McCulloch Chain Saws

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Ive never seen anything like that oil tank crack. Great that it didnt hurt anything else.

Most I have seen appear to be cracked from someone trying to jerk a saw free. Not the case here, the tip of the bar was stuck tightly ten feet from the stump end of a live 85' oak 20" dbh. I couldn't see the saw from the tractor, and apparently, I sat the end of the tree down with the saw touching the ground first. Several thousand pounds plus the leverage of the bar was too much.

Ron
 
If your flaking chrome 805 has good compression I would run it. If you are wanting to be safe and it has no scoring, then I would contact US Chrome to have it replated. Should be about $200 to 250 plus shipping. If scored, or replating is not available, then thanks to vinny sleeving is available.

Ron
 
I had a mishap with my Timber Bear the other day while out cutting with my son.I'd had the saw out several times this month & had no problems with it since replacing the FW side seal.I fired the saw up & made a few cuts,then I heard the weirdest noise come from the recoil & the saw shut off.I looked down & saw the recoil half hanging on & off the saw & thought this can't be good.I always take more saws than I'll need because out of 4, 3 usually break down.My son likes to use the Husky 41,so we took that.The other 3 saws crapped out on me - Timber Bear,PM 310,& a Homie XL-103.I got back home & tore into the T.B.& found that 3 of the 4 screws that hold the recoil on either fell out,or broke off in the oil tank.I won't even bother with trying to get the screws out,so I've got one coming from Mark.

About 2 weeks ago I bought another Timber Bear on Feebay for $40.The seller said the recoil wasn't working & probably needed a new spring.I don't know what conditions the saw was stored in,but the recoil was seized tight,as was the oil pump rod,& the OPL.I had one helluva time getting the screws out that holds the recoil on.I worked on the recoil for quite some time & finally put a different recoil into the assembly.I had the original recoil in my vise & I'd sprayed it with Deep Creep & worked it a bit,but really got nowhere.I let it set in the vise overnight & let the penetrant do it's magic.The next morning I needed the vise & took the recoil out & just for the helluvit I pulled the rope & it came right out & retracted like a new one! Next was getting the oil pump rod out,that was fairly easy,but it just wouldn't go in the hole & work at all.I looked at the hole & saw it had some corrosion in it,so I curled up some sandpaper & rolled it around in the hole.The corrosion was gone,but after I got the rod back in it wouldn't pop out like it should.A couple drops of oil got it working nicely.The last seized part,the OPL was a bit tricky.I'd sprayed it down with Liquid Wrench a couple days before & it did nothing.I started popping the pin out that holds the OPL in place & it started to free up.I sprayed it down on top & bottom with Deep Creep & worked the lever & it got better.I tapped the pin back in & let it set overnight.The next morning it was working like new again.Now the carb wasn't even on tight,so I tightened it down & tried to get it to fgire,but got nothing.I thought to myself that there probably wasn't a gasket under the carb & when I took the carb off sure enough -- no gasket.I went through the carb & found nothing wrong.Apparently the PO took the carb off,rebuilt it & forgot to put the gasket back on.I made a gasket,put the carb on today & went to hook the fuel line on & it broke in half.So,I put a new fuel line in & fueled it up.8 pulls later I had a running Timber Bear!
 
I picked this up at an auction, but cannot find much info on it.
PRO MAC 850
Looks like it needs a recoil and spark plug boot.
Piston looks good.
Good saw? Are they hard to work on?View attachment 984209View attachment 984210
I picked this up at an auction, but cannot find much info on it.
PRO MAC 850
Looks like it needs a recoil and spark plug boot.
Piston looks good.
Good saw? Are they hard to work on?View attachment 984209View attachment 984210
The 850 is arguably the best 82cc Mac ever made. They were basically the last true 82cc 10 series saw made while McCulloch still owned the brand. If the cylinder chrome is in good shape you are golden. If not You will need to find one (which is difficult) or use it saw for parts for other saws.
 
The 850 is arguably the best 82cc Mac ever made. They were basically the last true 82cc 10 series saw made while McCulloch still owned the brand. If the cylinder chrome is in good shape you are golden. If not You will need to find one (which is difficult) or use it saw for parts for other saws.
Black n decker actually owned Mac by then and I'm convinced the PM saws are heavier due to black n decker cost cutting measures and cheaper materials. Nothing cheap about the 850s engine however thankfully

Every casting is heavier on a PM saw even the air filter lid
 
It's my opinion the 850 should of been the last development of the 82cc and the extra design time they spent for the 800 should of gone into a new design to fight with the 181 and other modern saws. The 800 as good a saw as it is was a old band-aided up dinosaur compared to the 181. Also 162se 266se.

Especially after black n decker made the power to weight worse .

Instead they band-aided the 82 and kept the 10 series going and gave us the dang 610.

That's why I'm not fond of the 610. That's to me the end that saw was what the engineers had been working on :(

I get it the idea. 10 saws sold 9 will be to homeowner Dave Jones.

Edit
A sp81 from 1973 had a better power to weight to fight the 181 compared to what was new mac stuff 10 years later. Brake and all
 
I picked this up at an auction, but cannot find much info on it.
PRO MAC 850
Looks like it needs a recoil and spark plug boot.
Piston looks good.
Good saw? Are they hard to work on?




View attachment 984210

Ten series have so many interchangeable parts that it is often difficult to tell what is original and what isn’t. Going on the appearance, I would say you have a SP 80 or 81 with an 850 decal lid. If it has points the it isn’t an 850. If it doesn’t have divided transfers it is an SP80. Ron
 
Ten series have so many interchangeable parts that it is often difficult to tell what is original and what isn’t. Going on the appearance, I would say you have a SP 80 or 81 with an 850 decal lid. If it has points the it isn’t an 850. If it doesn’t have divided transfers it is an SP80. Ron

I never noticed the SP brace on the bottom. We might have another fun game of guess that Mac.

Yellow tank and 850 type muffler
Is the hard plastic on the handle an SP thing?
 
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