As a toolmaker/machinist of over 40 years, I can appreciate what you're doing here. However, unless it's for demonstration purposes, why not bring the spring compressor/scale down until you're on the base of the unit, then just set your caliper on the compressor to zero, then move to the proper dimension, in this case 1.850. Then subtract lift from 1.850 to arrive at lbs open figure? I personally don't like using telescope gauges, because they always "spring back approx .001". Probably good enough for this application, however.
Great info. Looks like a pain in the ass though to do both heads. The Engine builders who complete all the proper steps do no charge enough in my opinion.
Should have a .125" washer on the inner spring to imitate the 1/8" step on the retainer - other than that the pressure won't be accurate. The inner spring rides on the step not the outer edge of the retainer
I was watching this on my TV and came on my phone to check the comments. I was thinking the same thing. Need to have that upper retainer plate on for the inner spring.
need longer valve to make it higher ! or special spring to work with what your max height is now and see if the spring pressure and coil bind works with you build
