Farm Equipment - C Bent push rod again

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C Bent push rod again

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=50077
Printed Date: 19 Aug 2025 at 9:12am
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Topic: C Bent push rod again

Posted By: Larry in Ill
Subject: C Bent push rod again
Date Posted: 05 May 2012 at 6:11am

Good morning all,

I have a question about a bent push rod. The engine was restored a few years ago and after about 50 hours of light use, I notice a ticking and occational pop out of the exhaust. I had a bent push rod and valve. I replaced the valve, guide, and rod and now again I have a bent rod. The valve is fine with no unusual wear. What would be the possible problems?

Replies:

Posted By: B26240
Date Posted: 05 May 2012 at 7:07am

Are you sure your replacement pushrod was straight? Any slight bend could get worse quickly, also excesive clearance (rocker arm adjustment) posibly could cause it .

Posted By: MBWisc
Date Posted: 05 May 2012 at 7:38am

Or a badly worn rocker arm assembly? Two years after overhaul my B turned into a three cylinder. A push rod had come up along side the rocker. Rocker assembly was worn out. Replaced the assembly and all is well.