McCulloch Chain Saws

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Got to do some work on the 250 tonight. Got the carb kit installed and got the front tank cover off. Holy nasty gunk, Batman.

There had to be at least 1/2" of gunk on the bottom of the tank and the top half has a nice white coating on it.

Any advice on how to get this cleaned up would be most appreciated.
 
Splined Botls

I have only had one 125 appart and it had allen bolts.
All the 797's and that series had allen bolts.
The only ones i have seen with the spline bolts were
kart motors. But thats just what i have seen so far.



Lee

If you could send a picture of the bolt or nut you describe as "splined" I could be more sure but suspect that the nut or bolt is purely a 12 point style. Aircraft engines use them almost exclusively. If they're less than 1/4" in size, you'll probably have go shopping at the tool store for 12 point sockets.
 
Got to do some work on the 250 tonight. Got the carb kit installed and got the front tank cover off. Holy nasty gunk, Batman.

There had to be at least 1/2" of gunk on the bottom of the tank and the top half has a nice white coating on it.

Any advice on how to get this cleaned up would be most appreciated.

I tore two 250's apart this winter that were like that. Patience and a lot of Brake cleaner and compressed air.
 
If you could send a picture of the bolt or nut you describe as "splined" I could be more sure but suspect that the nut or bolt is purely a 12 point style. Aircraft engines use them almost exclusively. If they're less than 1/4" in size, you'll probably have go shopping at the tool store for 12 point sockets.

All of my SP125's have the splined conrod screws as described. A check of both the SP125 and SP125C IPL's indicates that the splined head screws were std on these machines - Part No. 110720.

Here is a photo of an SP125C big end showing the bolts.

The socket can be found on ebay from time to time. The McCulloch part No. for the tool is 85583.

Regards,

Chris.


188404d1308997448-img_1249-jpg
 
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Con-Rod Bolts

All of my SP125's have the splined conrod screws as described. A check of both the SP125 and SP125C IPL's indicates that the splined head screws were std on these machines - Part No. 110720.

Here is a photo of an SP125C big end showing the bolts.

The socket can be found on ebay from time to time. The McCulloch part No. for the tool is 85583.

Regards,

Chris.


188404d1308997448-img_1249-jpg

I stand corrected. Thank you. Never seen a bolt head like that but now I have something to look for. :msp_thumbdn:
 
It's been kinda slow in here... i think i am starting to have Mcculloch withdraws come on guys with this many members somebody's gota have something going on or at least a good Mac story to share.

Randy! I opened one eye and saw my second at the door, he called again, louder RANDY!. I said what? fighting to urge to kill him. Then he spoke the magic words "Hey, the call just came in, we gotta roll" It was just after 1am, I still had PBR flowing in my blood, but the thought of fighting fire cut through that. I sat up, hmmmm only had to pull the boots on. My second was a good man, he had the bus warmed up and the crew moving. I headed over to the shop to fetch the saws, we were going to Mendocinco, the load out was three 10-10s, two 660s and some other things, oh yeah, Homelites. Another 20 minutes and I was tearing through the warm night air, leaving a diesel smoke trail in our wake. 4 hours traveling south and we left the paved roads behind for log haul roads. I loved haul roads, the bus handled them well, power drifts were not unheard of. We could see the glow reflected off the convection column over the next ridge. As we topped the hill, we saw the fire, it was in old logged off land, with patches of remaining old growth. The fire was a hot one as we were in the second year of the great '70s drought. The Fire Camp was three tankers, two crew buses and a few pickups. We got our assignment from the Fire Boss and did the pre-fire ritual, which looked like a bar fight. We were a rowdy bunch, to get the blood flowing, well sometimes blood flowed. My guys knew their stuff and drew their tools. The word was that we were cutting line in the forward edge, using an old skid trail and anchored off the haul road. It was warm, maybe upper 70s, dawn was soon enough, a faint hint of the day to come. We commenced, it was brush mostly, I hung back and let the 10-10s do their thing. It wasn't long before the Sun popped up, the temps rose quickly, by 7am, it was closing in on the high 80s. My first kill of the day was a big Fir log, maybe 60", I gnawed at it with the 660, breaking a beer induced sweat. 20 minutes later I tied into a DF snag, burning of course. That was pretty much the pattern for a few hours, bucking big DF logs and dumping snags. The 660 had a 48" bar, the usual 1/2" chain, it could cut almost anything. By noon, it was hot, really hot, the going was getting tough, the ground was steep, the brush was thick. The 10s were having hissy fits, boiling fuel, hard starting, yee old vapor lock. The 660 didn't care, yet, it's time was coming though. We took a meal break, thoughtfully provided by the Feds, who invited us to this party. We managed to waylay a couple of them, they "volunteered". We entered a logged off zone, it had been cut in the mid '60s, that meant lots of debris. I sent my second back for the other 660, there were logs on top of logs....I spent the next two hours bucking 12 foot holes through the leftovers, did I mention that it was hot? This is about the time things got, well, interesting. amazing what a little change in the breeze will do. We went from chasing the fire, to defending our line. We pulled out the stops. With my second saw happily bucking old crap, I went after the standing hazards, big hardwoods and DF snags. The 10s caught up after their nap, good thing too, cutting brush with a 660 was not all that much fun. By late afternoon the heat and smoke was taking it's toll on us, we took a break. The 660 was getting temperamental, restarts were a touchy thing. Popping snapbacks, gouts of unburnt fuel, refusal to idle. Did I mention it was hot?
A patch of smoldering DF snags was tossing burning crap, can't have that now, could we? I grabbed one of the Feds, he had a piss-pump and his Federal thumb up his ass, time for him to earn his wages. I went after a 60" DF snag, burning nicely in places. As I started the undercut, I found it was hollow, and burning inside. The Fed drizzled a bit of water on it, with all the enthusiasm, as a guy with the clap, taking a leak. I get a wedge set in the backcut, had to give up on the Fed, worthless bastard couldn't pound a wedge to save his life, would probably hurt himself pounding his pud. Anyways, I was sawing one handed while tapping at the wedge easy like, the snag was fragile looking. So it was tap, look up, tap and look up. Yeah, and sure as ####, I tapped and looked up, just in time to catch a piece of burning bark, about the size of a dinner plate, right in the tinhat. Boy I'm telling you, that pissed me off! The Fed was stumbling around trying to tell me something, I hit him in the chest and knocked him down. I turned back to the snag and killed it. Only after that, did I figure out what the Fed was telling me. It was obvious enough, to someone not in a red rage. I had three rather deep lacerations, 18 stitches worth, the blood had flowed down my back, a startling contrast to the yellow Nomex. Did I quit working? Oh Hell no!
 
