Back at it, this time with 84cc Dolkita

[redoakneck]

They still do. I got a reply back from Ed Danzer and They have 7 low pro sprockets from 7 pin thru 10 pin that they make in Oregon 7 spline large and Oregon 7 spline small. I'm not certain which one my dolkita will take but I'm thinking 7pin Oregon large will work. This is good news though I been wanting to try the lo-pro. I'll look it up later I'm going to bed.
By the way, Ed said let him know if I need anything else and they may add it to production in a few months. They are 28-30 bucks a piece-not bad if it sames me some time.

My 7900 takes a standard spline, not sure how big large is, 7/8 " I think is the I.D.

 

[redoakneck]

Also, when you are talking lo-pro you mean the chain from Granberg or is there a cheaper source??? Baileys is 24 cents a link (ripping chain) and I think granberg is 46 cents per link:bang:

How much faster is the lo-pro, 20-25%???

Thanks again,

Pete

 

[redoakneck]

OK, oregon large spline is the same as stihl standard which is an ID of 7/8"

 

[srcarr52]

They still do. I got a reply back from Ed Danzer and They have 7 low pro sprockets from 7 pin thru 10 pin that they make in Oregon 7 spline large and Oregon 7 spline small. I'm not certain which one my dolkita will take but I'm thinking 7pin Oregon large will work. This is good news though I been wanting to try the lo-pro. I'll look it up later I'm going to bed.
By the way, Ed said let him know if I need anything else and they may add it to production in a few months. They are 28-30 bucks a piece-not bad if it sames me some time.

I like mtngun cut down a .404 sprocket on the lathe. You have to have some really good carbide to do it but it's holding up fine.

 

[mtngun]

Also, when you are talking lo-pro you mean the chain from Granberg or is there a cheaper source??
How much faster is the lo-pro, 20-25%???

Thanks again,

Pete

I've been using Woodland Pro chain.

15% - 25% faster than 3/8.

 

[redoakneck]

Mtgun, since the pitch is .365, not .375, on 72 link .375 how many links for .365??? If the math is correct looks like I should add 1 link??

I may set this chain up on my mini mill first since all my long milling bars are .063 gauge... I have 4 bars 36" or larger and they are all .063, dang, I see what you mean by the lo-pro being a bit fiesty to set-up:tongue2::tongue2::msp_w00t:

 

[srcarr52]

Mtgun, since the pitch is .365, not .375, on 72 link .375 how many links for .365??? If the math is correct looks like I should add 1 link??

I may set this chain up on my mini mill first since all my long milling bars are .063 gauge... I have 4 bars 36" or larger and they are all .063, dang, I see what you mean by the lo-pro being a bit fiesty to set-up:tongue2::tongue2::msp_w00t:

3/8 low-pro is still 0.375" pitch. It will take the same amount of links as a normal 3/8's chain. The difference is the height of the link body from it's surface that it would ride on the bar to the pin. The low-pro chain has a much shorter body so the drive sprocket diameter has to be larger to make up the difference. Also on most sprocket nose bars the tips are too wide to properly spear and support the low-pro chain. So they have to be narrowed to allow the tip of the sprocket to go into the gap between the pins in the chain so the chain driver will sink in and be properly supported by the cradle faces of the sprocket tip.

Low-pro only comes in 0.050 gauge which limits your bar size to 32" for Oregon/Husky bars and 36" for Stihl ES bars. You can also get Cannon to make you a bar as long as you want in 0.050.

 

[redoakneck]

have you tried using oregon 91vxl? it has a longer cutter and is a bit taller.

I looked at this chain and it may work but would need to be ground so the cutters are 10 degrees or less. Grinding these cutters may be easier than changing the whole shebang to .365 pitch.


Have you milled with this chain???

 

[srcarr52]

I looked at this chain and it may work but would need to be ground so the cutters are 10 degrees or less. Grinding these cutters may be easier than changing the whole shebang to .365 pitch.


Have you milled with this chain???

I think 91vxl is still a 3/8 low-pro chain. They just have a slightly taller and longer cutter and the raker is moved forward on the chassis to compensate.

 

[redoakneck]

So mill down a .404 to a snug diameter for the lo-pro, makes sense and costs a lot less.

Any risk of snapping lo-pro with 28" hardwood and an 088 pulling hard???

 

[hamish]

91 vxl is just a version of 91vx with a longer cutter, 3/8" low pro that has fewer of the anti-kick back features found on most of the other 91 series saw chain. There are alot of different chains you may or may not find at your loacal dealer or online. 91P is a good example.

