Hiya Mike- I dug ou the other notes I made, and am now understanding why I'm not an academic
....I measured just about everything I could think of, and the best I can decipher is;
357 Cam- calculated lift (measured with digital sliding caliper)=
Cam Lift; average 0.337 " give or take 2 or 3 thou
O/A Length of Valves 3.933 +/- a few
Head of Valve to
Tip side of ~3.787 to 3.798 <----- I figured this is fairly relevant
Collet groove ?
I can't quite figure out the measurements of the rocker arms, it seems both arms of the inlet rocker (p/r>shaft< 'tappet'
), are different to both arms of the exhaust rockers (p/r>shaft< 'tappet' extra*rant*)...
...I think about that point I just threw it all together
....but that was 3+ years ago*smile*
The figures I have are maybe these, read at own risk
;
Inlet (p/r>shaft) = ~0.750" & shaft> 'tappet' extra*rant* = ~ 1.245-1.273" * 1.517" (unsure what this is)
Exhaust (p/r>shaft) = ~ 0.993-1.008 ? & shaft> 'tappet' extra*rant* = ~ 1..487 * 1.790" ditto
I've added a pic of one of my valves closed as a indicator of where the collets/keepers are sitting after I had the grooves made bigger to fit,
and I also found some other "installed spring height" figures, but am not sure what was the reference point (0.0, maybe from head, not the spring seat); range of 1.456" - 1.506"
And don't forget that more winds in a spring makes it softer...
- you'll need it
Klaus, I had a notion the reason double springs are used is something to do with reducing valve bounce, because the two springs have different load rates, so they counteract each other...or something along those lines
???