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Randy, you sure know how to keep a man interested in a story!


Also, wondering if anyone had a extra P&C for a 250 laying around?
 
D36

I know that the D36 was made in 1958-9 and is 80cc's but can anybody tell me much about this saw. The starter rope pulls of the middle of the top of it.
 
I know that the D36 was made in 1958-9 and is 80cc's but can anybody tell me much about this saw. The starter rope pulls of the middle of the top of it.

The D36 is somewhat of an interesting saw. McCulloch tried their hand at an early version of an automatic oiler with these, basically scavenging mix oil from the crankcase via impulse and using it as bar lubrication. I believe the mix for these saws was 10:1 on account of this.

They were soon pulled from the market with oiler issues and the D36A was put there in it's place.

There were also issues with the plastic pinion gear, which also led to McCulloch taking the saws off the market.



Chris
 
Got to do some work on the 250 tonight. Got the carb kit installed and got the front tank cover off. Holy nasty gunk, Batman.

There had to be at least 1/2" of gunk on the bottom of the tank and the top half has a nice white coating on it.

Any advice on how to get this cleaned up would be most appreciated.

I tore two 250's apart this winter that were like that. Patience and a lot of Brake cleaner and compressed air.

Did you use some kind of a brush to get that white stuff off? Seems like you need to get in there with a Whizzer or Dremel to get it off.
 
did i miss the story of you getting it? awesome.

He used it some right up into the early 1980s, but got too old to run it safely..
It's sat in the shed since, and I inherited it when he passed @ 83 years old.
Pretty sure it would fire right up, but it hasn't been started since the early 80s.

I warms my heart to know there's such a loyal following for the old girls..

BTW, my mother's maiden name (Grandfather's) was McCulloch.
 
Randy, you sure know how to keep a man interested in a story!


Also, wondering if anyone had a extra P&C for a 250 laying around?


I gotta bunch of weird stories, cobbling them together in some form of book, tough going sometimes. The spiders wrote that last night, took 15 minutes, pretty rough.


I don't have anymore 250 motors left, only whole ones.
 
Mac Withdraws

Thank you Randy i was in need of a good old time story and a glimpse into the past a perfect fix for my Mac withdraws.
-Cody
 
188350d1308963663-super-250-jpg


It shows up here... can anyone else beside me see it?

----------------

On a separate note...

The .030" over size piston will be on the way soon.

Hopefully the parts saw will follow shortly so I can get an idea of how much it'll be to sandblast and paint the pieces. I will watch, learn, and then do the blasting myself, but I'll let the pro do the paint. Might have some clear coats put on for extra durability, depending on how much it costs. From what I hear, clear coating is the most expensive part of a paint job.

Yes, I am going to be into this saw for a decent amount of money... (200 or possibly more...:dizzy:) It will be some time before this saw will be entirely done, with a roller nose bar to top it off, but I promise you, it will get done, and done well too.

I hate to say this, but since I have higher priorities (paying off student loans, gotta find a newer less rusty car/truck/jeep, etc.) chainsaws (yes, pretty much all of them) will be put on the back burner.
 
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