hardarti starting 8070
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=212140
Printed Date: 17 Sep 2026 at 11:22pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: hardarti starting 8070
Posted By: cowkicker
Subject: hardarti starting 8070
Date Posted: 02 Sep 2026 at 9:43pm
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my 8070has always started verywell. it sat all winter and started right up this spring. foward to now and now it acts like the inj pump looses its prime right up this spring. |
Replies:
Posted By: DrAllis
Date Posted: 02 Sep 2026 at 10:50pm
| If it was mine, I'd probably replace the fuel hose that goes from the fuel filter on the left side of the tractor and crosses over under the water pump to the injection pump. That hose may be original and 44 years old. |
Posted By: 8070nc
Date Posted: 03 Sep 2026 at 4:44am
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You might want to replace the return hose that goes from the injection pump to the tank too. I had one doing the same thing. Started repacing hoses and when i changed that one it fixed it. I woundnt have thought the return would have caused it but it did on that one ------------- 1984 80780 1957 D14 DES 300 with 25000 engine 616 tractor |
Posted By: Kevin in WA
Date Posted: 03 Sep 2026 at 4:48pm
| Also check the return line drop tube in the tank, they have a habit of falling off, it has to be there or it will crank an extra 5 seconds or so after sitting overnight. |
Posted By: SteveM C/IL
Date Posted: 04 Sep 2026 at 7:07am
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Had one like that. Fall came and need primed if sat more than a day. PIA to operate that primer! Never diagnosed it cause it got an inline pump that winter Fine since. |
Posted By: SilverShoes
Date Posted: 04 Sep 2026 at 6:44pm
| Plunger in the primer might be leaking back |
Posted By: victoryallis
Date Posted: 06 Sep 2026 at 10:03am
Experienced something similar on a 7060 and 7080. They don’t leak fuel out but let air in. ------------- 8030, 7060, six 6080’s grandpa’s D17, 8760, 8100, and 8970 Deere. |
DrAllis wrote: