Chainsaw Repair

Wild262, looks like you missed my last post while you were posting yours
Like I said you won't break the LoPro Picco. Looks like you got some bars with the 3/8 LoPro noses. Now all you need is a LoPro rim in small 7 spline which is not available.

This is my best advice.
Buy a Stihl 3/8 Picco 8 tooth rim part#0000 642 1241
Machine out the mini 7 spline bore big enough to slide over your 346 drum splines. Line up the rim on the drum in line with the b/c. Silver solder it in place.
You may possibly be able to cut the seven splines in the bore to avoid the silver soldering.

Trouble with small Huskies is the out board clutch drum splines have to mesh with the oil pump worm gear.

Sounds like a lot of trouble.  Just run the standard 7T 3/8 rim. Keep the chain sharp and keep an eye on the tension.

Hea Holmen, this is a pleasant surprise!   I was hoping to hear from you tonight.  I see where you sent me a message bout same time I sent one.  I left the house to work awhile on those treetops.  You know I do remember reading your post about milling with a 660 some time ago, but had forgot you were using the 3/8lp chain.  If I recall it was for a smoother cut I think.  So you never broke one!  That's good to hear.  If it would stand up to milling with a 90cc+ saw, than I have nothing to worry about.  That's increditable.   Now your only talking about the Stihl picco PS3 (63) correct?   Did you try any other 3/8 LP?  I have quite a lot of this.   As far as the bar goes, I have a 16, 18 and a 20" I can modify to make it work.  Your idea on the ring gear & clutch drive is a good one which I might do if I have trouble with the standard 3/8ths.  Thanks a lot sharing that with me.  This is what I was hoping to do, was to discuss this with someone who actually did it.  Are you still milling with this setup?  I have a box full of Huztl 660 parts I need to assemble one day soon after I get a few more projects done.  I can thank Weimedog for that.  I'm hoping to use it to mill someday as well.  This chain I have just may get used for that as well.  Very happy to hear from you Holeman.  Thanks