ciscoguy01
Addicted to ArboristSite
Soooo, this is my theory and I'm interested to see what everyone thinks and get some input... I've been doing alot of thinking about the older saws lately and how they just seem to last and last. I know they are heavier, don't have near the power to weight, they smoke alot, harder to get parts for, and just in general aren't built like the new saws for making wood cutting much easier. With this in mind, what exactly makes them last so long? I doubt the metals used back then were superior to todays. I also don't think the engineering was any better at all. Most of the same basic designs used 40 yrs ago are the exact same as today, 2 strokes in general are this way... Decomp and air filtration are really the only huge differences, and maybe a little bit with the bearings and whatnot, i.e. the 3 piece crank design and all. That all being said, what made them last longer. What caused those saws to last 30+ yrs vs. the ones that only last around 10 or so. The big thought in difference that comes to mind is the speed. None of the older saws turned 13000 rpms. Alot of them turned only like 8 or 9000. Even 11-12000 was alot for them... I think the speed is the key to what makes them fail so much sooner. I could be wrong here, but think of a diesel. A high revving diesel dies at 5000 rpms, some more, but not a whole bunch more. Look how long they last, 1/2 million miles isn't uncommon for them at all. Does this sound feasible?? This being said, if one were to tone down a saw, say from 13,000 to 11,500 would it make it last longer and give it greater torque?? Or would it just bog it down and make it doggier than it is compared to the old torque monsters??? This is where I'd like EVERYONES input... What do you guys have for me on this subject??? Am I way off base here??? Tell me whatcha think. Good or bad... This is a VERY interesting subject for me...
opcorn:
opcorn: