McCulloch Chain Saws

[Warped5]

ProMac! Good to see the rumors of your demise are greatly exaggerated!

:msp_thumbup:

I have a god analogy for the Mini-Macs: 'Skeet'

 

[heimannm]

Tom, I assume you are talking about the 600 Series saws, fondly known by some as cinder blocks. Do a little seaching and you can find a number of threads discussing the pros and cons. Most folks consider the cons greatly outweight the pros but they do tend to be rather dependable even though they are loud, heavy, ugly, and slow.

I am still looking for a 655 and Silver Eagle 3.7, as well as the most elusive 645 that I have only seen referenced in an obscure IPL listing to complete the collection of 600 Series saws; already have the 605, 610, 650, Eager Beaver, Timber Bear, and PM5700 versions.

Mark

 

[joeymt33]

Mark, I've got a silver eagle 3400. You may need to add that to the list to complete the 600 series. That 645 sounds interesting, I've never seen one.

 

[joeymt33]

Actually it says 3420

 

[rwoods]

Some nice MAC action photos and videos.

http://www.arboristsite.com/chainsaw/175321-7.htm Ron

 

[heimannm]

I am pretty sure the SE34 models are the more modern, smallish saws. There was a version of the 600 Saws in silver that is/was called the Silver Eagle 5700.

If I am off base here let me know somebody.

Mark

 

[joeymt33]

Here is a pic of it, I've only seen this one

 

[heimannm]

Se 3420

You have my full attention Joey.

If you have any interest in a sale or trade, let me know.

Mark

 

[joeymt33]

Like you, I am also attempting to complete a 600 series collection. I had a 600 series saw that I have sold, the label said McCulloch Remanufactured 3.4

I have been thinking if that saw should have been worthy of some shelf space

 

[joeymt33]

The reman is Probably not collection worthy, that is why i sold it. Mark, if i run onto another 3420 it will be yours

 

[joeymt33]

By the way, my 3420 had a bad motor when I got it. So now It has a 610 motor in it.

 

[Steve NW WI]

Mark, I've seen a couple of those SE saws pop up on CL up here, I'll keep an eye out for ya. Didn't know you were working on a cinder block collection when I saw em.

 

[promac850]

ProMac! Good to see the rumors of your demise are greatly exaggerated!

I have a god analogy for the Mini-Macs: 'Skeet'

No demise here... just been really busy.

Going to head out to finish painting the saw shed that was formerly a shipping crate. It's one of the little wood ones, not a full fledged shipping container from a ship.

Hopefully after this all gets painted and set into place, with shelves put inside, I'll have plenty of room for more saws to come in...

Also, the tool and die shops around here are busier than heck, and thus the reason why I haven't brought the cylinder in for boring. I'd rather not get in their way or take too much of their time. I will visit a few anyhow, and if they can fit it in, great. If not, then I'll have to wait until stuff slows down a bit. Heck, some of them were open and some guys working Sundays!! That's busy, if I've ever seen it.

 

[Deprime]

A little off topic but I found a t-shirt this weekend that I had to pick up.

 

[turtle561]

here's some mac carb and piston info that may be of some use: Steve O'Hara Manual

 

[056kid]

I pulled my Super 797 apart this evening. I don't think it had ever been apart before. It has the original 2.280'' piston and the bore looks excellent. The ring gap was something like .070 or so which seems big but it has ring pins so. . Compression was really low and I am wondering if the dsp valve was contributing to the problem. I need two of the valves if anyone has some good ones. It is built somewhat differently than the 795 I just did. It does not have a third port and it does not use an O ring in between the crankcase cover either. There is a cut out area to allow the crank to be removed as well, there are other differences in porting as well.

 

[leeha]

I pulled my Super 797 apart this evening. I don't think it had ever been apart before. It has the original 2.280'' piston and the bore looks excellent. The ring gap was something like .070 or so which seems big but it has ring pins so. . Compression was really low and I am wondering if the dsp valve was contributing to the problem. I need two of the valves if anyone has some good ones. It is built somewhat differently than the 795 I just did. It does not have a third port and it does not use an O ring in between the crankcase cover either. There is a cut out area to allow the crank to be removed as well, there are other differences in porting as well.

The 797 is a whole different animal then the 795.
The cut out in the case is to allow room for crank
removal due to the 797's longer stroke. And with
the cut out you can't have an "O" ring so it was sealed
with a sealer. The 797 has different porting, Including
a boost port except for some Super 797's that didn't.
If your compression was low with a nice bore and unstuck
rings then the decomp valve could be at fault. Might be
stuck in the cylinder and not closing.
Your .070 ring end gap is not bad. Measure the pin thickness
then add .010 and that would be about where you want to be.




Lee

 

[ukeman]

My SP80

So here are some pics of my SP 80 I was cutting a honey locust log. It still has carb issues, but I am going to tear it down this winter and go all through it!!! It runs great at full throttle but the idle sucks.View attachment 198913View attachment 198916

 

[056kid]

What was the reason for getting rid of the boost port do you know?

 

[heimannm]

Ukeman - That saw looks like it has done some work in its day, great piece.

Mark