McCulloch Chain Saws

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did you guys know that the pro mac 650 were 75cc's?? according to this expert on youtube they are 75cc's. check it out:
YouTube - ‪mcculloch pro mac 650.‬‏

Dealing with idiots lost its humor a long time ago, for me at least. "My grandpa worked on the assembly line", well, maybe he did, and maybe that's why they were such a great saw. Or maybe not. Actually, not.
 
i am with out a doubt a chainsaw rookie, its hard to find some one that I can laugh at. it may be a little mean, i couldn't resist though
 
Home again but it will take a few days to get back into the swing.

Nice to come home to some beautiful weather. I think out of 13 days in Europe there were only 2 days in Portugal at the beginning of the trip when it didn't rain as least sometime each 24 hours. Even so, I did enjoy last weekend in Prague and the days in Lovosice last week.

Prior to Europe I was in Australia and visited Tasmania one day including the Australian Axemans Hall of Fame in Latrobe, Tasmania.

188786d1309229578-dscn4217-jpg


Mark
 
Geez Mark, is there anywhere you haven't been? :dizzy:

Really, you get to see some cool stuff at some cool places, but I imagine sometimes you still wish you could just stay home.
 
PM 610 difficulty/question ...

Good morning thread members ...

Got my PM 610 all back together on Saturday (yes I intend to post pix, probably today) and it ran very nicely. Better than I thought it would. Now it seems to have gotten a bit tempermental ....

When starting this saw, is the throttle trigger supposed to have an interlock function where the trigger is locked at halfway until it starts?

Thanks!
 
Good morning thread members ...

Got my PM 610 all back together on Saturday (yes I intend to post pix, probably today) and it ran very nicely. Better than I thought it would. Now it seems to have gotten a bit tempermental ....

When starting this saw, is the throttle trigger supposed to have an interlock function where the trigger is locked at halfway until it starts?

Thanks!

Ted, yes there is a throttle locking mechanism.

You depress the trigger then pull the lock back, while holding the lock let go of the trigger and it should catch.


Chris
 
Howdy fellas. Nice story Randy.

Still out here. Been working 50-60 hours a week. Any free time I get seems to be spent under a diesel haze. Miss the saws, but they'll be there in the fall.

I'll weigh in from time to time, but won't be around much. PM me, email me, or some of you have my number, feel free to ring me up.
 
Just got the tank gasket in for the 250 and I am not sure it is the right one but don't have access to the saw right now so can't check.

But, I am surprised it seems to be made out of a paper/fiber material which seems would wick the gas out of the tank instead of keep it in.

Or am I just not wise in the ways of old school technology? Is there something that needs to applied to both of the tank services to "glue" the gasket in place?
 
Ted, yes there is a throttle locking mechanism.

You depress the trigger then pull the lock back, while holding the lock let go of the trigger and it should catch.


Chris

As I thought. The set screw is actually a primitive sort of 'governor' that limits the trigger travel at the top end. The 'hook' on the interlock is supposed to catch the bit of material on the end. I was debating with myself the following local mods: 1) I drill a tiny hole and then use a needle file to create a groove for the hook to grab on to, or 2) creating a small 'lip' with a dab of JB Weld. We'll see ...
 
As I thought. The set screw is actually a primitive sort of 'governor' that limits the trigger travel at the top end. The 'hook' on the interlock is supposed to catch the bit of material on the end. I was debating with myself the following local mods: 1) I drill a tiny hole and then use a needle file to create a groove for the hook to grab on to, or 2) creating a small 'lip' with a dab of JB Weld. We'll see ...

If you tune the saw right, it should start up without the interlock... believe it or not, mine doesn't work.

I pull the choke out, and pull until she pops (about 5-6 pulls) and half choke, pull again, she fires up the first or second pull this time. Let warm up a few seconds, then push the choke in.

When hot, no choke... usually one pull, sometimes two, very rarely three.
 
If you tune the saw right, it should start up without the interlock... believe it or not, mine doesn't work.

I pull the choke out, and pull until she pops (about 5-6 pulls) and half choke, pull again, she fires up the first or second pull this time. Let warm up a few seconds, then push the choke in.

When hot, no choke... usually one pull, sometimes two, very rarely three.

That is how it was prior-rebuild. Almost exactly. Now it does not even want to pop, ran great Saturday. I posted pix in the thead started for it. :((
 
Start from the beginning again. Spark, fuel? If you rebuilt the carb, everything in its place? Not picking or beating on you, its happened to us all, especially with this series of saws for some reason. OK, there are reasons, but I'm not doing it tonight, not right now anyway.
 
That is how it was prior-rebuild. Almost exactly. Now it does not even want to pop, ran great Saturday. I posted pix in the thead started for it. :((

Carby kit, fuel line, fuel filter. That would likely take care of it. I know how it feels to have something run great one day and not run worth a #### the next... been there too many times. Unfortunately, I will likely be there many more times...

Tore the 317 down today, found that the rods are fine (turned flywheel by hand, pistons and valves moved and no noises were heard) and I am pretty sure the governor took a #### on me. We got it out, did an oil change... before the oil change, she ran fine. After, bad and scary knocking sounds... shut her off... and rolled her into the barn.

All I know is if the governor is broken, the whole damn engine has to come out and be taken apart on the bench... :bang: The governors on most, if not all of these small engines are buried inside the engine, with no way to get to it without splitting the case...

Oh well, #### happens...
 
Start from the beginning again. Spark, fuel? If you rebuilt the carb, everything in its place? Not picking or beating on you, its happened to us all, especially with this series of saws for some reason. OK, there are reasons, but I'm not doing it tonight, not right now anyway.

Yah, but it ran Saturday afternoon. Will check spark tomorrow .... fuel was getting to the carb. The way my life is going lately, I probablt reversed the kill switch when I reinstralled it, so now 'off' is really 'on' .... :bang:
 
Yah, but it ran Saturday afternoon. Will check spark tomorrow .... fuel was getting to the carb. The way my life is going lately, I probablt reversed the kill switch when I reinstralled it, so now 'off' is really 'on' .... :bang:

I've come to the conclusion that you can work on chainsaws too often. Good idea once in a while to take some time away from this and do something else you like. I think it puts me in a better frame of mind when I do get back to working on these "basket cases".
 
I've come to the conclusion that you can work on chainsaws too often. Good idea once in a while to take some time away from this and do something else you like. I think it puts me in a better frame of mind when I do get back to working on these "basket cases".

Man that's the truth. I got so burned out on working on other people's crap OPE that I walked away from it for over 10 years. A 'cool down' is needed sometimes. Going back for a 'fresh' shot at a problem helps me quite a bit.
 
Man that's the truth. I got so burned out on working on other people's crap OPE that I walked away from it for over 10 years. A 'cool down' is needed sometimes. Going back for a 'fresh' shot at a problem helps me quite a bit.

I can imagine so, Aaron. All the time, same crap over and over...

A while to cool down usually does help matters. Sometimes I'll be messing with a certain problem for hours set it down and get it on the first try the next time around.

When I first started working on these things, though, even a fuel line could be challenging sometimes.


If you ever really get frustrated with the saws I believe they got a place at your job for you to really "cool down" in

:laugh:

Chris
 

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