McCulloch Chain Saws

[2Twannabe]

So if you boil the fuel in a front tank saw, do you have to choke it to get it started again?

On a different note, did some of the late model PM700 saws use a straight fuel line instead of the formed line with a molded in grommet? I ordered a new fuel line for mine and there's no way that formed line is going to fit in that little bitty hole unless I drill it out.

Jeff

 

[heimannm]

There was a 10 Series carburetor conversion kit that included a bushing to press in the hole through the tank, a smaller diameter fuel line fit through the bushing, the replacement carburetor had a much smaller nipple to match.

Once the fuel is boiled out the line is filled with vapor, it takes some effort to get it pumping again, easiest way is prime it likea dry start.

Mark

 

[kahekili]

Please excuse my intrusion to your thread. I'm a noob and I'm not sure this is where I should be posting, so please correct me if I'm in the wrong place.

I am rebuilding a Double Eagle 80. The cylinder is marked "B" as was the old piston. I am aware of the three sizes A, B, and C but I cannot find diameters to go with the letters. I cleaned up the transfer in the cylinder and decided to have a go at a new piston. I purchased an oem piston for my saw that the seller identified as a "B" 92519. But, funny thing is that the piston is marked "C". So my question is this: I can fit the piston with rings into my cylinder without any binding. Can I determine if I have enough clearance to actually run this piston, or do I need to get a "B" ? Again, I cannot find the differences in diameters so I can't tell how much variance there actually is between the pistons. Maybe there's enough wear in the bore to actually need the larger piston?

Thanks guys,
Kahekili

 

[joeymt33]

There are only one set of rings for all Pistons. In other other words, your rings will fit an A piston as well.

It sounds like the seller sent you the wrong piston. It should be marked with a B. I would not use the C piston in that cylinder as there may not be enough clearance for proper lubrication.

Congrats by the way on a good saw. Those are strong runners.

Other notes about that saw:

1-Please use a quality oil at 32:1

2- make sure there are no air leaks. Use sealant and thread locker to prevent things from loosening.

Sorry if you already knew these things. It never hurts to restate it.

Joey


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[joeymt33]

Kahekili, you'll soon learn I have a passion for the 82cc Mac's.

Here's a pic of me and Mark showing off some of ours.

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[rwoods]

Kahekili, 82cc MACs are junk. Just check my junk pile, a couple or three not shown. Ron

 

[kahekili]

This is my first yellow saw. I liked the metal body and thought this would be a worthy project. Most of my other saws are orange plastic.

I checked the clearance on the cylinder, and it looks like I have .003". Does anyone know the minimum? I guess I'll have to wait for another piston if not.

 

[kahekili]

That is an impressive collection of saws. I'm on my 9th saw. It's rather addicting collecting saws.

 

[joeymt33]

Is that .003 all the way around or total? Either way, I believe it's too tight.




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[joeymt33]

One could say that we like yellow....

You should see Marks collection. I'm sure he'll be along soon to help us determine the proper fitment of the cylinder.


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[kahekili]

Wow, my wife would kill me. As it is, she thinks I only have 3.

 

[blk05crew]

So is the Mac SUPER 10-10 Electronic a pretty rare saw for that series?

 

[joeymt33]

So is the Mac SUPER 10-10 Electronic a pretty rare saw for that series?

It is pretty rare.


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[blk05crew]

It is pretty rare.


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I found a nice runner locally for $75.

 

[heimannm]

Dimensions for "A", "B", and "C" pistons and cylinders can be found on the attached list.

Mark

 

[rwoods]

No expert by any means but the DE80 is too desirable of a saw to risk seizure. I would buy another "B" piston. Shop around on eBay as there is a vast price difference between sellers. Ron

 

[heimannm]

I have purchased several 92519 pistons w/rings from customchainsawparts on e-bay, $45 + shipping.

Mark

 

[kahekili]

Dimensions for "A", "B", and "C" pistons and cylinders can be found on the attached list.

Mark

Thank you Mark! That is what I was looking for.

 

[kahekili]

Now, does anyone have a source for gaskets for the DE80????

 

[heimannm]

Which one(s)?

Mark