Zone valve or Tstat?

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took a screw with me. I still wasn't convinced that it was 8-32 ...just didn't look like it. But I finally was convinced by the guy at HD. Bought a tap, tried it in a piece of scrap, using one of the old screws and it looks like it should work fine. Right now i have a c-clamp holding the fourth corner of the valve. So at least we have the boiler running. tomorrow surgery will begin.
 
slownsteady said:
took a screw with me. I still wasn't convinced that it was 8-32 ...just didn't look like it. But I finally was convinced by the guy at HD. Bought a tap, tried it in a piece of scrap, using one of the old screws and it looks like it should work fine. Right now i have a c-clamp holding the fourth corner of the valve. So at least we have the boiler running. tomorrow surgery will begin.
Click to expand...

Oldog would tell to leave the clamp, good enough.:p
 
I prefer a vice grip over a C clamp for a long term fix like that. I once drove a pickup with a vice grip as the three on the tree shifter for a whole summer. State inspection said “No”.

PS: A number 29 drill is the correct tap drill for 8-32 that’s .136” if I was trying to drill out a screw 8-32 I would go with a 1/8 drill for starters. A good method to get on center is to bolt the other half in place and then get a drill close to the clearance hole and let the mating half be the drill jig and just drill a slight amount into the location to make a drill point. Then take it apart and locate off that point.
 
Hmmm. lost my last post. Maybe I never hit the button.

Anyways.. I did tap that sucker this afternoon and it works. The old ball valve was so stiff I could hardly turn by hand, the new one was very easy to turn. So I have faith that was the whole fix. I'm waiting to see now if it holds temp thru the night.
BTW; the valve didn't leak when I removed the c-clamp. It was holding on just 3 screws.
 
slownsteady said:
Hmmm. lost my last post. Maybe I never hit the button.

Anyways.. I did tap that sucker this afternoon and it works. The old ball valve was so stiff I could hardly turn by hand, the new one was very easy to turn. So I have faith that was the whole fix. I'm waiting to see now if it holds temp thru the night.
BTW; the valve didn't leak when I removed the c-clamp. It was holding on just 3 screws.
Click to expand...

It was just waiting for you to trust it.
 
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