McCulloch Chain Saws

[rwoods]

Canned fuel is your friend.
View attachment 604154

No doubt, but an expensive friend around here if you cut much with the thirsty 82cc ten series. About $20 per gallon versus $5 to $6 for 100% hi-test gas (at least that is what the rattle can painted sign says) and Stihl ultra. Not sure why Brian and his customers are getting such corrosive fuel. So far I have been spared. Ron

 

[Brian Thacker]

This is a carb I cleaned a week ago. Started it to move it outside and it would not idle. Look how the parts of the brass on the jets are black and the parts that are not submerged in fuel are much cleaner. I have no idea what it is or what to do to make it better.


When I cleaned it those jets were the same color all the way down. I have no idea.

Brian

 

[Brian Van]

Can you please explain how you are going to cut the bottom of the cylinder
when the cylinder and block are one piece.

Shave the block. Then line bore for the crank. But Brian is right, throws off port timing

 

[Jamerson88]

Does anyone have any info on this saw? McCulloch 6-10 Automatic , Mod:600055 Serial: 12-13805.

 

[Brian Van]

Does anyone have any info on this saw? McCulloch 6-10 Automatic , Mod:600055 Serial: 12-13805.
View attachment 604202 View attachment 604203

Did you look at the chainsaw collectors corner

 

[Brian Van]

Here it is.

 

[Brian Van]

Now Leeha has the right idea. Filler at top of cylinder. Maybe that guy( mark) that does the chrome in the cylinders can add a bit of chrome at the top.

 

[heimannm]

The 6-10 is not quite as peppy as a 7-10 (both are 71 cc) but still a very nice saw overall. The 6-10 will have the lever style DSP (De Stroking Port or compression release) operated by the stop switch, cube carburetor (normally the SDC), and no anti-vibe features.

I don't use mine much since I have other options, but my 7-10 is one of my favorite saws to take out for wood gathering.





Mark

 

[fossil]

This is a carb I cleaned a week ago. Started it to move it outside and it would not idle. Look how the parts of the brass on the jets are black and the parts that are not submerged in fuel are much cleaner. I have no idea what it is or what to do to make it better.

View attachment 604194
When I cleaned it those jets were the same color all the way down. I have no idea.

Brian

Any chance the stations around you are selling E15?

 

[Brian Thacker]

Any chance the stations around you are selling E15?

I don't think I am getting E15. I would like to send a sample to a lab somewhere and see what is in this stuff. This is the second time this summer that I have thrown out 2 5 gallon cans of gas. I got some at a Marathon station that I think was worse than this stuff. It ate the fuel lines off a 1200 goldwing.
I go threw a lot of fuel here. Just my consumption from chainsaws, weedeaters, blowers, generators, motorcycles, 4 wheelers, sideXside is quite a bit. Then you add the shop in the mix because seams like every bike, quad or what ever comes in is empty on fuel or the fuel is bad and I have to dump it, clean the tank and put fresh in it. This has gotten so bad that I am now charging 8.00 a gallon for fuel. If you want to bring me a bike to work on and it is empty on fuel then it takes my time to go get fuel and at 3.00 plus for a gallon then you are going to pay me for that. I am thinking on raising it to 10.00 a gallon. If I have to drive all the way to Pioneer Market (10 miles away) to get non ethanol fuel it is going to cost you.
I am wondering, all brands of fuel have there own additive package. You look at like exon, drive your car clean with tectron. I wonder if somehow when these additive packages are added that somehow they are not mixed well or they are coming out of solution while being stored or at the station and I am getting a slug of this instead of gasoline? I don't know about how gas is delivered around here but one of the ways I worked my way through college was delivering gas. This has been many years ago but when I delivered gas I loaded in Ashland Ky. I loaded from a Ashland Oil refinery. It was Ashland Oil fuel. I off loaded at Gulf stations, Exon stations, Shell, what ever. If you purchased fuel in East Ky. Most likely you got Ashland fuel. I wonder if it is still like this?
I have 2 customers that deliver fuel. One is out of Johnson City. I asked him what is the deal with non ethanol fuel and he told me that he delivered to non ethanol stations and used the same fuel that he had just pumped at a regular station. The other customer delivers out of Morristown. He tells me that he has a separate compartment for non ethanol fuel. I am unsure if one is lying or if that is how they are doing it. I just don't know but it is wreaking havoc on carbs and fuel lines. I know a few stations that carry E15 fuels in the area and if they know they are going to deliver to that station and just fill there truck with E15 and deliver that day with E15? Because E15 is not that popular, is it getting old and the distributor just pushes it out to E10 stations just to get rid of it. I don't know even if it is the ethanol in the fuel that is causing this. Could it be one of the additives in the fuel? Could it be the fuel itself? I just don't know.
I got 5 gallons from Pioneer Marker (Non Ethanol) yesterday, Ron has had good luck with there fuel and I am going to try and see if this makes a difference.

