McCulloch Chain Saws

[cpr]

Sorry for your loss. Prayers to you.

[email protected]

 

[8433jeff]

Does anyone have enough experience with the 600 series to have a preference with either carbs offered? Some saws had the Zama carb and others had the walbro carb. I believe the walbro is easier and cheaper to get kits for. But is there any other likes or dislikes?

Dislikes-the ones that don't work
Likes-the opposite ones
Any of the three majors. I myself love the Tillotsons. Familiarity is the only reason. Walboros are the most common, I suspect, and I always figure there's a reason for that. These are common enough so if there is trouble after a kit, and the other things (compression, spark, etc.) I would just swap them out for another.

 

[joeymt33]

Dislikes-the ones that don't work
Likes-the opposite ones
Any of the three majors. I myself love the Tillotsons. Familiarity is the only reason. Walboros are the most common, I suspect, and I always figure there's a reason for that. These are common enough so if there is trouble after a kit, and the other things (compression, spark, etc.) I would just swap them out for another.

Thanks for the thoughts. I've got a couple Zama carbs for the 600's but I've never used them. I was just curious.

 

[8433jeff]

Thanks for the thoughts. I've got a couple Zama carbs for the 600's but I've never used them. I was just curious.

Some of the Walboros for these have the semi circle gaskets on the lever side, and I would bet this is what gets screwed up on most in rebuilding these.

 

[rwoods]

Tom, sorry for your loss. You and your family will be in my thoughts and prayers. Ron

 

[watsonr]

Sorry to hear Tom... if its any comfort, there are a couple of cutting buddies I know already there, I'm sure he'll fit right in!

 

[a. palmer jr.]

Thanks for the thoughts. I've got a couple Zama carbs for the 600's but I've never used them. I was just curious.

I've had a few chainsaws, weedeaters, and a hedge trimmer that were kinda cranky and hard to start, they almost all had Zamas on them. It may have been a coincidence or maybe not. Right now I have a Husqvarna string trimmer that I've had a time with getting it running, you guessed it, Zama!

 

[promac850]

I've had a few chainsaws, weedeaters, and a hedge trimmer that were kinda cranky and hard to start, they almost all had Zamas on them. It may have been a coincidence or maybe not. Right now I have a Husqvarna string trimmer that I've had a time with getting it running, you guessed it, Zama!

Funny. I rarely have much trouble starting my 850 with the Zama C2, and the Ryobi SS30 with a Zama something else...

Actually, I rarely have trouble starting anything. Seems like almost everything that we have that runs, also starts up fairly easy. From old Kohlers equipped with their float bowl carbys to the Danger Ranger that I use to haul crap (no saws or firewood yet, but handy stuff anyhow) home...

Sometimes we're just unlucky with that one or two (God forbid three or more) items/ideas/techniques. You just seem to scare two smokes in general... from what it sounds like anyhow. Key phrase is 'almost all'... what was on the other engines? Walbro? Tilly?

Had a bunch of crap to say below... but deleted it...

 

[a. palmer jr.]

Funny. I rarely have much trouble starting my 850 with the Zama C2, and the Ryobi SS30 with a Zama something else...

Actually, I rarely have trouble starting anything. Seems like almost everything that we have that runs, also starts up fairly easy. From old Kohlers equipped with their float bowl carbys to the Danger Ranger that I use to haul crap (no saws or firewood yet, but handy stuff anyhow) home...

Sometimes we're just unlucky with that one or two (God forbid three or more) items/ideas/techniques. You just seem to scare two smokes in general... from what it sounds like anyhow. Key phrase is 'almost all'... what was on the other engines? Walbro? Tilly?

Had a bunch of crap to say below... but deleted it...

Well, I guess I forgot to mention that the Weed whacker is one I just got as a non running unit and haven't sorted it out yet. I took the carb apart and it looks like it needs a new kit in it but I'm saving that project till next Spring. The Walbro carbs are the ones I'm most familiar with and most comfortable about rebuilding although I rebuilt several Zamas with good success.
Myself and several others never did figure out the hedge trimmer, we rebuilt the carb and re-checked it several times, put new fuel lines on it, etc. but it still wouldn't run right. I think it's stuffed back in a corner somewhere now. One thing I did wrong was the adjustment on the weedeater, the manual says 1 turn out on the L screw and 2 1/2 turns on the H. I've never seen one like that before, they're usually a little over 1 turn out on both screws.

 

[Sagetown]

Looks like it made it safe

That chain only had a quick test cut on it. It is Blue Jet 1/2 .063. I used Oregon #10 preset and strap to link it up.
The Bluejet kits are the the rivets that need peened from both sides with a center punch and are a bugger for blind guy's like me.

