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HD6 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=47859
Printed Date: 24 May 2024 at 1:55am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: HD6 PROBLEM

Posted By: Cobb
Subject: HD6 PROBLEM
Date Posted: 24 Mar 2012 at 9:30pm

I have a question about a HD6 that I am looking to buy....It starts easy ...runs fine...UNTIL you put a load on or work it...then it miss'es and kind of back fires...owner says he had the pump gone through and injectors checked out ... SO Im wondering..VALVES??? ... CAM??? ...TIMEING???... PISTONS??? ...What should I look at FIRST..... THANKS

Replies:

Posted By: Ages Cat
Date Posted: 24 Mar 2012 at 10:26pm

I would check the fuel supply. Is the tank outlet plugged? It has happened to me several times, with a rag and a cover for fuel line deicer. A collapsed fuel hose?

I have (2) Hd'6s. They are a great tractor.

Posted By: gemdozer
Date Posted: 25 Mar 2012 at 5:25am

Check the fuel filters and air cleaner too

Posted By: Cobb
Date Posted: 25 Mar 2012 at 8:30am

I cant believe I didnt think of that!!! I had that happen on a D4 CAT ... migtht be something else but thats a great place to start...THANKS for jar'en my brain loose

Posted By: D-17_Dave
Date Posted: 25 Mar 2012 at 9:45am

I'd check out the simple things mentioned above first, but since the PO has had the pump off I'd check out the timing. Sounds like the timing is too high. Either way, don't take anything for granted.

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Yea, I can fix that.....