I should probably get down on my knees saying hosannas (sp) and keep my mouth shut in humility. :-)
I rechecked the volume of my heads in preparation to go buy spacers tomorrow.
The last time I did this, I had readings that went from 46cc to 49cc.
This time I needed it real accurate so I was doing everything the same, right down to the pressure I used to hold the plastic disc flat.
Just a gentle pressure on the two flat sides while carefully injecting with no pressure in the middle.
I also used a lighter grease and just enough to seal the valves.
A real light film around the edge, just to stop the fluid.
So I went thru the first two and they read same as last time at 49cc.
I do the bad head and suddenly I have 49 again, not 46!
I checked it two more times to be sure then went on to the last one and damned if it didn't come in the same! And rechecked it too.
So I have 4 chambers within a quarter cc of each other.
I like it! :-)
What I had done the last time was got a little sloppy.
I also used four valves and set up a whole head instead of the same two valves for all chambers.
I also guess I used too much grease the first time.
Maybe some pressure on the center of that real low one.
Three times apiece and everything identical.
Yeah, I know Bob said that. :-)
There's a moral in there somewhere.
west