Mark
Thank you. I think I will leave out the rubber. I remember now that there were none upon disassembly.
Good news on cylinders.
I checked my rocker shafts, they have about 0.0004" wear, out of round. The oil holes line up well with the 5mm bolts installed. Should I seek new ones? If I did find new ones I might leave out the 5 mm bolts.
Steve
I'd just flip the rocker shafts over, if worn a little on their bottom sides. That much wear isn't very significant, so long as the oil grooves show in the rocker's oiling holes.
I'm planning on re-using the springs, at this point. Very little wear or collapse in any of them. If you'd like extra performance from them, I could have them sand- or bead-blasted for you? This extends their life somewhat, mostly. It doesn't alter how they work.
In fact, this might be a good time for an old 'theory moment: in one of my favorite history books, "Ford: the first 100 years", there was a pointer to a story I researched and found to be very cool, regarding valve springs. In the beginning of the internal combustion engine, the #1 problem was the life of valve springs: they were measured in less than 100 hour increments. Henry Ford decided he wanted to solve this industry-wide problem and put one of his oldest and practiced machinists on it, all day every day, testing different springs and revising them. Then, one summer, a particular spring ran longer by 10-fold than any other spring, and Henry, who checked this project every 2 weeks himself, had the machinist trace the spring's history to find out what was so different about it. The machinist had kept complete records, and discovered that when it went to testing, it was a little rusty from sitting and waiting its turn, so he sandblasted it clean first. Within 3 weeks after that, they developed the technology now known as 'impact destressing', or today, "bead blasting", as it relieves all the surface stress lines in steels and other materials. All such springs are heated, wound, ends machined flat, and bead-blasted with tiny steel beads to make them last thousands and thousand of hours....because someone took a minute to 'fix up' something that wasn't quite right...
