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Sounds like you had a kickback when you threw your chain. Hard enough impact the sprocket nose spreads releasing some of those tiny roller bearings. Cheaper laminated bars are bad for that.
Throwing chain can contribute to it, as can running your chain too tight. Did you crank up the chain tension due to the fact that cutting vines was causing you to throw chains?
Quote from: HolmenTree on February 01, 2019, 09:08:40 PMSounds like you had a kickback when you threw your chain. Hard enough impact the sprocket nose spreads releasing some of those tiny roller bearings. Cheaper laminated bars are bad for that. As a little bit of thread drift. HolmenTree: Can you get tip replacements for Stihl ES (ROLLOMATIC E Super ) bars in Canada easily anymore. How about tip sprockets for non ES bars (ROLLOMATIC E). My dealer could not even find the part number in his Stihl parts catalog. Says that the price of a tip replacement 5 years ago was nearly the cost of a new bar. Find it hard to believe but we have become such a throw away society that you never know.Oregon still has bar nose tip replacements but it seems that Stihl is now a problem down here.
Stihl Rollomatic ES detachable sprocket noses can be ordered through your Stihl dealer last I checked. Not sure about the Rollomatic E sprocket nose repair kit.Here's a part # for you. This is for .050 E bars.#3003 650 9908(Image hidden from quote, click to view.)
Played with my broken bar for a couple minutes today. I pushed the bearings in with my knife, and it popped back into shape. Probably missing some bearings, but I think I can get a bit more life out of it for beater duty. Question...How would I tighten up the nose? It's a single rivet on the sprocket. Maybe give that a couple whacks with a ball peen hammer? Will that tighten it up?
Quote from: HolmenTree on February 02, 2019, 02:45:23 PMStihl Rollomatic ES detachable sprocket noses can be ordered through your Stihl dealer last I checked. Not sure about the Rollomatic E sprocket nose repair kit.Here's a part # for you. This is for .050 E bars.#3003 650 9908(Image hidden from quote, click to view.)Thanks for the part number for the E bar 0.050. 3/8 or 0.325? Can't tell from photo and I think there is a difference.My dealer said the sprocket nose part was not in the catalog. Maybe a US vs Canada catalog issue. Do you have a part number for the 0.050 ES bar replacement tip?
Quote from: lxskllr on February 06, 2019, 05:38:11 PMPlayed with my broken bar for a couple minutes today. I pushed the bearings in with my knife, and it popped back into shape. Probably missing some bearings, but I think I can get a bit more life out of it for beater duty. Question...How would I tighten up the nose? It's a single rivet on the sprocket. Maybe give that a couple whacks with a ball peen hammer? Will that tighten it up?You will likely end up with a junk chain to go along with your junk bar.
I've got 25' of junk chain coming aside from the loops I already have. I'm pretty good in that regard ;^) I'm anticipating the new bar that's coming will work better for serious use, and it'll get my good Stihl chain, but in the meantime, those vines aren't gonna cut themselves, and they won't get cut with Stihl unless I find an amazing deal somewhere, hence the question. That center rivet is what holds the whole mess together, right? IOW, there's room for adjustment?
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