Lo-pro + Malloff grind + 2 piece 066 = new CSM record

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mtngun

mtngun

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Finally ! It dried out enough to head to the woods.

The usual doug fir blowdown. 24" DBH.
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Three 12' logs. Knocked out the slabbing cuts on all three so that I only had to set the Alaskan for slabbing one time.
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Making sawdust.
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Another thread recently talked about whether drip oilers delivered enough oil.
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Was cutting at about 5500' elevation.
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mtngun

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Schweeet!

1 hour = ~ ? sqft of cutting?
The engine logged 3.4 hours run time, including the 2 minute cool down at the end of each pass.

I haven't figured out the sqft cut.

Progress was very slow on the first log because the mill was cutting slightly crooked and binding. It took me a while to diagnose and fix that, otherwise things would have gone faster.
 
mikeb1079

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nice one mg! that's an impressive day of slabbing. must feel good to make some steady progress. i love milling days like that. so the 066 is running right eh? sure looks like it. thanks for the pics.
 
mtngun

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so the 066 is running right eh?
Yes. It had been tuned to 12,500 WOT, but picked up RPM's as the day went on. I guess it was still breaking in, since it only had one or two tanks through it prior to this outing. Around mid-day, I turned the H screw out about 1/8 turn to richen it up, but at the end of the day, it was still easily topping 13,000 RPM.

It's not particularly torky at low rpm, especially with the aggressive chains I run. Lowest practical milling speed is about 7400 rpm. Any lower, and it's prone to bog. Highest while actually taking a bite was about 10,500 rpm. It spent most of its time at 9000 - 10,000 rpm.

With the Malloff grind and 6 degree rakers, the chain was grabby when starting the cut. Several times it bogged the saw while trying to start the cut. As the day wore on, I learned to start the cut ever so gently, and at a slight angle. Once the bar was buried in the wood, then the grabbiness went away.
 
hamish

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CSM'ing and the BF you got out of it, its definately a record............been estimating your bf. assuming reg box of 8', 18" tailgate, min 3" overhang from tail gate, and min board with of 8"...............and no bugs.................very nice haul!

Sorry I'm not a Stihl-head but how is 13k on an 066 as far as max rpm goes? will already assume it was tuned WOT at 12500 and set rich .................

9-10K in the cut...............any practical differences running a saw at altitude? anywhere I go here is max 1500' above sea level, avg 8-900.
 
mtngun

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how is 13k on an 066 as far as max rpm goes?
I normally tune my 066's to 12,500 WOT, which is a little rich. But this one is ported so who knows.

any practical differences running a saw at altitude?
Just less power. Sometimes the carb needs retuning, but that varies with temperature, too.

Johnny Utah said:
All that work and a beating on that saw just for barn siding, sheesh
Barn siding is an excellent application for home-brewed lumber. Try finding 24" wide boards at Home Depot. :msp_smile:
 
redoakneck

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Nice job!!! That is a LOT of wood milled there for one guy and one saw. Do you season and treat the wood before you use it or just build withit then paint or stain or treat the wood???


I am wanting to build a barn also and am trying to only use only hardwoods.

Good job man!!!
 

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