McCulloch Chain Saws
- Thread starter Bruce Hopf
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I won’t post my first reaction.
Ron
Ron
Now you know how some of the rest of us normally feel when trying to type!
Get better soon.
Jethro,only you could think of that,LMAO!I was thinking of much worse things than typingyou'll be good at left hand wiping after this
Cheat...I was thinking of much worse things than typing
use wet wipes.
I had some visitors this weekend. Bobby Framke, Shane ? (sorry man), Bob Fredette, Greg Mader, and Geoff Framke. Bobby recently completed the restoration of Bob's SP125. Quite a beautiful piece of work.
Bobby also brought along his customized PM800 and his sleeper 1-10 with a PM700 powerplant hiding under the covers.
A good weekend even if we didn't get any saws cleaned up and moved into the museum.
Mark
Bobby also brought along his customized PM800 and his sleeper 1-10 with a PM700 powerplant hiding under the covers.
A good weekend even if we didn't get any saws cleaned up and moved into the museum.
Mark
And the SP81 wins the prize!
North East Tennessee MAC Report
Beautiful day in North East Tennessee yesterday with short sleeve temperatures, I wasn’t supposed to be cutting due to family obligations – but wood lot wanted wood and some of the kids wanted to go shooting so off to the range I went. Found the ground too wet to get up the hill, just as well as the truck wouldn’t start as usual. I staged a few logs with the Deere and I then took on a MAC worthy dead ash I had been saving (about 28”). But as before, I pulled the trigger on the 800 and the linkage let go. Most of you will know where this is going, younger guys might not, but they will one day. Last week, Brian and I noted that the bar didn’t run parallel with the saw’s center line. We both thought the bar had a slight bend it – probably from the violent ride it took earlier in the season. Anyway, yesterday I thought to myself there has to be something going on that he and I missed. Finding a sunny spot, I could see that the trigger was intact but the linkage was just out of place with some side tension. Upon closer exam, I discovered that the rear a/v cushion was now on the wrong side. A few years back I had put machine screws in both A/Vs as they were both busted. This patch worked well until now. Despite both being screw-less and busted I was unable to twist the saw enough to fix it in the field so a tear down is in order together with a close inspection of the intake boot.
Among many things I don’t do well is sharpening chains, especially with a file. The many videos of the new off-brand Hexa chain have caught my attention as it seems like a filing method I can master. I haven’t been able to get my hands on any chains or files so down in the lab I have made a few of my own hex chains with a grinder. Dressing the wheel eats up a lot of the wheel as does the first grind. Ideally, the wheel should be dressed frequently. Nonetheless, as they say on Forged in the Fire – the chain, “it will cut.” So far, I haven’t experienced the longevity claimed and have found it cuts great until it doesn’t – doesn’t in the sense it doesn’t cut – almost an on/off switch effect unlike other grinds that get dull but will still cut or at least chew. I will have to do some more work on the grind. Back to sharpening in general, surely I am not the only one to grind a bunch of chains in poor light that feel sharp but don’t cut well only to find in the light those little reflections that show the teeth needed just a bit more grinding to restore the corners. Eye-balling a chain for sharpness beats relying on touch. But dim eyes need light.
The MAC worth tree fell to an off-brand; it yielded a 35’ stem of solid wood just over bar length at the top cut (25” bar) with the rest of the top exploding upon impact.
I cleared a loading spot on the hill with the bulldozer while the kids were shooting. I emphasize to my daughters to shoot for consistency first and once consistent then work on getting on target. My oldest daughter proudly brought home her 100 shot group to show me how much she has progressed with a pistol. I pity any poor criminal that breaks in on her.
With the season ending and the PM 700 laid up, I am looking forward to some free time in the lab. Who knows what mothballed project I might revive.
Be safe,
Ron
Beautiful day in North East Tennessee yesterday with short sleeve temperatures, I wasn’t supposed to be cutting due to family obligations – but wood lot wanted wood and some of the kids wanted to go shooting so off to the range I went. Found the ground too wet to get up the hill, just as well as the truck wouldn’t start as usual. I staged a few logs with the Deere and I then took on a MAC worthy dead ash I had been saving (about 28”). But as before, I pulled the trigger on the 800 and the linkage let go. Most of you will know where this is going, younger guys might not, but they will one day. Last week, Brian and I noted that the bar didn’t run parallel with the saw’s center line. We both thought the bar had a slight bend it – probably from the violent ride it took earlier in the season. Anyway, yesterday I thought to myself there has to be something going on that he and I missed. Finding a sunny spot, I could see that the trigger was intact but the linkage was just out of place with some side tension. Upon closer exam, I discovered that the rear a/v cushion was now on the wrong side. A few years back I had put machine screws in both A/Vs as they were both busted. This patch worked well until now. Despite both being screw-less and busted I was unable to twist the saw enough to fix it in the field so a tear down is in order together with a close inspection of the intake boot.
