McCulloch Chain Saws

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So guys I've got a B cylinder but I bought a C NOS piston cause it was half the price of a B loll..and it slides in the cylinder quite nice what am I risking by doing this..?? before I go and do it. I guess I could always sell it if its not advised. Will it be ok?

You are risking a seizure. The "C" piston is slightly larger than a "B". Ron
 
Well, not exactly two tanks - run until it quits while nose down -twice:

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Some cutting from today. Had to put it up a few cuts later - couldn't get the adjuster pin to fit in the bar with new chain. For some reason my second new Stihl .404 chain is a tad shorter than the first one; a very important tad. I checked all of the links to make sure a 3/8ths didn't slide in somewhere, but I didn't see one. Just appears to be a very tight chain.

Ron
 
...Made in an Italian McCulloch factory...

They are nice little saws but the electronic ignition coils were unreliable. The Titan 50 and the Double Eagle 50 are the same saws, the Titan 57 has a slightly larger bore but everything else is the same.

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They can be challenging to work on with the routing of all the oil, fuel, impulse, and vent lines.

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Mark
 
I was looking through some PM800 parts saws I picked up a few years ago, I was surprised to see that two of the three had the inserts broken loose from the flywheel, and the third had the flywheel key sheared off. I have never seen anything like this before, seems like maybe McCulloch changed the type of insert on the taller 18 finned flywheels on the PM800 saws.

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Mark
 
I bought a batch of crankshafts that are supposed to be for the PM800, I will compare them with one of the PM800 apart in the shop now and confirm that they are a match. One or two will be unusable due to rust but there should be two or three that can be rescued.

The PM8200 is also in the early stages of coming apart...

Mark
 
That insert concept seems weird on several levels anyway. Just another point of failure for both the flywheel and the timing adjustment. Was it just an interference fit? Flywheel cast around it? Secured by/during plating? Did any other manufacturers use such a design? Actually looks downright dangerous.
 
That insert concept seems weird on several levels anyway. Just another point of failure for both the flywheel and the timing adjustment. Was it just an interference fit? Flywheel cast around it? Secured by/during plating? Did any other manufacturers use such a design? Actually looks downright dangerous.

I have several different McCulloch flywheels - older 850, 125, 101B + the newer 82cc. All have an insert.

Ron
 
Need help identifiey this Saw. l thought it was one of the 55 models or 1-80 but not sure. note the graphics on str housing and air cleaner cover. l fiqure mid 1950'S
 

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It is a model 55. Made in 57'. I have one. The first 2 numbers in your serial number picture from the bottom of the saw confirm it. Heavy saws. Mine came with a 26" bar and 1/2" pitch chain. Converted to .404 and a mac 10, 28" bar. Cool saws and fun to run!
 
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