McCulloch Chain Saws

[a. palmer jr.]

Well after I got back from the Y I decided to go ahead and make a gasket for the tank instead of buying one. It turned out pretty well. I spayed several coats of copper gasket sealant to both sides of the gasket before installing it.

I've made small gaskets before but not one like that! Would you mind sharing with us how you did it? I need one for my 1-42. I just used sealer on it but doubt it will hold.

 

[stinkbait]

I've made small gaskets before but not one like that! Would you mind sharing with us how you did it? I need one for my 1-42. I just used sealer on it but doubt it will hold.

I took a roll of gasket material that I have and rolled out some on a flat surface. Then I took the top to the tank and pressed it down on top of the material. Using a mechanical pencil, I traced the exterior of the tank and all of the bolt holes. Then I picked up the tank top and sketched in the rest by hand. Turned out good for my first one.

 

[ric5141]

I took a roll of gasket material that I have and rolled out some on a flat surface. Then I took the top to the tank and pressed it down on top of the material. Using a mechanical pencil, I traced the exterior of the tank and all of the bolt holes. Then I picked up the tank top and sketched in the rest by hand. Turned out good for my first one.

What did you use for a hole cutter? That one looks perfect! Nice job on it

 

[promac850]

What did you use for a hole cutter? That one looks perfect! Nice job on it

Probably a leather punch. I've got one and it works excellently to make a hole perfectly round, and tight enough to hold the bolts in place.

 

[stinkbait]

While waiting for the tank gasket to dry good on the 440 tank I decided to try and remove the flywheel to clean & check the points. Well the flywheel nut came off easy, but the flywheel will not come off. I have my puller on there with a lot of pressure and it won't pop. Anyone have any ideas. I have turned my puller to the max and I'm scared to try and turn it any further. I have also tapped on it with a small hammer. It's just sitting with tension on it now and a little penitrating oil.

While waiting on that crankshaft I decided to start tearing down the free SP81 I got this weekend. It was locke up tight. Made it easy to remove the flywheel and clutch nut though. Come to find out the water had a little crankcase in it. lol.

It also had a piece of tygon in the top of the cylinder.

It is my understanding that when there is surface rust and any pitting at all on any bearing sufaces then they are worthless. Is this correct?

Then good news is that the cylinder cleaned up great. These SP81 cylinders aren't cheap.

 

[stinkbait]

Probably a leather punch. I've got one and it works excellently to make a hole perfectly round, and tight enough to hold the bolts in place.

You, sir, are correct.

 

[briantutt]

Stinky,

Now that you have all that pressure on the puller you just have to give it a reall good smack on the end of the center bolt. (Harder than you think you should)

Be mindful of where things are and do it over a board or something soft so when it all flys apart you won't break the flywheel ort ding the crank or something.

 

[a. palmer jr.]

I took a roll of gasket material that I have and rolled out some on a flat surface. Then I took the top to the tank and pressed it down on top of the material. Using a mechanical pencil, I traced the exterior of the tank and all of the bolt holes. Then I picked up the tank top and sketched in the rest by hand. Turned out good for my first one.

I'd say it turned out better than good, that looks like factory! Not sure I could draw freehand that good but may get my chance if the sealer on my tank doesn't hold.

 

[a. palmer jr.]

Stinky,

Now that you have all that pressure on the puller you just have to give it a reall good smack on the end of the center bolt. (Harder than you think you should)

Be mindful of where things are and do it over a board or something soft so when it all flys apart you won't break the flywheel ort ding the crank or something.

I hate to say this but I used one of those flat crowbars to get mine off my 1-42. It looks like yours, I pried under the flywheel and tapped the end of the crank, with the nut on flush so as not to mess up the threads. Turned the flywheel and pried on several different spots before she finally popped loose. It didn't hurt anything but I was careful what I pried against.

 

[dieselsmoke]

Stinky, since you've got the time, let that pennetrating oil soak in for a day or two. A solid whack with a ball peen should make it pop. I let one sit with the puller for two weeks once. one Saturday morning I gave it a hit and presto. The Mall 10, not so lucky, but that's another story.

 

[briantutt]

Stinky, since you've got the time, let that pennetrating oil soak in for a day or two. A solid whack with a ball peen should make it pop. I let one sit with the puller for two weeks once. one Saturday morning I gave it a hit and presto. The Mall 10, not so lucky, but that's another story.

I agree with this. Sometimes when pulling flywheels of old Scorpions you could let them sit with penetrant and pressure from the bolt and they would pop on their own sometimes.

 

[dieselsmoke]

Feeding Frenzy!!

A Super 797 at that.

I doubt we will see this again. And I doubt I'll have the opportunity. Super 797 had 4 bidders after it hit $475 dropped to three at $575. PM800 had 3 bidders at $430 - 2 after $520 one of whom bumped it straight from $530 to $710.:msp_ohmy:

Ron

Sombody's watching this. Now there's three 82cc saws a 70cc, many 54 thru 60cc saws newly listed on the bay.

 

[leeha]

Sombody's watching this. Now there's three 82cc saws a 70cc, many 54 thru 60cc saws newly listed on the bay.

And i'm waiting to see if anymore 797's show up
after this last one sold.



Lee

 

[dieselsmoke]

OOOOh yeah, I'm sure a few owners sat up and took notice of that auction. Is time to liquidate that inventory?

 

[stinkbait]

Well I went back out to the garage and messed with the flywheel on the 440 again. I was able to turn the puller a little bit tighter and then she popped. I cleaned and reset the points, and have great spark now.

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I also tested the compression while the plug was out. Came up with 150psi.

 

[dieselsmoke]

Man that saw looks clean! I'm a wee bit jealous. Most of my vintage saws look a little war--torn.

​

Good hot spark, you're almost done.

 

[stinkbait]

Been busy at it some more

Well I worked on the SP81 block some more. I ported it and painted it black. Now all I need is a crankshaft, rod, bearings, and piston assembley.

I also fixed the leaky compression tester with some valve grinding compound. Then I tested it out with my compression tester. Holds pressure good now.

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[RandyMac]

So, "it's on" with the 82cc.

I talked to the Bro yesterday, twice, in person. Mostly what I got was his recent Bigfoot hunting stories and stories of hippie harassments. I swear, he takes a special trip to Arcata, just to bother hippies on the plaza.
We did talk about the 10-10s during a rare lucid moment. The station got 8 new 10-10s, my Bro and the equipment foreman named Les, took half of them to "tune up". I didn't know that Les was a Kart guy, we didn't get along, he had to deal with my breaking of his vehicles. Eh, which I heard about from the Station Captain, who loved the sound of his own voice.
Back to the 10-10s, 4.5 degrees advanced timing, carbs rejetted, mufflers rebaffled and some port work. The result was a saw that came close to the ragged edge, in my book, perfect.

 

[HeRoze]

Stinky,

Now that you have all that pressure on the puller you just have to give it a reall good smack on the end of the center bolt. (Harder than you think you should)

Be mindful of where things are and do it over a board or something soft so when it all flys apart you won't break the flywheel ort ding the crank or something.

I got some good advice from a member here - thread the nut on the shaft a few turns to keep the flywheel from flying off when it breaks free.

 

[dieselsmoke]

wo000 hoo!
Randy, I knew you'd come thru with the knowlege. 4 1/2 degrees sounds like a bunch, but I'm game, I'm 'bout ready to give one of mine hot carbide! So, when you say they rejetted the carbs, do you think they actually installed a bigger main jet, or just richened up the settings?
BTW How are ya feeling, are the meds helping? Thanks for the info, I'm heading out to the shop right now.