austringer
ArboristSite Lurker
Well, I used my modified tip 3/8 .050 20" bar and turned down .404 x 7 rim with my 3/8 picco chain on a couple 16" x 9' ash logs. It cut beautifully! Smooth, straight and faster than I expected. The anemic oiler on the old 066 was an issue, so I built me a quick-n-dirty auxiliary dribbler for the tip of the bar which helped alot. After the cutting I inspected the bar, chain and rim. The rim looks fine. The bar looks fine too although I've never inspected a bar after 3 tanks of fuel so I don't know what it should look like. The chain however "might" be experiencing a slight peening issue. Again, I never measure my chains after 3 tanks of fuel, but the drivers on this picco chain have peened (if thats the proper term) out to about .053 on the leading edge from their original .050". This is with the modified 404x7 rim. The chain still rides perfectly in the bar grove and there is no drag, resistance or tight spots. It really seems fine. However, I decided to try the new 3/8 x 7 rim for a while and see what happens. After 2 ash logs the chain is still very sharp so I'm quite pleased with the picco so far. After finishing the second log, I decided to modify my factory oil pump on the 066 by breaking the rules and grinding the eccentric lobe on the oil pump shaft and the adjuster too. Squirts out way more oil! I don't think I will need to mess with the auxiliary dribbler next go-round. For those who think thats a bad idea, matters not to me as my pump body had a hole wore through like in mtnguns oil pump post, so I jb welded it just the same. If my dremmel modded pump doesn't work out, I will just buy a new one...which will cost more than I paid for the saw! Still waiting to acquire another log for testing.
troy
troy
