Farm Equipment - Difficulty starting 5040

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Difficulty starting 5040

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=162222
Printed Date: 05 Apr 2026 at 12:15pm
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Topic: Difficulty starting 5040

Posted By: DJB
Subject: Difficulty starting 5040
Date Posted: 25 Jun 2019 at 12:38pm

I have an AC5040. During the winter it requires being plugged in but when we went to use it the other day it wouldn't start and we had to plug it in for 2 hours. Is this typical?

Replies:

Posted By: Tbone95
Date Posted: 25 Jun 2019 at 12:40pm

I guess that depends on your location.......But at this time of year I'd say that's not typical.

Posted By: Jim.ME
Date Posted: 25 Jun 2019 at 1:45pm

Gretna: FL, LA, NE, VA, United Kingdom, or none of these?

Doesn't seem like it should need heat this time of year.

Posted By: Tbone95
Date Posted: 25 Jun 2019 at 2:30pm

The interesting question is did the heat actually help it, or was it a coincidence that it started after 2 hours of heat???? If the heat helped, then.....poor compression? Seems the logical problem?

Posted By: Larry in NC
Date Posted: 25 Jun 2019 at 4:16pm

I had a 5040 a few years ago and it normally started fine without heat in warm weather. Heating the oil is a slow process. The tractor has a manifold heater which would be the effective way to heat it when cold oil is not an issue. If your heater is not working, they are cheap to replace.

Posted By: Gary Burnett
Date Posted: 25 Jun 2019 at 7:16pm

Those need a good battery to really turn the motor over fast,plus hold the throttle wide open

when you're cranking it.Make sure the starter isn't dragging.

Also if it starts by plugging it in have you tried the preheat to start it?

Posted By: wheatbreeder
Date Posted: 25 Jun 2019 at 7:31pm

we had one years ago Gary is correct the need to be spun fast

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Farm stuff 8050,6690,175,F2,5050,WD

Posted By: Dave (NE)
Date Posted: 26 Jun 2019 at 12:08pm

If it is not spinning fast enough, is this a starter issue or the battery not being big enough?

FYI - it is Gretna Nebraska. Has been warm enough that it shouldn't require being plugged in.

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Do not argue with an idiot. He will drag you down to his level and beat you with experience. Mark Twain.