maroon 7080 vs black
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=126667
Printed Date: 19 Aug 2025 at 11:33pm
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Topic: maroon 7080 vs black
Posted By: 19856020
Subject: maroon 7080 vs black
Date Posted: 02 Aug 2016 at 3:55pm
are there any differences between mb & bb 7080's other than shifter on floor also same question of the 7580 . thanks for any info  ------------- 716 917 918 1920 d17 6080 |
Replies:
Posted By: DrAllis
Date Posted: 02 Aug 2016 at 4:30pm
| Later black models had more lifting power at the 3-point hitch. Very late models had Bosch injectors. Several other little things were changed. |
Posted By: Mike Kroupa
Date Posted: 02 Aug 2016 at 4:34pm
| Maroon chassis 7080 used scavenger pump to transfer leak-off oil from power director housing to the georotor sump housing. Black chassis used a sump under the power director housing and steel tubing to gravity flow oil back to the gerotor sump housing. Much better system. I would think black 7580 would be this way also. Late 7080's had increased 3-point lift capacity. I have a 1980 7080 and mine does not have increased lift capacity. It was a serial number break thing and was carried on into the 8000 series. I'm sure others will add more. Mike |
Posted By: 427435
Date Posted: 02 Aug 2016 at 5:04pm
|
If I remember correctly, there were some improvements made to the variable pressure/variable volume pump system also.
------------- Mark B10 Allis, 917 Allis, 7116 Simplicity, 7790 Simplicity Diesel, GTH-L Simplicity Ignorance is curable-----stupidity is not. |
Posted By: DrAllis
Date Posted: 02 Aug 2016 at 6:50pm
| Gravity flow oil back to the pump sump was before the end of the maroon series and all 7580's had it, so late 1976 I think. |