Thanks for the information. It does sound like they built these to last with tungsten carbide seats. I would hate to have to have to regrind the angle on the seats. A person would need a diamond cutting tool to do it. Even sapphire stones and other materials aren't much harder than tungsten carbide. Also it sounds like the engineers did this to maintain clearance without having the valves gradually sinking into the head. My Dexta engines don't have insert seats so eventually the cast iron erodes so that insert seats have to be installed.
Since the stems on RBoots's valves weren't worn I guess it was more expedient to bore out the guides and press in off the shelf guides to restore proper stem clearance.
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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