Do those chokes have a detent on them or do you need to hold your finger down to close it?

hope to see a vid soon too..


ric

Repped

 

[promac850]

Well, I guess I forgot to mention that the Weed whacker is one I just got as a non running unit and haven't sorted it out yet. I took the carb apart and it looks like it needs a new kit in it but I'm saving that project till next Spring. The Walbro carbs are the ones I'm most familiar with and most comfortable about rebuilding although I rebuilt several Zamas with good success.
Myself and several others never did figure out the hedge trimmer, we rebuilt the carb and re-checked it several times, put new fuel lines on it, etc. but it still wouldn't run right. I think it's stuffed back in a corner somewhere now. One thing I did wrong was the adjustment on the weedeater, the manual says 1 turn out on the L screw and 2 1/2 turns on the H. I've never seen one like that before, they're usually a little over 1 turn out on both screws.

Might be a gasket or cranks seals on the hedge trimmer. Had a string trimmer engine that just wouldn't keep running (Weedeater XR-20) and the crank seals looked bad, lots of oil seeping out around them and they look mushy... kinda like one of those fuel lines you find tarred to the bottom of the tank...

Now that in bold, is unusual... never guessed someone would ever want to set things up that way. It just makes it that much harder to tune the engine without the manual...

 

[a. palmer jr.]

Might be a gasket or cranks seals on the hedge trimmer. Had a string trimmer engine that just wouldn't keep running (Weedeater XR-20) and the crank seals looked bad, lots of oil seeping out around them and they look mushy... kinda like one of those fuel lines you find tarred to the bottom of the tank...

Now that in bold, is unusual... never guessed someone would ever want to set things up that way. It just makes it that much harder to tune the engine without the manual...

What else that is unusual to me is that the mixture screws don't look anything alike from the outside of the carb, one is short and has a different slot than the other, the other one is longer and thinner. I thought the repair shop I got it from had mixed the screws up but the manual indicates they're right. I got rid of the plastic limiters, they were chewed up anyway.

 

[tbow388]

Mac 10-10 Auto

Been working on my first fix tonight.

Got my piston in and everything put back together.

Got it started once and then shut it off to do some carb adjustments. When I tried to pull it again it seemed like it had some sort of super compression or vapor lock or something. Pull the rope about half way and it shoots back in. Goes back in hard enough that it bruised my hand.

I did get it started one more time and it seemed to run okay. Shut it off and same thing again. Pull the plug and it pulls all the way through. Put the plug back in and super compression again.

Any Ideas?

If you want to read the whole story it is here http://www.arboristsite.com/chainsaw/188675.htm

:msp_confused::msp_confused:

 

[buzz sawyer]

Been working on my first fix tonight.

Got my piston in and everything put back together.

Got it started once and then shut it off to do some carb adjustments. When I tried to pull it again it seemed like it had some sort of super compression or vapor lock or something. Pull the rope about half way and it shoots back in. Goes back in hard enough that it bruised my hand.

I did get it started one more time and it seemed to run okay. Shut it off and same thing again. Pull the plug and it pulls all the way through. Put the plug back in and super compression again.

Any Ideas?

If you want to read the whole story it is here http://www.arboristsite.com/chainsaw/188675.htm

:msp_confused::msp_confused:

Maybe overadvanced timing? That probably has electronic ignition, right? So maybe it's fixed timing? My Homie Super 1050 did that until I corrected the points and timing. Your arm will feel even better tomorrow, trust me.

 

[a. palmer jr.]

Maybe overadvanced timing? That probably has electronic ignition, right? So maybe it's fixed timing? My Homie Super 1050 did that until I corrected the points and timing. Your arm will feel even better tomorrow, trust me.

Some of the 10 series saws have a compression release, I guess yours doesn't?

 

[mactodd]

Been working on my first fix tonight.

Got my piston in and everything put back together.

Got it started once and then shut it off to do some carb adjustments. When I tried to pull it again it seemed like it had some sort of super compression or vapor lock or something. Pull the rope about half way and it shoots back in. Goes back in hard enough that it bruised my hand.

I did get it started one more time and it seemed to run okay. Shut it off and same thing again. Pull the plug and it pulls all the way through. Put the plug back in and super compression again.

Any Ideas?

If you want to read the whole story it is here http://www.arboristsite.com/chainsaw/188675.htm

:msp_confused::msp_confused:

I sent you the heart of a lion. The saw it came out of I had nicknamed Wild Bill. Sometime I'll tell ya the story about that.
In the meantime, grab that handle like ya mean it!

 

[heimannm]

Thanks Todd, made me smile...

Mark

 

[whatscooking]

640

I ran a add in the local newspaper to sell some hay and at the bottom of the add for the heck of it i put in, wanted old Homelites. Well along came a McCulloch 640 that is missing the lower part of the rear handle and seems to be locked up but otherwise looks good, the bar even has paint on it. I have a complete 300 that i will get going but my question will the bar on the 640 fit my 300 or do any of you want to do some traiding if i can still get the saw? I only asked for old Homelites because i have a large pile of leftover Homelite parts and am afraid to start on another brand.:msp_confused:

 

[heimannm]

The bars will swap back and forth between the 300 and 640.

The brace (lower part of the rear handle) seems to be unique to the 640 though, not sure where you will find a replacement except from another 640.

Mark

 

[Saw Dr.]

Anyone know how to tell the difference in the 1-60 series? I have one on the way here, and it is missing the air filter lid.