Farm Equipment - like a rifle going off

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like a rifle going off

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=44933
Printed Date: 11 Sep 2025 at 7:25pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: like a rifle going off

Posted By: cobra
Subject: like a rifle going off
Date Posted: 03 Feb 2012 at 2:29pm

did a complete tune up on my d15 series II. points,plugs ,wires, cap, rotor button, condenser. tractor started backfiring like a rife going off. checked timing-ok checked point gap-ok checked firing order-ok.put old condenser back in and it worked perfect. blew snow for an hour. went to use tractor today and started backfiring again. i assme its the condenser again.why would it blow two condensers or could it be something else. need help thanks smitty

Replies:

Posted By: BobHnwO
Date Posted: 03 Feb 2012 at 3:53pm

Make sure your points are clean and the cap is dry inside!

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Why do today what you can put off til tomorrow.

Posted By: Dick L
Date Posted: 03 Feb 2012 at 4:26pm

I would guess that it has nothing to do with your condenser. Sounds to me like the advance is sticking/ not moving as it should. That or the shaft is sloppy in its bearing.

You can take hold of the rotor and see how easy it will moves the advance if at all.

Posted By: Steve in NJ
Date Posted: 04 Feb 2012 at 10:18am

Could be a bad spark plug. A misfiring plug will allow unburned fuel to enter the muffler and ignite making the explosion. Combustion is supposed to take place in the cylinder, not the muffler... LOL!
Steve@B&B