Farm Equipment - 5040 injection pump

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5040 injection pump

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=176499
Printed Date: 21 Aug 2025 at 6:45pm
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Topic: 5040 injection pump

Posted By: ldogfarm
Subject: 5040 injection pump
Date Posted: 05 Dec 2020 at 4:33pm

I purchased a 5040 that will not start. Apparently the owner had a jack-leg working on it and he lost ball part #71005174. I need a size and or source for this any help would be appreciated.

Thanks

Bennie

Replies:

Posted By: Gary Burnett
Date Posted: 05 Dec 2020 at 7:53pm

Is that the one that was in Madison County?

Posted By: ldogfarm
Date Posted: 06 Dec 2020 at 1:08am

yes

Posted By: Gary Burnett
Date Posted: 06 Dec 2020 at 4:15am

I looked at that tractor the crankcase oil smelled and looked like to me it had diesel fuel

in it so I figured the inj. pump was leaking and letting the fuel into the motor.Also another issue was the lever for the PTO clutch was in the up or disengage position the old guy told me he ran it that way which is not a good thing for those motors.Think he put the lever down before I left.I figured the injection pump was going to have to come off and be repaired.Pretty good looking tractor and has the 8 speed.