Construction and other equipment - 545B engine problem

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545B engine problem

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=81916
Printed Date: 29 Jun 2025 at 3:32am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 545B engine problem

Posted By: Kurt WI
Subject: 545B engine problem
Date Posted: 17 Dec 2013 at 8:34pm

My boss has a 545B payloader and engine has been overhauled 2 yrs ago, now it starts great but when you wanna go push on the throttle(foot controlled) the engine just bogs down and quites. This baffles me a little cause ive been around alliss all my life and dont really know where to start looking. My 1st thought was fuel filter but ive never had that issue on any tractor before. Thanks in advance for any input!! Kurt

Replies:

Posted By: DrAllis
Date Posted: 17 Dec 2013 at 9:03pm

Does it have a "Simms" in-line injection pump??? might be a bad transfer pump which is bolted on the side of it.

Posted By: Eric B
Date Posted: 18 Dec 2013 at 12:17am

On the FR 12 loader I had, the same as a 545 just a bit newer, I had a similar problem. I put an electric fuel lift pump on it and that seemed to solve the problem.

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Currently- WD,WC,3WF's,2 D14's B. Previously- I 600,TL745,200,FL9,FR12,H3,816 LBH. Earth has no sorrow that Heaven cannot heal!

Posted By: Kurt WI
Date Posted: 18 Dec 2013 at 8:33pm

Dr dont know what you mean by "Simms" but it has a Minnimec injector pump. Eric it already has a electric pump on it. Kurt

Posted By: Coke-in-MN
Date Posted: 19 Dec 2013 at 9:24pm

Check the filters then - make sure you have good flow as well as a good supply to injector pump.

Had problems like that on my H4D - filter plugged after short hours of use - bad fuel or ? Couple filter changes and no more problems.

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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: HD6GTOM
Date Posted: 20 Dec 2013 at 11:55am

might be a fuel gelling problem, I've seen it happen this time of year, acts just like that. how much #1 fuel is in the tank?

Posted By: Kurt WI
Date Posted: 20 Dec 2013 at 8:50pm

No not a gelling problem as this started in the summer and we just parked it and used the other loader for feeding the cows!!

Posted By: Kurt WI
Date Posted: 22 Dec 2013 at 9:23pm

Thanks guys, after looking into it, it turns out it was the add on electric fuel pump so we replaced and the 2 filters. Kurt