McCulloch Chain Saws

[Maintenance supervisor]

Watched multiple videos of (plastic welding) online and got the courage to try it on the Titan 70 I got from the scrap yard for 8$.
Used a craftsman solder gun and the triangular tip, basically scooped and scraped melted plastic from the thicker areas into the crack after trenching it with the gun. I also sliced a sliver off the boot strap to add alittle.
Hope it holds when I take the clamp off.

 

[Maintenance supervisor]

View attachment 738149 View attachment 738150
Watched multiple videos of (plastic welding) online and got the courage to try it on the Titan 70 I got from the scrap yard for 8$.
Used a craftsman solder gun and the triangular tip, basically scooped and scraped melted plastic from the thicker areas into the crack after trenching it with the gun. I also sliced a sliver off the boot strap to add alittle.
Hope it holds when I take the clamp off.

Ok, I filled the tank with degreaser and had a few weeps , so I scavenged a few more strips from the boot strap I rewelded the spots and figured I would never likely get every air bubble out of the plastic so I gave it a good coat of 24hr epoxy for a sealant after sanding.
Tomorrow I'll see how it holds.

 

[rocketnorton]

dunno if redkote or the like works on plastic, but somethin inside might help.

 

[rocketnorton]

the little plastic weld ive done, was able to do both sides. zapstraps for fill.

 

[Maintenance supervisor]

the little plastic weld ive done, was able to do both sides. zapstraps for fill.

Yeah the only way to get the inside would be a liquid, whats redkote?

 

[vinnywv]

There's also the antivibe 10 series too which started with the cp saws "cushioned power) not sure exactly the year Mark will know but around 1969/70 and not sure if the cp55 was before the cp70 then was the 82cc saws. So basically there's two families and left hand pull after 1970 odd.

CP55 1969-1971
CP70 1969-1970
CP70L 1970-1972
CP125 1969-1971
CP125S 1970-1971

According to acres internet site.

 

[davidtown]

My son and I were able to cut some Juniper today. Ran all 3 saws. The 125 was not needed today but I used it anyways cause it was there. The 81 worked really well and the 555 did just fine. Came away with a full truck load in about 3hrs of work. Not sure if that is good or bad for Juniper.

 

[rwoods]

Good to have your helper along. Ron

 

[Little Jerrry]

Bought a rebuild kit for the Tilortson HS127A that seems to be on this 7-10A....noticed there is no impulse line. Is this just because the carbs were gravity fed on these older saws and the cylinder vacuum actuates the diaphrams etc within the carby?

Also are the black McCulloch branded bars a vintage item and no longer available to purchase new?

 

[rocketnorton]

Yeah the only way to get the inside would be a liquid, whats redkote?

coating mostly used here for leaky tanks. either gaskets, or corrosion. dunno if it sticks to plastic, tho. thought someone here mighta tryed it.
give it a little time, sure it's been tryed.
in the hd world, it was used to seal pourous alum crank cases, too.
i think red kote is the trade name.

 

[vinnywv]

Bought a rebuild kit for the Tilortson HS127A that seems to be on this 7-10A....noticed there is no impulse line. Is this just because the carbs were gravity fed on these older saws and the cylinder vacuum actuates the diaphrams etc within the carby?

Also are the black McCulloch branded bars a vintage item and no longer available to purchase new?

Jerry, bars are vintage. Stencils can be bought or if youre artistic enough you could paint your own bar to match the old ones. With a bit of file work modern bars can be made to fit and work fine.
The impulse on your 7-10 is from the vacuum but when you removed the carburetor there is a small hole on the fuel tank where it mounts to. And a matching hole (slot) on the carb body. That hole is your impulse. They line up with a gasket also and create the fuel pump action. They are not gravity fed.

 

[Brian Thacker]

Mark: Here would be a good one for your collection. Never had fuel in it.

More pics of the never fueled sp125 that belonged to mikes grandpa. Mikes selling the saw for his grandmother who’s going to assisted living here pretty soon. This saw is going to be listed on eBay pretty soon. I was honored just to be able to check it out.

Brian

 

[vinnywv]

Holy crap batman!! Thats a pile of 125's! That would be fun to go through.

 

[heimannm]

I will keep my eyes open.

Mark

 

[Jasonrkba]

Hey guys. How do I tell the age of my mac?

 

[rocketnorton]

like that sticker on oil tank.

 

[edju1958]

I will keep my eyes open.

Mark

View attachment 738370 Hey guys. How do I tell the age of my mac?

Cut off one of the parts & count the rings.Lol
Ed

 

[PogoInTheWoods]

Hey guys. How do I tell the age of my mac?

PM610? Late 70's to mid 80's. Depending on the carb, there may be a date code stamped on it that could narrow it down some. No date code in Mac serial numbers.

 

[Jasonrkba]

I need to rering and the rings changed in 1984.

 

[Jasonrkba]

HDB Walbro carburetor. It came with the yellow air filter cover. I haven't seen a lot of those.