Among many things I don’t do well is sharpening chains, especially with a file. The many videos of the new off-brand Hexa chain have caught my attention as it seems like a filing method I can master. I haven’t been able to get my hands on any chains or files so down in the lab I have made a few of my own hex chains with a grinder. Dressing the wheel eats up a lot of the wheel as does the first grind. Ideally, the wheel should be dressed frequently. Nonetheless, as they say on Forged in the Fire – the chain, “it will cut.” So far, I haven’t experienced the longevity claimed and have found it cuts great until it doesn’t – doesn’t in the sense it doesn’t cut – almost an on/off switch effect unlike other grinds that get dull but will still cut or at least chew. I will have to do some more work on the grind. Back to sharpening in general, surely I am not the only one to grind a bunch of chains in poor light that feel sharp but don’t cut well only to find in the light those little reflections that show the teeth needed just a bit more grinding to restore the corners. Eye-balling a chain for sharpness beats relying on touch. But dim eyes need light.
The MAC worth tree fell to an off-brand; it yielded a 35’ stem of solid wood just over bar length at the top cut (25” bar) with the rest of the top exploding upon impact.
I cleared a loading spot on the hill with the bulldozer while the kids were shooting. I emphasize to my daughters to shoot for consistency first and once consistent then work on getting on target. My oldest daughter proudly brought home her 100 shot group to show me how much she has progressed with a pistol. I pity any poor criminal that breaks in on her.
With the season ending and the PM 700 laid up, I am looking forward to some free time in the lab. Who knows what mothballed project I might revive.
Be safe,
Ron
I looked at your 800 and thought it might be off, but I know it took a ride a few weeks back and the bar would also be bent. You should have called me and I would have brought you a saw and helped you a while.
I am thinking about taking the family up there and fire a few rounds. I more than likely cannot hit the target at 25 yards. Getting old sucks. Cannot see and my hands shake. At one time I could shoot fairly well. Now days I don't do very well and have not shot a gun in a while.
Your daughter done well. I pitty anyone that would try to break in on her.
Brian
I am thinking about taking the family up there and fire a few rounds. I more than likely cannot hit the target at 25 yards. Getting old sucks. Cannot see and my hands shake. At one time I could shoot fairly well. Now days I don't do very well and have not shot a gun in a while.
Your daughter done well. I pitty anyone that would try to break in on her.
Brian
matt_lamb_160
ArboristSite Operative
And easily at that!
Jacklefty
ArboristSite Operative
Hello all! I’m rebuilding a pro Mac 850 from a hodge lodge of three different saws and I’ve ran into a problem with the cylinder set not sealing against the oil tank. The cylinder set is an 850, the crank and bearings out of a 800 and the oil tank off of an 800 as well. The locating pin is seated in the pocket on the smaller bearing but it is still not seating all the way down. I’m sealing it with motoseal grey any one that is more expierwnced with the 800/850 series k ow what’s goin on? Thanks very much!
Id guess off the top of my head, how much sealant are you using? Something not lined up just right. Ive seen the same symptom and just moved a few things a teeny bit and it seat right in there. There should be no problems mating up the surfaces. The amount of sealant is a very thin layer. The pin has to be sunk into both holes as well. Tank and bearing ring. Just a couple things to check.
You can try to flatten both surfaces with a sheet of emery cloth on a smooth flat surface like a piece of glass to make sure the mating surfaces are true.
I had a similar problem with a DE80, I ended up using a different oil tank.
Mark
I had a similar problem with a DE80, I ended up using a different oil tank.
Mark
How's the thumb mark?
I have had to fiddle with them on occasion myself. But so far I have always gotten them to seat with a bit of finesse and determination. Vinny nailed it just tweaking position a bit should make things mesh well.
It should seat perfectly unless there's a micro-obstruction or deformity of some kind. Grab a magnifying glass for a closer look. Also, do a vac/pressure test after you have things sorted out / tightened up and the seals installed. Could save you some major aggrevation before putting the rest of the saw together.
Thumb seems to be O.K., still in a cast so I can't do much with it. The fingers on my right hand are being seriously overworked (think buttons, zippers, doorknobs, etc. without a thumb...) to the point I had to take some dual action Advil yesterday and last night. Manipulating a mouse is also a challenge but since I can't turn wrenches or pull starter ropes is seems getting caught up on documentation and correspondence is the best I can do.
Mark
Mark
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