Valve Guide Honing Mandrel Caterpillar 5P7289

The Valve Guide Honing Mandrel guides honing stones during valve guide finishing operations. The tool provides accurate alignment within the valve guide bore, allowing controlled material removal to achieve correct internal sizing. It helps restore proper clearance between the valve stem and guide for consistent movement. Ensures consistent bore diameter, roundness, and surface texture, which are for correct valve stem fit and lubrication retention.Attributes:• Maintains centered rotation throughout the honing process• Helps prevent excessive material removal during honing.• Allows correction of wear-related bore distortion.Applications: The Valve Guide Honing Mandrel is used inside valve guides during service work to guide honing stones, control bore sizing, and ensure a smooth internal finish for proper valve movement.