Resurfacing cylinder heads is a crucial process to restore flatness and ensure a proper seal, which can enhance engine performance and prevent leaks.
Cylinder heads can warp or become uneven due to heat cycling, pressure, and wear over time. This can lead to issues such as compression leaks and reduced engine performance. Resurfacing helps to:
Restore flatness for a proper seal with the head gasket.
Improve the surface finish, which is essential for certain types of gaskets.
Address damage from previous repairs or welding done to the heads.
This service is per set of cylinder heads
With this step we not only resurfacing the cylinder heads but we do a full A valve job as well. A valve job is the process of resurfacing and restoring the valves and valve seats in a cylinder head to ensure proper sealing and engine performance.
A valve job focuses on the mating surfaces of the poppet valves and their respective seats, which control the intake of air/fuel mixture and the exhaust of combustion gases in a four-stroke engine.
This process typically involves:
Disassembling the cylinder head and removing all valves, springs, seals, and related components. Inspecting valves and seats for wear, pitting, burning, or cracking, and discarding any damaged parts.
Resurfacing or cutting the valve seats to restore proper angles (commonly 45 degrees) and ensure a tight seal with the valves.
Refacing or grinding the valves to match the seat angles, sometimes followed by lapping to improve sealing.
Replacing valve guides, springs, and seals if worn or damaged.
Resurfacing the cylinder head to ensure flatness and proper gasket sealing.
Reassembling the head and performing tests, at Mitchells Performance we perform vacuum test, to confirm proper valve sealing.
Valve jobs are necessary when valves fail to seal properly, which can occur due to:
Burnt valves caused by combustion gases leaking past the valve edge.
Bent or broken valves from piston contact due to timing issues.
Wear from high mileage, overheating, or material fatigue.
Corrosion or foreign object damage.
A properly executed valve job restores engine compression, improves airflow, and enhances fuel efficiency and performance.
Restores proper sealing between valves and seats, preventing combustion gas leaks.
Improves engine performance by optimizing airflow through the intake and exhaust ports.
Extends engine life by addressing wear before catastrophic failure occurs.
Prevents further damage to other engine components caused by poor valve operation.
In summary, a valve job is a critical maintenance or repair procedure for cylinder heads that ensures valves operate efficiently, maintain proper compression, and support overall engine performance.
This service is per set of cylinder heads
With this Advanced step we not only resurfacing the cylinder heads and perform a full A valve job with a vacuum test to ensure proper tolerances as well, but we will completely reassemble the cylinder heads with the parts required for your project
With Peace of Mind, we will completely Disassembling the cylinder head and removing all valves, springs, seals, and related components. Inspecting valves and seats for wear, pitting, burning, or cracking, and discarding any damaged parts.
Resurfacing or cutting the valve seats to restore proper angles (commonly 45 degrees) and ensure a tight seal with the valves.
Refacing or grinding the valves to match the seat angles, sometimes followed by lapping to improve sealing.
Replacing valve guides, springs, and seals if worn or damaged with the parts required for your build.
Resurfacing the cylinder head to ensure flatness and proper gasket sealing.
Hot Tank deep wash to ensure all old materials are no cause for failure or contamination
Reassembling the head, with the parts required for your project all installed on the newly surfaced and serviced heads, we then perform our vacuum test, to confirm proper valve sealing.
Restored sealing between valves and seats, preventing combustion gas leaks.
Improved engine performance by optimizing airflow through the intake and exhaust ports.
Extended engine life by addressing wear before catastrophic failure occurs.
In summary, a valve job is a critical maintenance or repair procedure for cylinder heads that ensures valves operate efficiently, maintain proper compression, and support overall engine performance.
This service is per set of cylinder heads
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