McCulloch Chain Saws

[heimannm]

At the Iowa GTG last October, I was running my 77 beside Steve Stokes 650 gear drive. He was complaining that he could not hear his saw in the cut so I turned around and aimed my exhaust away from him...he still could not hear his saw...

Some of the modern, high speed saws with mufflet mods are also unpleasant to listen to but I think in their case it is more the pitch than the volume, rather like being in a room full of screaming women.

I mentioned this before, son Jeff walked past the 1-85 when I was running it on the bench and he complained the thump from the exhaust made his chest hurt. Now that is a sound you can really feel.

At a GTG in the fall a few years ago I fired up the 1-85 and the leaves started falling off the trees. If Ray comes back he can verify this fact.

Mark

 

[jerrycmorrow]

...At a GTG in the fall a few years ago I fired up the 1-85 and the leaves started falling off the trees. If Ray comes back he can verify this fact.

Mark

okay that's one for the books. iowa leaves are sissies; gettin scared off a tree by a little ole saw. lol

 

[rwoods]

okay that's one for the books. iowa leaves are sissies; gettin scared off a tree by a little ole saw. lol

If you were a tree I bet you would let go of something when a mighty MAC revs. Ron

 

[jerrycmorrow]

If you were a tree I bet you would let go of something when a mighty MAC revs. Ron

well i ain't a tree and i might still let go of something when a mighty mac roars

 

[madrone]

I'd like to join in the conversation but just got a project 125 running today and can't hear a thing you guys are saying.:msp_drool:

 

[HeRoze]

I was googling trying to ID my flatback (it is 'different') and saw this showed up...

this mac has a face.

 

[promac850]

If you were a tree I bet you would let go of something when a mighty MAC revs. Ron

well i ain't a tree and i might still let go of something when a mighty mac roars

Hmm... as a human, that would be urine...

As a tree, you'd be dribbling sap all over the bottom of your trunk/top of your roots and onto the ground...

 

[rheima]

Iowa GTG

What Mark says is true. It was a very still morning and not too much cutting had been done yet in that area with big saws. I honestly thought it was one of his 125s though. Anyway, he started cutting a good sized log and the dead leaves started to rain down. I laughed so hard I about lost some coffee. Several of the other guys there noticed it also. We were not smart enough to take pics! Sorry Ray

 

[cpr]

I'd like to join in the conversation but just got a project 125 running today and can't hear a thing you guys are saying.:msp_drool:

I said pics or it didn't happen!!!!

 

[promac850]

I said pics or it didn't happen!!!!

He probably can't hear you. :hmm3grin2orange:

 

[cpr]

He probably can't hear you. :hmm3grin2orange:

LISTEN UP DANGIT!

 

[madrone]

I said pics or it didn't happen!!!!

It's a bit dark out there in the shop but i'll try to comply after I get some food in my face.


And, i didn't think this was the 'wild thing' thread!!!

 

[cpr]

It's a bit dark out there in the shop but i'll try to comply after I get some food in my face.


And, i didn't think this was the 'wild thing' thread!!!

Piorities, priorities. Congrats and looking forward to it! Rep on the way.

Oh, but it is the Wild Things thread! The REAL Wild Things, may they haunt you and us all (Vincent Price laugh goes here).

 

[struggle]

35A help needed.....I put the carb plate all back together and used a little vasoline on the check ball valve to make sure it stayed in place.

Today I tried starting the saw and it would only fire when feed fuel down the spark plug

I pushed the primer rod multiple times and it clearly is not getting fuel there. From I saw in the tank it has some type of felt/wicking fuel pickup? Is there more to this? I never removed the bottom pan on the engine. I filled the tank full as fuel. IT looked very clean in the tank.

Also the main jet that screws/adjusts from the bottom I tried to adjust it like the manula shows by sticking the primer rod in the hole and backing it out but it never seemed to stop at any point like the sheet showed:msp_confused: I also misplaced the thin locking nut that goes on that as well. Once I do get it running is there a way to adjust it like we do a normal saw?