Brian

 

[Brian Thacker]

I have a 6-10 awaiting for me to get time to get running and restore it. For a 70cc saw it is light. This one is not very good condition but is very restorable. I have never ran one but I think I might like it. It has a hard nose bar on it right now but I will replace it with a roller tip. The muffler is missing and I got one off Ebay. I just need to get seals and gaskets. I just have too many projects right now to fool with it but want to get it running and see how it cuts.

Brian

 

[Brian Van]

E15 ? I thought it was E85?

 

[Brian Van]

I tried out my John Deere 80ev the other day. I think my Pro Mac 700 still had the best power in the deepest point of the cut. Granted the log was only 12 inches. I need a log that buries the bar for a better comparison.

 

[RandyMac]

CA gas ate the Autolite on my '65 Ford, the replacement carb lasted two years.

 

[fossil]

Some places have started to sell 15%. Small engine makers warned that this would void warranties. Apparently, the more alcohol the more Anaerobic bacteria action. The bi-product of that action is acetic acid which is corrosive. The ethanol has the pro guys and the con guys and the info out there is hard to disseminate by the non-chemical guys but you can be sure there's some truth and a lot of bullshite being distributed as gospel.
I don't think anyone with a brain that doesn't own a large corn farm thinks ethanol in gas is a good idea.

Just for the heck of it, I put a brass bolt in some vinegar to see what happens to it over time to see if that's what Brian may be seeing.

 

[rwoods]

Don't know the deal. My wife's 2012 5.3 Chevy has always been run on cheap up to 10% E grocery store regular gas - about 80K with no problems. My 2013 6.something has almost exclusively run on hi-test from a little market that advertises it as 100% gas. Probably burned over 4000 gallons so far plus what I used in all of my gasoline equipment. Unless things have changed in the last 20 years, possibly except for the fuel that comes here from Ashland Ky, our fuel comes from a common pipeline from the refineries to a terminal in Knoxville, different brands and grades are supposedly kept separated by turbulence. Different grades are sorted by a "clean" cut of the higher grade. The fuel on the front and tail ends of a pipe shipment are sold to the independents. Some proprietary additives may be made at the terminal. Or so I was told. Other than the brand and independent part, it pretty much squares with one pipeline version - http://www.colpipe.com/home/about-colonial/frequently-asked-questions.

Anyway we need to get back to MACs. Brian delivered to me my fresh from US Chrome project saw cylinder and dang if it doesn't have a squared off Qport like those shown a few pages back. Hope to get this thing to together before winter. Also hope to post the process once done.

Ron

 

[Efisher26]

Hey all, been awhile for me on here hope all is well with every one. Does anyone have a value on a mac 200? Running...


Sent from my iPhone using Tapatalk

 

[Brian Thacker]

Some places have started to sell 15%. Small engine makers warned that this would void warranties. Apparently, the more alcohol the more Anaerobic bacteria action. The bi-product of that action is acetic acid which is corrosive. The ethanol has the pro guys and the con guys and the info out there is hard to disseminate by the non-chemical guys but you can be sure there's some truth and a lot of bullshite being distributed as gospel.
I don't think anyone with a brain that doesn't own a large corn farm thinks ethanol in gas is a good idea.

Just for the heck of it, I put a brass bolt in some vinegar to see what happens to it over time to see if that's what Brian may be seeing.

I wonder if the age of the fuel would cause it to have more Anaerobic bacteria action and therefore have more acetic acid? Wonder if some bulk plants are stock piling gasoline or something like that and that would cause it to be more corrosive because there is times that I have gotten fuel that was alright and did not have problems and times I got fuel that caused these kinds of problems. Wonder if this is what I am seeing?
Ron, I do know that Ashland does have a pipeline going to Lexington Ky. and on to other destinations from there. I used to date a girl that her father worked for the plant in Lexington Ky. Maybe it somehow connects with the pipeline in Knoxville. Maybe they all connect together like power lines do. But I do know the truck I drove had 4 compartments. High test, Medium grade, regular and diesel. In that day you did not deliver much diesel and if I did not have any diesel stations to deliver to on that route I would fill it with regular because I would always run out of regular. Just one route I delivered, I had a Ashland station, then about 4 miles up the road I delivered to a Gulf station, and from there I stopped in Garner at another Ashland station and from there to Mousie to Worley Wickers Gulf station to finish off my route. Now this was back in the mid to late 70's and in rural Kentucky. Many things did not exactly fit the laws in that day. I know at one point Childress Oil in Whitesburg Ky. opened and they were exclusive Gulf oil. This was after I quit delivering fuel. I have no idea where or how they got there fuel.

Brian

 

[fossil]

The age of the fuel has everything to do with the production of acetic acid according to what I read but I'm not sure that's the issue. People do use vinegar to antique brass though to give it that brown appearance and add salt if they want the green.

 

[BigBlue]

I wonder if the age of the fuel would cause it to have more Anaerobic bacteria action and therefore have more acetic acid? Wonder if some bulk plants are stock piling gasoline or something like that and that would cause it to be more corrosive because there is times that I have gotten fuel that was alright and did not have problems and times I got fuel that caused these kinds of problems. Wonder if this is what I am seeing?

Perhaps the hurricane refinery/production shortages have caused suppliers to pull stored fuel into the supply chain to make up volumes?