McCulloch Chain Saws

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I've actually had good success with JB Weld patching the crankcase for my Solo 611 Twin. Granted it is not in constant exposure to liquid fuel but it is still working since July of 2015. The key it in my opinion was very thorough cleaning of the part first by sandblasting and washing with brake clean and carburetor cleaner, and allowing the JB to cure properly before putting it into service.

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Mark
 
JB weld does make a product that is indeed fuel resistant.Its much different than the standard version,I had no luck myself with regular JB on a crankcase half side near the left side fuel tank for a Husqvarna 2100 that had some chain rash by previous owners....

A well known & highly respected mechanic,saw restorer,hot saw builder/racer by the name of Mike Nolen from northern california has demonstrated its use a few times in the Modified Saws & McCulloch Chain Saws North America forums on Facebook.Like Rich Dougan/Saw King/West Coast Muscle Saws,I take pretty much everything he says to the bank....both guys are the real deal,not just some clueless wannabe phony mechanic on You Tube who just wants their view numbers to increase,along with their fame. 🙄
Hmmm will have to investigate.
 
I have tried regular jb weld several times when converting 26-32cc zenoah rc cylinder to case reed induction, Filling in the intake port. Never held up past a few gallons of fuel. Started using belzona at the suggestion of one of our machinists. 1511, it's great stuff. Just expensive. I still get it from the machine shop I used to work for on the odd occasion I need it.
https://www.belzona.com/en/products/1000/1511.aspx
i have had good success using jb weld water weld for small engine case repairs. It's a putty, so not ideal for flowing into deep voids, like what I was doing with the intake ports on the zenoah cylinders.
 
Hello! I was told to post this here as well:

Hello! I am new to chainsaws and have two issues with my new to me McCulloch Eager Beaver 2014.

The first issue it that it will not idle. Once started, it will seemingly rev more aggressively on its own until it shuts off. This last for about 5 seconds. It also seems to let off much more exhaust than it should? Very potent smell. I am comparing this to another Stihl saw.

I wanted to learn how to tinker with saws a bit and bought this one. Allegedly, the seller had recently replaced fuel lines and primer bulb (I have no reason not to believe him).

My second issue is the leaking of oil. It is leaking near where the bar is attached. (Pictures attached below). Assuming it it the bar oil? It drips when running, and consistently oozes when just sitting, not running.

I appreciate everyone's help and patience with a buffoon like me. I am not afraid to take things apart if needed. Please let me know if there is any additional info or photos I can provide. Thanks again.

Update: After further investigation, the real leak seems to be coming from the muffler. It drips heavily when trying to start (or running), and is a slow ooze when at rest (off). I will try to attach photos again.
 

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I'd start by completely disassembling the saw for a more thorough investigation.

Engine racing sounds like and air leak; very likely the crankshaft seal on the PTO side.

Leaking oil is probably a broke oil line from the tank to the pump, you are just seeing the final results. The original lines on those models were notorious for failing and if they replaced the fuel lines and not the oil line it will be bad.

I'd recommend asking your questions in the McCulloch Stickie, you will get more attention there.

https://www.arboristsite.com/threads/mcculloch-chain-saws.71126/page-2472

Mark
 
Thanks for the heads up Bob, Max has already taken care of it for me and the stuff should be on the way soon.

Mark
Hi Mark, I assume you must have a whole lot of that stuff already. I would like to acquire maintenance/repair info specific to the 795/795. I'm a novice at this, so don't know what all is available. Would prefer digitally, otherwise maybe a photo-copy by mail ??
 
Hi Mark, I assume you must have a whole lot of that stuff already. I would like to acquire maintenance/repair info specific to the 795/795. I'm a novice at this, so don't know what all is available. Would prefer digitally, otherwise maybe a photo-copy by mail ??
795/797
 
I am not aware of any workshop manuals that apply the the "super series" models which include the 700/800 model saws.

There is a 1-40, 1-50, 1-60 workshop manual that applies to the front tank models but there are quite a few differences to the super series/top tank models so it is not all that helpful.

There is also a "General Service Information" document for the SP125 but it primarily covers improvements/upgrades from early models and again does not provide much information that would be useful for the 795/797 models.

Mark
 
Max - come get your steak dinner whenever you want, since we'll be dining in Iowa I might recommend and Iowa Chop instead.

I started on this one today:

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Pretty rough under the covers.

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I'm working on getting it cleaned up now.

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My intent is to make the necessary repairs/replacements and make this saw workable again rather than making it pretty. I'll use it for the Baraboo event in August then consider what to do next.

Mark
 
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