I'm guessing that this doesn't matter as long as the underside is OK. Am I guessing right?
Might make it harder for the rubber suction cup valve grinding tool to make a proper vacuum grasp
Steve, you are correct, as long as the seal area is good and the margin is not knife edged.
Duct tape solves everything.
Steve the urban tool box:
Duct Tape, Vise Grip, and a Butter Knife!
The valve needs to have the underside, that which makes contact with the seat needs to be turned in a valve grinder. Doing so will make a valve face that is at the proper angle and round.
You should use the valve with grinding compound to hand grind the valve seat. I hope you are not using the duck tape with compound to grind the seat! It will make a most imperfect seat that will not seal well.
Not to worry, Jack. The seats look good and the valves have the proper angle. And yes, there's a valve under there. The tape just helps to cup keep a grip on it. Somewhere I have a mechanical tool for this, but it needs a new cup.
We've been had on this one! This was all pre-planned.
Two quick tips.
Use a valve like this switched into an intake. It runs cooler there. T intake and exhaust valves are the same unless something has been changed.
Don't use original type two piece valves.
Drive carefully, and enjoy, W2
Steve: I thought you knew what you were doing, but I was concerned that the photo with the duct tape would give a new T member the wrong idea on valve grinding. JP
I have on some small engines used a dremel tool with a cutting disc to cut a slight groove in the top of the valve to allow a screwdriver to be used to turn the valve.Works well.Now bear in mind I aint talking about a 1/4 inch deep notch,just enough to put the screwdriver in the middle of the valve to twist while seating it.
Steve, a little spit in the suction cup works too.
Stephen
Something you might consider - you can buy a complete valve grinding setup now fairly cheap on ebay. I got a good Sioux valve and seat grinder for about $750 a few years back. It seems that only us old car guys grind valves anymore. The newer guys just replace them.
A valve grinder and a metal lathe ----- once you get them you'll wonder how you ever got along without them. The other thing like that is a TLB.
(....like I'd know what a "TLB" is,....right?)
TLB = Tractor Loader Backhoe.
Sorry.
I bought the Sioux valve refacer this year. Been looking for a deal on the seat refacer now.
Yes they can come in handy. I had a Sioux valve refacer and a Kwick-way seat grinder, both older than me but they got fried when a friends shop burned to the ground, along with my press which was air over hydraulic and easy to use. I wish I still had the press.
Bill
I saw the seat cutters this weekend, but no driver. I passed although the price wasn't bad.
If you buy a valve machine hold off until you find one that has the attachment for grinding the end of the stem to length. It's a real handy deal for fitting valves. Not every overhaul needs a whole new set of lifters and valves. They ground the ends of the valves for years and years to get correct clearance. Snap On machines usually have it and I've seen some of the older Sioux machines with it, also Black and Decker made a real nice machine in the 30's and 40's that had that attachment. I have a Snap On that has the stem grinder and a water pump for cooling while you are grinding. They are CHEAP anymore. I think you can buy one for two or three hundred bucks pretty easily.
Mine is an older unit and it came with the attachment.