Description
When your Allis Chalmers starts losing power or running rough, there’s a good chance your exhaust valves are telling you they’re done. After thousands of hours of opening and closing in extreme heat, these valves take a beating from combustion gases and carbon buildup. A worn exhaust valve means poor compression, rough idle, and that telltale puffing sound that says it’s time for an overhaul.
What You’re Getting
- Precision-machined valve with 1.312-inch head diameter that seals tight against the valve seat
- 4.910-inch overall length designed to match your engine’s exact specifications
- 45-degree valve face angle that creates the proper seal for maximum compression
- Quality construction that handles the extreme heat and pressure of exhaust gases
Built for Real Farm Work
This exhaust valve is engineered for Allis Chalmers 4-cylinder gas engines that power many of the classic orange tractors still working farms today. Whether you’re running a WD-45 for hay work, a CA for cultivating, or any of the other reliable AC machines, proper valve function is critical for maintaining the power and fuel economy these engines are known for.
Made to Last
Farm engines work hard in dirty conditions, and exhaust valves see the worst of it. This replacement valve is built with materials that resist warping and burning, even under the constant heat cycling that comes with field work. The hardened valve face maintains its seal even after thousands of heat cycles.
Good to Know
Replacing exhaust valves requires pulling the head and having the valve seats checked – it’s typically an overhaul job rather than a quick fix. While you’ve got everything apart, it’s smart to check all the valves and have the head surfaced if needed. Fresh valve guides and proper valve lash adjustment will help your new valves last as long as possible.
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