A question on two homies, super1050 - C-72

[bugfart]

Both take .404 and I was wondering the merrits/possibility of fitting them with .375 and maybe 8 tooth sprockets.

I might want to do some lite milling with the 1050; any tried and true experiences? Or maybe good advice you would have thought was common sense?

 

[bugfart]

OK, pretend it is painted white.

 

[HiOctane]

In the Oregon book,the 1050 is available only in .404,but i was milling ,i would run a 7 th giving you less load on the engine.

 

[hoss]

The .404 you are running, is it 63 guage?If so the .375 may have a narrower kerf, other than that I can't think of a clear cut advantage.Maybe availability is better in your area with one than the other.I agree with Hioctane about the 7tooth over the 8 for your milling.The c-72 may benefit from the 8tooth(possibly a little more chain speed).



Saws
mc 550
mc 1-53 (2)
mc 73
mc 10-10
mc pm610
mc d44
mc g-70
homie 990g
homie770gs
homie c-51
homie super2
old lombard(running!)
david bradley(restored,running)direct drive
pioneer 700d
remington pl6
remington super754
sears pos 3.7
the only ones not running and useable are the mc73 and d-44.(soon to change)

 

[weimedog]

Last fall I ran my c-7 with a .404 chain & 36inchbar thru some Ash
slabs. It wasn't pretty. On a 22inch wide slab aprox. 14ft long I ran
out of chain lube. Had to get creative to get oil in that rig without
pulling completely out of the log. Really didn't have the power either
for the big stuff...maybe soft wood or slabs less than 24inches.

The one reason my C-7 will probably see some milling duty...even with
its limitations..is because it had almost no vibration and didn't numb my hands.
I plan to use it on small stuff. Easy starter, Low vibration. Nice smooth saw.
(Just is real heavy feeling as compared to the Mac...even if it truely isn't that much heavier. Don't know why)

My XP1020 does have the power. And will cut fast enough where it
makes the same cut with oil to spare.

Solution is to add an accessory chain oiler to the milling rig.

If I could get a conversion for my XP1020 to 3/8 AND get a 36inch
bar, it would be a wonderful milling powerhead. I have my McCulloch
with a 36inch bar and 3/8 skip chisel chain...it will get though that same
sized ash log in half the time as the poor old C-7 with .404 chisle chain.

As far as sprocket size...with a saw in the power range of a C-7, just keeping
the chain moving is a reasonable goal..shooting for more potential chain speed
will just make that clutch burn faster. Go with the 7 tooth.

If you get that 1050 conoverted over to 3/8...maybe but I still would shoot to
minimise the stalling potential, go with 7. If your in softer wood maybe an 8 tooth.

 

[bugfart]

Merry Christmas to ALL.

Is it possible to go to .375 on the 1050? I mean realitically expecting to find the parts, not can it be done?

Oregon only offer 8 teeth on the models i listed... drats.

 

[weimedog]

Thats the issue...trying to convert a XP-1000,1020,1050 over to 3/8.

Might be worth getting an N/C mill and cranking drum/sprocket adapters
out for us loony tunes who use these old monsters for real.

Thats one of the reasons my McCulloch so important..I could convert it over to 3/8.

 

[ol'homey]

I converted my c-72 to a rim sprocket with GB part # ho108lca7n
This center drive comes with a 7T 3/8" rim. But I usually run an 8T 3/8" with the 21" hard nose bar.
Does anybody make a roller tip bar for these old homies?

 

[weimedog]

I converted a wide .404 Stihl bar to fit my C-7. Had to drill oil holes
and I used nuts where the distance across the hex fit into the bar
and drilled the center to slip fit the bar mounting studs on the saw.
I had to grind them to the thickness of the bar. Works fine. Now
there is a source of roller tip bars for that saw. Of course I have
a .404 sprocket.

Is this a part with the roller bearing riding on the crankshaft? Or
do you have a bushing/spacer on the crank and the Drum's bearing
riding on that bushing???

 

[ol'homey]

On the c-72 the crank has a sleeve or spacer that the sprocket roller bearing rides on. The rim sprocket system that I used was a direct replacement for the original spur sprocket. The roller bearing in the rim sprocket rides on the sleeve just like the original spur sprocket did. BTW any idea if this sleeve is still available? After 36 yrs. mine is showing some wear and the new roller bearing is kind of a sloppy fit on the sleeve.