change the oil anyway.

Posted By: DSeries4
Date Posted: 26 Feb 2018 at 4:20pm

Look under the front of the tractor to see any fresh oil leaking. Clean up any dirty areas first if need be. Doubtful that it would leak into the engine. Also check the lines, some might be loose.

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Posted By: *DougW
Date Posted: 26 Feb 2018 at 5:48pm

Is it a narrow front and leaking into the pedastal??????

Posted By: *DougW
Date Posted: 26 Feb 2018 at 5:48pm

Is it a narrow front and leaking into the pedastal??????

Posted By: LeonR2013
Date Posted: 27 Feb 2018 at 7:17am

When you go to fill it up next time, use brake fluid. If it's just o-rings that's gotten hard the brake fluid will soften them and there's a good chance they'll soften up and swell and stop leaking. Try dropping an o-ring into some brake fluid and watch it swell up over a few days time.

Posted By: trevorno
Date Posted: 27 Feb 2018 at 10:57am

No, wide front end.