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HD6 oil leak

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=151154
Printed Date: 23 Aug 2025 at 7:16am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: HD6 oil leak

Posted By: 66highboy
Subject: HD6 oil leak
Date Posted: 09 Jun 2018 at 5:16pm

We are working at my in laws farm getting ready for an auction this fall. Today we were able to get my father in laws HD6 running. We are looking for help with 2 issues, we could not put the machine in gear unless it was shut off. And with the machine running it was pouring oil out of what looks like a breather cap on what I would call the bell housing between the motor and trans? It's on the right side from the seat. Any input would be appreciated.

Replies:

Posted By: gemdozer
Date Posted: 09 Jun 2018 at 6:49pm

Maybe the brake cluch is't working and about pouring oil out from breather the cluch housing should be over full

Posted By: DMiller
Date Posted: 09 Jun 2018 at 6:50pm

Is it a power shift? Does it have the four cylinder or two cylinder diesel?

Posted By: CAL(KS)
Date Posted: 11 Jun 2018 at 10:04am

a 6 should be 4 cylinder and like gemdozer says could be oilclutch overfull or return plugged?

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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15