 

[madrone]

I said pics or it didn't happen!!!!

So, I said the shop is not the best lit. But here are some pics of the new addition. Included is one with her much prettier twin sister.

Story is I picked up the 125 carcass from a guy that used to work at a Longview saw shop (think old school). It was covered in 10 pounds of old growth dust and oil, not wanting to pull over and with little hope it seemed. Came with the pictured 15 (beautiful but still not worked on). Don't ask the price for the pair, you'll kill me.

One of the bolts holding the straps to the points had stripped loose and made a mess and probably lots of noise most likely grounding the saw. While sitting, gathering dust the muffler fell apart into the cylinder making it worse.
I took the saw down to the block thinking i'd have to split it and re-ring etc but after flushing the cylinder 1/2 a dozen times managed to get the piston moving smoothly. Also found that the points were pinched and not closing all the way and the flywheel needed some cleaning up where the screw had bounced around. Also needed to tap the stripped hole, clean the carb, restore the recoil, etc.......

So, after scraping all the gritty 'history' off the saw, I got the spark to finally fire and lo and behold, after sitting for probably 15+ years,,,,, another 125 lives, and makes some serious noise!

 

[Eccentric]

At the Iowa GTG last October, I was running my 77 beside Steve Stokes 650 gear drive. He was complaining that he could not hear his saw in the cut so I turned around and aimed my exhaust away from him...he still could not hear his saw...

Some of the modern, high speed saws with mufflet mods are also unpleasant to listen to but I think in their case it is more the pitch than the volume, rather like being in a room full of screaming women.

I mentioned this before, son Jeff walked past the 1-85 when I was running it on the bench and he complained the thump from the exhaust made his chest hurt. Now that is a sound you can really feel.

At a GTG in the fall a few years ago I fired up the 1-85 and the leaves started falling off the trees. If Ray comes back he can verify this fact.

Mark

Great analogy Mark. Funny, but I don't remember that 77 being any louder than my 650. I only ran it briefly, and didn't yet have my 650 at that time however. Maybe it had to do with the higher placement of the 77's jug and muffler. Should have threatened to put a stack on it! 120cc of roaring McMuscle.

35A help needed.....I put the carb plate all back together and used a little vasoline on the check ball valve to make sure it stayed in place.

Today I tried starting the saw and it would only fire when feed fuel down the spark plug

I pushed the primer rod multiple times and it clearly is not getting fuel there. From I saw in the tank it has some type of felt/wicking fuel pickup? Is there more to this? I never removed the bottom pan on the engine. I filled the tank full as fuel. IT looked very clean in the tank.

Also the main jet that screws/adjusts from the bottom I tried to adjust it like the manula shows by sticking the primer rod in the hole and backing it out but it never seemed to stop at any point like the sheet showed:msp_confused: I also misplaced the thin locking nut that goes on that as well. Once I do get it running is there a way to adjust it like we do a normal saw?

There is a fuel pump assembly in the tank as well Shane. I can't remember if the primer on those saws draws right from the wick filter, or through the fuel pump. The 77 primer drew straight from the tank.....independant of the wick and pump.

 

[cpr]

Good job on the 125 rescue. A little rub down and that 15 looks nice, too.

 

[watsonr]

Nice job on the 125!! I know how much you paid and will let you spill the beans..... i did have another piston here for you on stand-by. What did the compression come out to be?

 

[madrone]

Nice job on the 125!! I know how much you paid and will let you spill the beans..... i did have another piston here for you on stand-by. What did the compression come out to be?

You know testing the compression on these saws is about as awkward as it gets, wobbly bottoms, starters that pull backwards, testers where your foot goes... Plus without the comp release pushed, it fights back, hard.

The best I got was 120 but I could only get one cycle per pull without hurting myself.
I still need to close up the points a little to help with timing which should ease the starting. Then maybe after it runs a little the compression will pick up.
Regardless, I still might need that piston.

 

[watsonr]

Run it a little bit and see how she goes, the ring may just need a little lube to get her loose again. Its here when needed.