For the whole length of the bar those triangle shaped drive links are driving the oil down, centrifugal force does not come into play until it reached the end, by then the tip has it's oil.
I got a couple older ones that have greese holesStihl bars don't even have a hole for grease.
I learned about drive sprocket bearings 'the hard way', so I clean and grease these every time the clutch drum is removed.I grease my bars every sharpening and the clutch bearing every 6th sharpening.
my 545 has that feature i will dig through the owners manual and find out if my 365 is the same way even though it has a inboard clutch.I learned about drive sprocket bearings 'the hard way', so I clean and grease these every time the clutch drum is removed.
On most STIHL saws (inboard clutch), removing the clutch drum is so easy that I do this on any 'heavy' cleaning. I put a small dab of white lithium grease on it, and work it in with a toothpick, or some thing similar. STIHL sells a little toothpaste like tube of bearing grease which is very convenient to carry.
On most Husqvarna saws (outboard clutch), removal is a bit more involved. My 353 has a hole in the crankshaft that makes greasing this bearing easy. The grease exits through a hole in the side of the shaft at the bearing location, Not all outboard clutch saws have this feature. I use one of those little grease guns mentioned earlier.
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Philbert
I'm sorry i stirred the forum with my thread
I learned about drive sprocket bearings 'the hard way', so I clean and grease these every time the clutch drum is removed.
On most STIHL saws (inboard clutch), removing the clutch drum is so easy that I do this on any 'heavy' cleaning. I put a small dab of white lithium grease on it, and work it in with a toothpick, or some thing similar. STIHL sells a little toothpaste like tube of bearing grease which is very convenient to carry.
On most Husqvarna saws (outboard clutch), removal is a bit more involved. My 353 has a hole in the crankshaft that makes greasing this bearing easy. The grease exits through a hole in the side of the shaft at the bearing location, Not all outboard clutch saws have this feature. I use one of those little grease guns mentioned earlier.
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Philbert
Do you think that the collected wood gunge in the bar groove soaking up & blocking to a degree the chain oil would have an effect on the lube of/to the tip sprocket ? with some newish saws the oiling is minimal at best + some oilers are non adjustable, requiring the fitting of a HD oil pump to cope with the longer length barsI always figured that if the bar groove is deeper than the drive links, the bar oil that settles off the links is getting down to the sprocket
Makes for very interesting reading, 3 points spring to mind. I would presume the end product of your labour's is carried out in an almost hospital like environment ( Dry, Clean etc.) as my aero mod days were. Do you use a slurry/ soluble oil in your turning /lathe / milling procedures ? & I'm wondering on the outcome if subjected to all the crap that a saw is subjected to, I"m talking a commercial money making wood processing set up, not a firewood guy cutting his cords for his home heating, as an aside part of my saw servicing wages are wood supplied in metre lengths for my home heating ( I have to cut/split to fit my stoves )+any parts I require for my personal saws, so I know the huge difference between working conditions of 1 of mine & a work saw, I doubt if we will ever convince each other to our way of thinking but all knowledge is at some time useful, so even at 80 years old next time around I'm always willing to absorb if possible other peoples take on things. Thank you for your reply.Here's alot of info for you. If you finish it all and your brain isn't twisted all up, you'll have a good understanding of what I was saying. It's not a simple two or three sentence answer. Tool & Die maker by trade.
http://www.crucibleservice.com/eselector/general/generalpart1.html
If you read my earlier post ,I'm a converted luber, always have been, the newer saws skimp on oil, environment issues, bit the same as the 999/1 fuel mix saga, in my doatage i've come to the conclusion that not all of this new thinking is as good as it's cracked up to be.I figure the fine timber that builds up under the chain in the bar slot pushes the oil up into the chain and reduces the amount that makes it into the sprocket, but some still makes it.
Greasing takes 3 seconds and ensures its lubricated.
Also, Saws will generally have an oil pump rated to lubricate the max length bar listed by the manufacturer.
If your not lubing the bar, the saw is too small for it.
I had this issue with a 30" bar fitted to a Stihl 039 which is rated for bars between 16 and 20"
My 066 needs to have the oiler turned back 25% with the 30" bar, and its always wet with oil.
then tell me..why the groove in the links,,that by physics,,would LIFT the oil UP, to bring the oil into the drive links???For the whole length of the bar those triangle shaped drive links are driving the oil down, centrifugal force does not come into play until it reached the end, by then the tip has it's oil.
only stihl chain has that link feature, also the bar has a slight radius at the oil entry point to get the oil being driven outwards to the pins before going around the tip where it is a good amount flung off.then tell me..why the groove in the links,,that by physics,,would LIFT the oil UP, to bring the oil into the drive links???
Oh64's are OK....
I'm sorry i stirred the forum with my thread
What he said!!I think your thread has been enlightening and I'm glad you started it. I thought everyone greased the nose sprocket but this thread has shown that not to be true. It's the way my dad taught me and I know it works but I also believe not greasing works for others as well. If it didn't, there would be posts all over this place talking about nose sprocket failures.
I'm going to continue doing what I've done my whole life and grease the nose because it's cheap and quick and I know it works. But I see nothing wrong with someone who doesn't want to grease if it's worked for them in the past.
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