McCulloch Chain Saws

[edju1958]

Thats hilarious that someone values an 029 over a PM700!

My youngest brother has an 029 that needs crank seals.He thinks he can get $200 for it on feebay (good luck!).

 

[bob kern]

My youngest brother has an 029 that needs crank seals.He thinks he can get $200 for it on feebay (good luck!).

Running great yes. Needs seals.....nope!

 

[Yukon Stihl]

I didn't thnk the damage inside the crankcase was too bad so I cleaned everything up began reassembly. I like to pressure test before moving on and after several failed attempts (I had the block off for the intake upside down...) I realized there was a leak somewhere...

I had to resort to dunking it in water and found the problems, at some point when the crankshaft pinched the BB against the side of the case it distorted it and cracked through. The ones in the green circle were O.K. but the one in red...

View attachment 1058554

...led to this.

View attachment 1058555

I cleaned it very thoroughly and applied some JB Weld to the interior surface. I learned from Terry Ives that warming everything up first helps the JB flow out. I'll do a little grinding, filing, sanding to clean it up before putting it back together.

View attachment 1058556

Mark

Right there shows the value of a vac and pressure test.

 

[knightmax]

I didn't thnk the damage inside the crankcase was too bad so I cleaned everything up began reassembly. I like to pressure test before moving on and after several failed attempts (I had the block off for the intake upside down...) I realized there was a leak somewhere...

I had to resort to dunking it in water and found the problems, at some point when the crankshaft pinched the BB against the side of the case it distorted it and cracked through. The ones in the green circle were O.K. but the one in red...

View attachment 1058554

...led to this.

View attachment 1058555

I cleaned it very thoroughly and applied some JB Weld to the interior surface. I learned from Terry Ives that warming everything up first helps the JB flow out. I'll do a little grinding, filing, sanding to clean it up before putting it back together.

View attachment 1058556

Mark

hope she holds Mark!

 

[heimannm]

I have a Solo 611 Twin with a crankcase that is about 25% JB Weld, it runs very well.



Mark

 

[edju1958]

Running great yes. Needs seals.....nope!

Come to find out his saw was an 026 & he got $150 for it.He said he didn't say it needed crank seals,he just described the symptoms it had.

 

[bob kern]

Mark, I assume you have one of these but just incase......

 

[heimannm]

Thanks for the heads up Bob. I do have a few different editions of the McCulloch branded File -N-Joint on hand.







This one goes way back.



Mark

 

[bob kern]

Thanks for the heads up Bob. I do have a few different editions of the McCulloch branded File -N-Joint on hand.

View attachment 1059298

View attachment 1059299

View attachment 1059301

This one goes way back.

View attachment 1059303

Mark

Very cool. I figured you had it covered but you never know when there is that one a fella if still looking for!
Trying to keep that awesome museum in tip top shape for when I get out that way!

 

[yodayoda]

I’ve got a PM 700 I got from my Dad a few years ago I’m trying to get going, currently have a coil coming from knightmax.
Another thing I’m trying to figure out is the decompression, the passage in the head seems to be plugged. I’ve got the little Allen screw out on the head and can’t get any air or carb cleaner through it. Any suggestions?
Thanks Roy

 

[vinnywv]

Best option might be to drill it out. Little at a time and upside down so the carbon doesnt fall into the engine. Carbon is very hard and has ruined many of the chrome on these saws. Make provisions somehow of not getting carbon into the engine.

 

[knightmax]

Found some more yellow gold this afternoon. It's like Christmas here everyday currently!

 

[yodayoda]

Best option might be to drill it out. Little at a time and upside down so the carbon doesnt fall into the engine. Carbon is very hard and has ruined many of the chrome on these saws. Make provisions somehow of not getting carbon into the engine.

Thanks, I took a small drill bit and clamped it a vise grip and slowly worked it and alternately blew out the pieces of carbon with compressed air after every couple turns,I would never have thought carbon would be that hard

 

[knightmax]

Thanks, I took a small drill bit and clamped it a vise grip and slowly worked it and alternately blew out the pieces of carbon with compressed air after every couple turns,I would never have thought carbon would be that hard

FYI... You should do that every year on a Mac with a decomp clean out that you run alot. It will save the cylinder chrome.

 

[Maintenance supervisor]

Found some more yellow gold this afternoon. It's like Christmas here everyday currently!View attachment 1059490View attachment 1059492View attachment 1059493View attachment 1059494View attachment 1059497

Hows your piston stash?

 

[knightmax]

Hows your piston stash?

Well I cant say for sure.... According to Bob and his inventory.. 82cc 10 series. no A's, 30ish B's and C's

 

[Maintenance supervisor]

Well I cant say for sure.... According to Bob and his inventory.. 82cc 10 series. no A's, 30ish B's and C's

Yeah the A is a rare bird to find now.

 

[heimannm]

...I know a guy...

 

[Jethro 2t sniffer]

...I know a guy...

How much? My 800 is an A. Thing is it doesn't need a piston will it ever? It gets used occasionally here n there

Edit..
The 81 IS due a piston for sure. Pretty sure it was a B

 

[Jethro 2t sniffer]

Been tempted to just flog the 850 engine for the 81. Why carry the heavier 850 when I have a 81??