Avo Valve Tester

[Sparks]

Yes, it does move it, but not enough. The pin is in the adjuster as it should be. As it can be zeroed by the zero adjust, I don't suppose it matters anyway. I may look into it further after I have satisfied myself that it is working OK. Not all that keen on taking the movement out, and I breathed a sign of relief after I had safely put it back again, but the loose glass made it necessary.
Bob