McCulloch Chain Saws

[Jethro 2t sniffer]

1st "customer" McCulloch repairs completed today my good mate has a 700 that got the rear handle broken I had a spare 10-10 tank bottom
A couple hours cleaning and other tidy ups on it and hey presto

 

[Jethro 2t sniffer]

The other thing I found inside was a pm850 24 fin flywheel so I stole that and put the pm10-10 flywheel on it reason why was to steel the starter pawls for my 800 that I traded away for a 7-10.

My mate as we speak is going to look at an sp saw for 50 bucks
Not sure if 80 81 70 or what yet
Facebook dam it I hate it but I miss out not being on it

 

[fossil]

If it's true to it's colour It should be an 80 or 81.

 

[Jethro 2t sniffer]

If it's true to it's colour It should be an 80 or 81.

Awesome I thought so hes picking it up in a few days. Highly jealous but happy too

 

[Maintenance supervisor]

Awesome I thought so hes picking it up in a few days. Highly jealous but happy too

If he is a good mate/friend he'll let you have go with it.

 

[Jethro 2t sniffer]

If he is a good mate/friend he'll let you have go with it.

Haha hes let me have the last two 7-10s so it's kinda his turn I spose. I told him I'll hand over good money for it he's thinking about it

 

[Maintenance supervisor]

No has a 7/16 nut holding it on.

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The nut doesn't "hold it on" the taper of the crank does the nut just sets it and if it does get loose keeps it from becoming a grenade. Keyed or not you have to install the nut tight enough to use force of some kind to get that clutch off even with the nut completely removed. I don't know what the torque spec is but its not hand tight.

 

[fossil]

The nut doesn't "hold it on" the taper of the crank does the nut just sets it and if it does get loose keeps it from becoming a grenade. Keyed or not you have to install the nut tight enough to use force of some kind to get that clutch off even with the nut completely removed. I don't know what the torque spec is but its not hand tight.

From what I can see in the manuals, The 54 to 70 cc models 13 to 15 ft. lbs. 5/16-24 nut.

The 82 cc models 33 to 35 ft lbs. 3/8-24 nut.

 

[Maintenance supervisor]

From what I can see in the manuals, The 54 to 70 cc models 13 to 15 ft. lbs. 5/16-24 nut.

The 82 cc models 33 to 35 ft lbs. 3/8-24 nut.

Thank you.

 

[andrewsc]

Swapped out the clutch....she cuts eh![emoji16]

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[Jethro 2t sniffer]

Swapped out the clutch....she cuts eh![emoji16]

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Easy as that. I learned pretty fast to grab these saws dead or alive for times like this. It's very handy that a heap of parts fit from so many models and if you look on Ebay you'll pay what a saw could be had for just 1 part

 

[ThistleIA]

Easy as that. I learned pretty fast to grab these saws dead or alive for times like this. It's very handy that a heap of parts fit from so many models and if you look on Ebay you'll pay what a saw could be had for just 1 part

I must have 30 some parts donors from mainly 2 saw companies (guess which ones haha) & a crap load of NOS & good used ''loose'' parts in bench drawers,cardboard boxes,up on spare shelves,other places stashed away,I'm like a squirrel in that regard lol.....Even to this day its hard for me to resist a decent parts donor if the price is right,lots of parts that were common just 10-15 yrs back are getting scarce now. And we obviously cant go to the Dealer or local hardware store to get them,unless its the common nuts.bolts,washers that we see in the IPL's.

 

[Jethro 2t sniffer]

I must have 30 some parts donors from mainly 2 saw companies (guess which ones haha) & a crap load of NOS & good used ''loose'' parts in bench drawers,cardboard boxes,up on spare shelves,other places stashed away,I'm like a squirrel in that regard lol.....Even to this day its hard for me to resist a decent parts donor if the price is right,lots of parts that were common just 10-15 yrs back are getting scarce now. And we obviously cant go to the Dealer or local hardware store to get them,unless its the common nuts.bolts,washers that we see in the IPL's.

You're living the dream mate and that's exactly how to keep these things going.

 

[andrewsc]

Easy as that. I learned pretty fast to grab these saws dead or alive for times like this. It's very handy that a heap of parts fit from so many models and if you look on Ebay you'll pay what a saw could be had for just 1 part

Brother she cuts like a hot knife through butter. Ive another 10-10s that just needs a fuel line and carb kit.

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[Jethro 2t sniffer]

Brother she cuts like a hot knife through butter. Ive another 10-10s that just needs a fuel line and carb kit.

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Nice man awesome. You may find that the clutch may bite ok with a different drum or get in there with sand paper and rough it all up.

Get the word out your after these old things even 50 bucks on a dead 10-10 gives heaps of parts.

 

[PogoInTheWoods]

So what was the problem with the other clutch?

 

[heimannm]

I have been pretty busy working to get the museum going so I've been slacking here...

The flywheels on all of the 10 Series LH start saws will interchange with the possible exception of the 18 fin used on the PM800/805 since they are a bit "taller" to move more air. The flywheel covers on those saws are a bit wider as well and shaped differently so they don't easily interchange with the rest of the 10 Series saws.

Most of the LH start flywheels were 12 fin. After a few 82cc saws were cooked they came up with a 24 fin flywheel to move more air and some of the later PM models had these. I think all PM850 had the 24, as well as some PM700 and 10-10S saws.

L-R: 12 fin, 18 fin, 24 fin


Hard to see in this photo but the fins are taller on the 18.



The electronic and points coils do mount in different locations, but the flywheels are the same. RH start flywheels are smaller in diameter and do not interchange with the LH start saws...I know this because Fossil set me straight.

Mark

 

[heimannm]

640 with a big bow for Ron.



Mark

 

[Jethro 2t sniffer]

I have been pretty busy working to get the museum going so I've been slacking here...

The flywheels on all of the 10 Series LH start saws will interchange with the possible exception of the 18 fin used on the PM800/805 since they are a bit "taller" to move more air. The flywheel covers on those saws are a bit wider as well and shaped differently so they don't easily interchange with the rest of the 10 Series saws.

Most of the LH start flywheels were 12 fin. After a few 82cc saws were cooked they came up with a 24 fin flywheel to move more air and some of the later PM models had these. I think all PM850 had the 24, as well as some PM700 and 10-10S saws.

L-R: 12 fin, 18 fin, 24 fin
View attachment 771888

Hard to see in this photo but the fins are taller on the 18.

View attachment 771887

The electronic and points coils do mount in different locations, but the flywheels are the same. RH start flywheels are smaller in diameter and do not interchange with the LH start saws...I know this because Fossil set me straight.

Mark

Thank you Mark. So the flywheel I swapped on my mates 700 was probably the correct 1. Hopefully it doesn't overheat. I swapped it so I could borrow the flywheel pawls instead of making some

 

[rwoods]

IIRC, you (Mark) also have a high reving 640. Your bow guard is similar to my grandfather’s though his is lacking the side handle. My father’s wasn’t so fancy. It simply had a steel angle bolted to bow. Ron