Farm Equipment - 7000 trans oil???

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7000 trans oil???

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=8643
Printed Date: 19 Jan 2025 at 12:01pm
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Topic: 7000 trans oil???

Posted By: Matt Z
Subject: 7000 trans oil???
Date Posted: 25 Feb 2010 at 5:23pm

I keep putting oil in my transmission on my 7000 and it keeps disappearing. It doesnt seem to be leaking too bad anywhere. I put 5 quarts in the last month in the filler tube behind the batteries and I see its low again. Any one else have this happen. Thanks.

Replies:

Posted By: Hurst
Date Posted: 25 Feb 2010 at 5:28pm

When you say transmission, do you mean the rear differential compartment, or the hydraulic, transmission, powershift reservoir? I am guessing you mean the latter, but the fluid in the rear end is at a higher level if everything is right than the fluid in the transmission, so usually it goes from the differential to the transmission if the seals are bad on the PTO shaft or the pinion shaft. You may have a double leak and have fluid leaking from your differential into your bull gear housings, then fluid leaking from the transmission into the differential. Pull the level plugs on the bull gear housings and see if either is holding your lost 5 quarts.

Hurst

Edit: disregard the first part. I didn't read very carefully to see you said the filler tube behind the batteries.

Also, check your engine oil level. There is a slight possibility your pump's shaft seal is leaking and your engine is now 5 quarts overfilled.

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1979 Allis Chalmers 7000
5800 Hours