Search results

Okay, I'll try again with your suggested method of cutting...

Thanks Jim! Sliced a 1/2 mm section off the tip (didn't come out as well as I had hoped, using sawing motion). Sanded the new surface with 2,000 grit paper, kind of like using an eraser on rough paper. After testing, valve still leaks...probably didn't get the surface perfectly level... Will try...

Thanks for all the advise! I'll update this thread when I can report progress...

Thanks for the inputs! Machining would be nice, but I think it may be too soft for that, I have trouble visualizing it. The hardness is probably close to that of an O-ring. I have several of these fuel control valves and removing one of these plungers puts it out of commission, so to speak, but...

The rubber "button" comes off as shown in the 2nd image above. Making a new part is an idea...

The image below shows a plunger portion of the shut-off valve for the SW fuel burning heater. The rubber/plastic "plug" has been seated against the valve opening for twenty some years and now has an imprint, which causes the valve not to seat correctly at all times, it may or may not leak...