What was the root of the failure on the Dolkita Dan?

 

[mtngun]

Any risk of snapping lo-pro with 28" hardwood and an 088 pulling hard???

No one has ever tried lo-pro on a 120cc saw. I believe it would work (up to 36"), but there are no 0.050" bars available for the large Stihl mount, unless you want to have a bar custom made.

Hamish, the Dolkita had refused to start earlier this year. It seemed like the spark was weak and the plug would get wet and not even pop. After I took a second look at it, I found the L screw 3 turns out, which probably wasn't helping. Set it back to 1 1/4 turn and got it to run, though it continues to be a royal pain to start. If I'm lucky, I can get it on the 3rd pull. Almost never on first pull, and lots of times 6 - 10 pulls required.

 

[hamish]

Just a quick question on the Dolkita, when it starts can you walk away and have it idle till you come back? Once started can you let it idle on its side till you come back? Sounds like its getting too much fuel and its pooling in the base. Had a 257 with similar symptoms, hard as hell to start but worked like a champ once started, nothing more than a mild seal leak. At your elevation what is the humidity levels like (sorry never been to your neck of the woods)?

 

[mtngun]

Just a quick question on the Dolkita, when it starts can you walk away and have it idle till you come back?

Idle is not the best, but it will idle indefinitely.

Humidity 10% - 15% until the fall rains begin.

 

[brokenbudget]

I looked at this chain and it may work but would need to be ground so the cutters are 10 degrees or less. Grinding these cutters may be easier than changing the whole shebang to .365 pitch.


Have you milled with this chain???

nope haven't tried it yet. was thinking of it... just figured i'd ask before throwing down about 60 bucks for some

 

[cheeves]

084 jug was dinged at the floor of the exhaust port, but I'm hoping I can knock down the ding. No other damage to jug.

Crummy picture, but you can make out the divot at the bottom of the exhaust port.

Now I know why nmurph recommended the Mahle P/C.

 

[mtngun]

Now I know why nmurph recommended the Mahle P/C.

The 084 we were referring to is a Stihl.

The 84cc Dolkita jug has issues of its own.

 

[BIG JAKE]

Anyway I could get a contact # or e-mail for ed danzco???. I'm running an 8-pin 3/8 on my 088 and am going to try lo-pro and want a few lo-pro sprockets, prolly stay with an 8 pin??? 7 pin??? 10 pin:msp_tongue:

I need a standard 7 tooth (spline ) with an 8 pin rim

Yeah I can flip it but the guide is in the way when I am doing thinner boards.

You can contact Ed at : [email protected]

 

[redoakneck]

Mntgun, what kind of 36" 050 gauge bar are you running??? They are hard to find, is that bar for your stihl 084 with a large mount???


I am going to order an 8 and 9 pin stihl large (or oregon standard) rim that will fit on either my 7900 or my 088, just may use the 7900 because the large mount stihl in 050 is expensive.


I wish I had a machine shop!!! I also thought of using a rail squeezer to make one of my long stihl bars 050, but that probably is not a good idea.

 

[srcarr52]

Mntgun, what kind of 36" 050 gauge bar are you running??? They are hard to find, is that bar for your stihl 084 with a large mount???


I am going to order an 8 and 9 pin stihl large (or oregon standard) rim that will fit on either my 7900 or my 088, just may use the 7900 because the large mount stihl in 050 is expensive.


I wish I had a machine shop!!! I also thought of using a rail squeezer to make one of my long stihl bars 050, but that probably is not a good idea.

I was wondering the same thing. I recently acquired an Olympyk 999f that I would like to put on the mill but I would like to keep it universal so that means I need a big mount Stihl bar in 0.050 gauge and I'd like to make it a 36". Then I could just run a spacer for the Husky.

I know Cannon will make a 36" in 0.050 for the Stihl large mount according to their website. But I'm not ready to spend that kind of cash. Does Stihl make an ES bar in the 36" 0.050 for the large mount?

Squeezing the rails down to a smaller size will not work. Maybe for crosscutting but on a mill your cut quality would suffer greatly.

I ran my 32" low-pro setup this weekend on a cedar log with the 394 and it overpowered the chain. I was having to push really hard or run partial throttle to keep the saw from over-reving. I have a 5/50/0 grind with file-o-plate rakers. So Mntgun, do I go with more hook or take down the rakers?