I recently made new valves and re-seated a pair of dash pots, also known as relief valves or snifters for a Glover steam locomotive. Here is the process of machining these parts and lapping them into one another.
Video from Windy Hill Foundry where these were cast: https://youtu.be/F_bd6uz0hyY
Support VintageMachinery.org on Patreon:
Make a one time donation to VintageMachinery via PayPal:
Please Visit: http://www.vintagemachinery.org
American Rotary Phase Converters
Use checkout code "Vintage10" for a 10% discount on all AD, ADX and AI converters!