MCCULLOCH The official McCulloch thread

[hacskaroly]

r those of you with the big iron... Just added larger stencils for 36" and larger McCulloch bars to my store. https://www.oldsawshop.com/McCullloch-Large-Bar-Stencils-p819372089

Those look really good!!

 

[Squareground3691]

Stenciled bar

 

[hacskaroly]

Stenciled bar

That looks sharp!!

 

[cinci5]

For those of you with the big iron... Just added larger stencils for 36" and larger McCulloch bars to my store. https://www.oldsawshop.com/McCullloch-Large-Bar-Stencils-p819372089

Pretty good Brian are they peel and stick ?

 

[heimannm]

Jeff (cini5) located this unusual piece of McCulloch for me.











I cleaned it up a bit before putting it up in the display area.



I'm guessing the "indoor" was maybe in the garage...I don't think I want to hang out in anyone's living room that requires a mulcher...

Mark

 

[Rallyeguy]

Pretty good Brian are they peel and stick ?

They are applied with a clear transfer tape, the tape is peeled off and the stencil is left for painting. Once painted the stencil is peeled off and the painted graphic remains.

 

[Rallyeguy]

Just finished working on a 3-25 diaphragm, much thanks to Robert Muncy Sr.

I've created a rivet less diaphragm replacement and will be letting Robert test it before I put it up in my store...

Thanks again Robert, Appreciate you providing the hardware and bearing with me for the extended time it took to get the stainless steel centers laser cut.

Brian

 

[hacskaroly]

I've created a rivet less diaphragm replacement and will be letting Robert test it before I put it up in my store...

That is awesome, did you create those plates or did Robert do that? (edit: I reread and saw that you did the cuts..that is cool!!)


I have a diaphragm for a Reed Prentice (Craftsman) 1200B that has two metal plates. I have been trying to figure out a way to make a setup to press my own, but haven't gotten too far yet. They look to be identical plates, but the bottom side has the fold out tab removed.

 

[Rallyeguy]

Because the original had thin metal around (.015" thick) on both sides, and we only needed it on one side without rivets, I had them laser cut out of .030" stainless steel for similar weight and rigidity (which made the tabs difficult to bend consistently). With the thicker metal I ended up milling and filing a plate shaped similar to the tab and ground and shaped a punch out of tool steel to bend the tabs by hand. The same concept could be used for your Crafstman diaphragm, but I had several hundred centers laser cut and I don't know if that can be justified with the craftsman or not. It always depends on how many people need that. I'm pretty sure I've over-invested in this project but I carry everything else for this specific line of saws so I was stubborn about it, and took the gamble that I'll make it up in the end...

 

[Rallyeguy]

That is awesome, did you create those plates or did Robert do that? (edit: I reread and saw that you did the cuts..that is cool!!)
View attachment 484788

I have a diaphragm for a Reed Prentice (Craftsman) 1200B that has two metal plates. I have been trying to figure out a way to make a setup to press my own, but haven't gotten too far yet. They look to be identical plates, but the bottom side has the fold out tab removed.

View attachment 484789
View attachment 484790

If you simply need the diaphragm cut with rivet holes , I'd be able to do that for you....I'd need the original to work from, and I could send it all back so you could re-rivet and bond. If you think there's a market for this kind of thing, I could look into making these, but its been a bit of a slog to get everything. Quickest way for you to get your saw running would be to have me just make the diaphragm for you with the rivet holes.

 

[hacskaroly]

If you simply need the diaphragm cut with rivet holes , I'd be able to do that for you....I'd need the original to work from, and I could send it all back so you could re-rivet and bond. If you think there's a market for this kind of thing, I could look into making these, but its been a bit of a slog to get everything. Quickest way for you to get your saw running would be to have me just make the diaphragm for you with the rivet holes.

I appreciate it, I have the gasket material and diaphragm material cut, just haven't taken the step to punch out the rivet and place it in the new one. While I had the rivet punched I was going to try to figure out a die for pressing the two plates, might have to get a 3-D printer or something. The entire saw is apart right now getting cleaned and repaired so this isn't something I am in a hurry to do. Just seeing the ones you made is helping inspire me to take another look into this!!

I don't think there will be huge market for these so mass producing like the 3-25 diaphragm does not make sense. It's more of a "lets see if I can do this" situation. I may just end up making a few more spare diaphragms and then move the metal plates as the old ones wear out.

 

[cinci5]

Jeff (cini5) located this unusual piece of McCulloch for me.

View attachment 484715

View attachment 484716



View attachment 484717

View attachment 484718

I cleaned it up a bit before putting it up in the display area.

View attachment 484719

I'm guessing the "indoor" was maybe in the garage...I don't think I want to hang out in anyone's living room that requires a mulcher...

Mark

I'm glad it made it there in one piece.
I hope to find more oddity's in Tucson at some point.
I never heard back about the power tool set.
Jeff "cinci5"

 

[cinci5]

I appreciate it, I have the gasket material and diaphragm material cut, just haven't taken the step to punch out the rivet and place it in the new one. While I had the rivet punched I was going to try to figure out a die for pressing the two plates, might have to get a 3-D printer or something. The entire saw is apart right now getting cleaned and repaired so this isn't something I am in a hurry to do. Just seeing the ones you made is helping inspire me to take another look into this!!

I don't think there will be huge market for these so mass producing like the 3-25 diaphragm does not make sense. It's more of a "lets see if I can do this" situation. I may just end up making a few more spare diaphragms and then move the metal plates as the old ones wear out.

View attachment 484823

They used a 2 stage progressive die set. I spent 20 yrs in a punch and die tooling shop.

 

[heimannm]

On some of the early attempts for the one man saw diaphragms I just used LocTite 380 to secure the plate to the diaphragm. In one case (Model 77) the saw worked well even when I left it filled with fuel for over a year. In fact, I think that diaphragm is still in that saw and it must be 3 years or more.

Video from '23?

I did have one come loose from a two man saw diaphragm when I just used the 380...

Mark

 

[hacskaroly]

They used a 2 stage progressive die set. I spent 20 yrs in a punch and die tooling shop.

Good to know, now I need to work out how to make one!!

 

[Rallyeguy]

I appreciate it, I have the gasket material and diaphragm material cut, just haven't taken the step to punch out the rivet and place it in the new one. While I had the rivet punched I was going to try to figure out a die for pressing the two plates, might have to get a 3-D printer or something. The entire saw is apart right now getting cleaned and repaired so this isn't something I am in a hurry to do. Just seeing the ones you made is helping inspire me to take another look into this!!

I don't think there will be huge market for these so mass producing like the 3-25 diaphragm does not make sense. It's more of a "lets see if I can do this" situation. I may just end up making a few more spare diaphragms and then move the metal plates as the old ones wear out.

View attachment 484823

Looks like you have a handle on things.....

 

[Rallyeguy]

On some of the early attempts for the one man saw diaphragms I just used LocTite 380 to secure the plate to the diaphragm. In one case (Model 77) the saw worked well even when I left it filled with fuel for over a year. In fact, I think that diaphragm is still in that saw and it must be 3 years or more.

Video from '23?

I did have one come loose from a two man saw diaphragm when I just used the 380...

Mark

I've had good success with a similar adhesive. Hundreds of diaphragms out there over the last 4 years, no failures that I know of thus far.

 

[cinci5]

Same here, I've been making kits for many years with the locktite as a part of the assembly. There have been no questions or complaints so far. I find that a thin coating works best on rough surfaces.

 

[LAWN BOY]

 

[Squareground3691]