McCulloch Chain Saws

[emf123]

A freebee today.
I'm scared to take the FW cover off.
View attachment 968125

OMG, I bet it was running a little rich!!!! Sometimes those can be the best ones though. The layers of crud act as protection for the paint

 

[clint53]

Runs like a snail. Air leaks, low compression, etc.
I'll set it aside until I finish other saws I'm working on.

 

[Xpropane]

Kind of quiet on here today.....
Is everyone to busy with there saws?

Eric R.

 

[clint53]

Kind of quiet on here today.....
Is everyone to busy with there saws?

Eric R.

So busy I'll never finish.

 

[clint53]

Are there any after-market piston rings for the 10-10S 92517 such as Caber? Or are we stuck with NOS?

 

[heimannm]

Clint - I have a good supply of NOS 92517 rings if you're interested.

I found these today while sorting, the step tap says Time Sert. It looks to me like you run that step tap through the spark plug hole to create a larger tapped hole for the insert, the guide would temporarily install in the enlarged threaded hole and the seat cutter could then recut the seat for the plug, and finally the driver would install the new insert in the prepared hole (or so I guess). The part numbers are McCulloch assigned numbers.



I have some spares if anyone would like a set of their own...once I find the additional seat cutters.

Mark

 

[Brian Thacker]

Clint - I have a good supply of NOS 92517 rings if you're interested.

I found these today while sorting, the step tap says Time Sert. It looks to me like you run that step tap through the spark plug hole to create a larger tapped hole for the insert, the guide would temporarily install in the enlarged threaded hole and the seat cutter could then recut the seat for the plug, and finally the driver would install the new insert in the prepared hole (or so I guess). The part numbers are McCulloch assigned numbers.

View attachment 968399

I have some spares if anyone would like a set of their own...once I find the additional seat cutters.

Mark

I use these Time Serts all the time. I think they are the best thread repair tool out there.

Brian

 

[heimannm]

Does that driver look like a Time Sert driver? I am trying to figure out how it is supposed to work.

Mark

 

[Brian Thacker]

Yes. This tool is kind of oblong and funnel shaped. You put a little lube on it and start the insert onto the end of that tool. It will screw into the hole until the collar of the insert seats into the grove cut by the seat cutter. Then you contuse to screw the tool all the way in until the threads of the tool are level with the top of the insert. This stretches' the insert and lockes it in place. Me I also use red lock tite just to make sure things don't come out. For spark plugs I use copper coated inserts for good electrical connection.
The tool on the far left I have never seen and unsure what it is used for.

Brian

 

[knightmax]

Kind of quiet on here today.....
Is everyone to busy with there saws?

Eric R.

Yes I was working on a 10-10 and a 700 done and ready ride.

 

[Brian Thacker]

I have several sets of these including one for McCulloch case screws, 12mm, 14mm, B,C & D sparkplugs. and a few others. I used them in my old Husaberg 650 that I raced. With a 16:1 compression I had to have very straight head and cylinder and it had to torque 86 Ft. Lb. The engine cases were magnesium so I had to use thread inserts in the cases or it would jerk the threads right out of the cases. If it backfired it would jerk them out any way. But we tried every thread repair and the Time Sert was the only thing that would hold. Also I am told that Time Serts make the only thread repair that will hold in high compression diesels.

Brian

 

[heimannm]

The tool on the left is the guide for the seat cutter.

Mark

 

[Brian Thacker]

All of mine you use the step tap to cut the seat. There is one tool I don't see. The seat cutter has 2 slots in the top where a tool with two downward facing pins to match those slots and it comes up above the tap and has a "T" handle on it to turn the seat cutter.

Brian

 

[Brian Thacker]

The handle tool has the slots that lock into the seat tool and also has a squire drive inside that locks into the tap and the driver tool.
If you can see the picture of the insert is conoco shaped like the plug the McCulloch uses. I also have the flat insert for a plug with a sealing ring.
Also they make a blind hole that can also be used as a through hole insert. Units on the end.

Brian

 

[Woodslasher]

I have been placed in charge of a SP125 for an undetermined amount of time with the only instructions being to "Run it long and hard to make sure there's nothing wrong with it." I installed the 28" roller nose bar off my brother's 1020 and so far I'm very impressed with it and honestly I don't want to give it up. However, I know I'll always be able to borrow it once it leaves. So far I've dropped the Ponderosa with it and bucked it up, tomorrow I'm going to halve and quarter it with the 125. The 81 came along as a limbing saw but it suddenly started running leaner so it's headed to the bench.

 

[clint53]

Clint - I have a good supply of NOS 92517 rings if you're interested.

I found these today while sorting, the step tap says Time Sert. It looks to me like you run that step tap through the spark plug hole to create a larger tapped hole for the insert, the guide would temporarily install in the enlarged threaded hole and the seat cutter could then recut the seat for the plug, and finally the driver would install the new insert in the prepared hole (or so I guess). The part numbers are McCulloch assigned numbers.

View attachment 968399

I have some spares if anyone would like a set of their own...once I find the additional seat cutters.

Mark

Thanks Mark
I'll PM you later.
I'm working on a list.
Clint

 

[clint53]

I have been placed in charge of a SP125 for an undetermined amount of time with the only instructions being to "Run it long and hard to make sure there's nothing wrong with it." I installed the 28" roller nose bar off my brother's 1020 and so far I'm very impressed with it and honestly I don't want to give it up. However, I know I'll always be able to borrow it once it leaves. So far I've dropped the Ponderosa with it and bucked it up, tomorrow I'm going to halve and quarter it with the 125. The 81 came along as a limbing saw but it suddenly started running leaner so it's headed to the bench.
View attachment 968420View attachment 968421View attachment 968422

You lucky dog.

 

[Woodslasher]

You lucky dog.

Yep! I think outside of a gtg this will be the only time I'll be able to run one of these beasts, but the more I run it the more I consider picking one up for myself someday.

 

[clint53]

Yep! I think outside of a gtg this will be the only time I'll be able to run one of these beasts, but the more I run it the more I consider picking one up for myself someday.

I'm always watching for one here. Never had my hand on one.
I had an uncle that was a logger that had one, plus 800 series also.
He had a bad stroke and sold all of them.
That was before I was into old saws.
I can only whine about it now.

 

[PogoInTheWoods]

I have several sets of these...

That's an impressive selection. I never have understand exactly how the Time-Sert system worked. Pretty cool. Looks expensive to get yourself set up for multiple sizes, though.

An economical and very effective solution for stripped plug threads is the HeliCoil Save-a-Thread kit. Strictly for spark plug threads. 'Bout $30. It's a time-sert type of insert vs. the traditional helical style. Uses a tapered tap to easily re-thread the cylinder. Doesn't mess with the plug seat. Screw the insert in flush or slightly below the seat. (I also use a little red LocTite) The insert has a knurled collar at the top that gets flared out and into the aluminum by an included punch to keep it from backing out. The key is to not hold back when seating the collar with the punch. Gotta put your ass into a couple good whacks with a decent hammer to seat it adequately. The only one I've done that hasn't held is the first one -- for that reason.

That said, I'd jump on one of those Time-Sert plug thread kits in a heartbeat if I didn't already have so many other tools on my wish list!