StarTed
Senior Chief Petty Officer
- Joined
- Jul 14, 2015
- Messages
- 694
GM & GA
You're both right. The end you don't see has a suction cup that I use. The other accessories for the end are flats with 2 pins on them. I have no idea how or where one would use them.
I find that the best way to use this tool to lap valves is to put the grinding compound between the valve and seat and crank the handle lifting it often to get more grinding compound to flow in between. The tool rotates back and forth while also advancing more in one direction than the other. You have to pull out the valve to check that the grinding goes all the way around both the valve and seat. This process is done after the valve and seat are refaced first. Valve seat refacers do wear and can grind the seats oval if not careful. Short bursts on the seat refacing machine helps a lot to keep a vibration from getting started.
If you like old woodworking tools look up "Galoots" on the internet.
Here is another.
You're both right. The end you don't see has a suction cup that I use. The other accessories for the end are flats with 2 pins on them. I have no idea how or where one would use them.
I find that the best way to use this tool to lap valves is to put the grinding compound between the valve and seat and crank the handle lifting it often to get more grinding compound to flow in between. The tool rotates back and forth while also advancing more in one direction than the other. You have to pull out the valve to check that the grinding goes all the way around both the valve and seat. This process is done after the valve and seat are refaced first. Valve seat refacers do wear and can grind the seats oval if not careful. Short bursts on the seat refacing machine helps a lot to keep a vibration from getting started.
If you like old woodworking tools look up "Galoots" on the internet.
Here is another.
