McCulloch Chain Saws

[psuiewalsh]

Picked up a nice Mac 3-10DSP the other day, well it picked me. Stihl dealer said... I've got something for you, handed it to me and asked to give it a good home. Some older gentleman dropped it off. Maybe he's watching, if so... Thank You Sir, It will be well cared for!

Flat back carb? Any direct replacement for an easier option and less headache?

Overtrained did the 2-10 carb conversion not too long ago. I know that he ended up swapping alot of parts as the carb would not fit under the low top of the fuel tank and air cleaner. Joeymt was also involved from my limited memory.

 

[heimannm]

I have a 5-10 that was originally fit with a little flat back, someone made an adapter and install an SDC. Works easily enough on the 5-10 as it has a lot more clearance in the air box.

I also have at least three of the original McCulloch conversions in the attic with the NOS tank bottom, not sure of the other parts in the kit or even what the PN is, if I can remember I will get one down and take a photo.

Diaphragms for the 10 Series flat back or bullfrog come up on e-bay quite a bit, seems to be a couple different versions and I am not sure which is used with which version of the carburetor, again I have them at home, maybe I can remember to get some photos of those as well.

The little flat back / bullfrog is a unique carburetor, but as long as the diaphragm is O.K. they can be made to work well. I am sure the information for making the adjustments is burried in this thread somewhere, but if any one wants to short cut the search, PM me with an e-mail address and I will send the instructions.

3-10 DSP with bullfrog

5-10 with DSP operator removed, note the block under the carburetor to convert from the bullfrog wide mount to the more conventional SDC carburetor.

The 5-10 came from Drew Crane a few years back.

Mark

 

[heimannm]

pogo - I have a few of the 3-25 diaphragms, 19164. I may have some other parts as well, if you need an IPL PM me with your e-mail address and I can send a copy.

I have one 3-25 carburetor "kit" set aside that I prepared for logging22(?) and he never got back to me.

The 3-25 is historially significant, first one man saw by McCulloch, first McCulloch saw (maybe first saw period) with an all position diaphragm carburetor, 3 HP 25 pound miracle in the day. I would still like to find one of the bars with the holes in them to reduce the weight.

Mark

 

[PogoInTheWoods]

pogo - I have a few of the 3-25 diaphragms, 19164. I may have some other parts as well, if you need an IPL PMM me with your e-mail address and I can send a copy.

I have one 3-25 carburetor "kit" set aside that I prepared for logging22(?) and he never got back to me.

The 3-25 is historially significant, first one man saw by McCulloch, first McCulloch saw (maybe first saw period) with an all position diaphragm carburetor, 3 HP 25 pound miracle in the day. I would still like to find one of the bars with the holes in them to reduce the weight.

Mark

Thanks, Mark. Short road trip planned for today. Will update later.

 

[heimannm]

Now that I have my connection back, here is the full 3-25 carburetor.

Mark

 

[PogoInTheWoods]

3-25 Rescue Mission Accomplished

Longer day and a few more miles than anticipated, but a lonely 3-25 sitting in a corner at a little country mower and saw shop on an Ohio back road in Crawford County is now among new friends and seems much happier now.

Looks to be a later version in the 3-25 100000 series, but also seems to present a few questions regarding actual age from what I've been able to research so far about metal vs. plastic emblem, button/lever orientation above the trigger, recoil size/style, etc.

Any/all comments and advice/suggestions appreciated as usual. It obviously needs a little help, but isn't quite as rough as I was expecting. The shop owner obtained the saw as part of his father-in-law's estate who was the original owner. Claims it ran last year, but acknowledged the carb needs a major overhaul.

Some basic pics since it "did" happen. Was told it had the bar with the weight-saving holes by the guy who told me about the saw in the first place, which it obviously doesn't. It does, however, have the etched bar with the old McCulloch "geese emblem". Needs cleaned before I could get any detail in a pic, but I presume most of you have seen one before. Pretty cool, actually.

 

[struggle]

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View attachment 287322

Here is the picture of the box with the PTO side seal for 10-series mac. At least this is what I used on a Timbear Bear and it worked well.

While looking at the larger seal for the other side I realize I have the wrong seal as it is not double lipped. I will have to make a run next week to get the correct ones ordered as they all ready know the correct size. It was my fault for not checking the box when I left the place.

 

[Mo. Jim]

View attachment 287321
View attachment 287322

Here is the picture of the box with the PTO side seal for 10-series mac. At least this is what I used on a Timbear Bear and it worked well.

While looking at the larger seal for the other side I realize I have the wrong seal as it is not double lipped. I will have to make a run next week to get the correct ones ordered as they all ready know the correct size. It was my fault for not checking the box when I left the place.

Good news Shane,I found you a 800 cylinder,the bad news is it looks good enough to keep.

 

[saw2012]

ipl

Hi came across this site that has some ipls for free download
McCulloch Page

 

[Eccentric]

View attachment 287321
View attachment 287322

Here is the picture of the box with the PTO side seal for 10-series mac. At least this is what I used on a Timbear Bear and it worked well.

While looking at the larger seal for the other side I realize I have the wrong seal as it is not double lipped. I will have to make a run next week to get the correct ones ordered as they all ready know the correct size. It was my fault for not checking the box when I left the place.

Good info. Thanks Shane. I'll pick up an SKF6119 seal for the PTO side of the project PM-850.

I had a hunch.............and just looked at the PM610 IPL's (as well as SEVERAL 10-series IPL's) after reading that you'd used the seals in question in a Timberbear. Looks like all the 10-series saws used the same PTO side seal (110260).........and it was shared with the PM610 series saws. The FW side gets a bit more complicated however.

Many of the 10-series saws (including the CP55, PM555, PM10-10, PM10-10S, and 10-10A) used the same FW side seal (67906) as the PM610 saws. They also used the same 67905 FW side crank bearing as the PM610's. Most of the 70cc and 82cc 10-series saws (and some of the 54cc and 57cc saws) used a different FW side seal (61618), and different FW side bearing (63429B and 63429-2).

Not sure why Mac used different FW bearings and seals on some of these saws. The 70 and 82cc saws all seem to have the 63429/61618 bearing and seal combination (all the way from the CP70 and SP80 through the PM700, PM4300, PM8200, and DE80). The smaller 10-series saws are where the mystery comes in. Some smaller 10-series saws used the 67905/67906 bearing/seal combination. Mostly the later designs in the series. The earlier ones seem to mostly have the 63429/61618 combination.

 

[ozflea]

Hi came across this site that has some ipls for free download
McCulloch Page

Not bad a copy of my CD on Mac's dont forget to thank the fella who stole my months of work ............ McBob

And i read he's trying to protect his stuff

This website and its content is copyright of Small Engine Discount © 2012. All rights reserved.

Any redistribution or reproduction of part or all of the contents in any form is prohibited.

Owned and operated by Middleburg Power Equipment, Inc.

Whose now a thief

 

[RandyMac]

I have one of your CDs Bob, you signed it. Now I need the photo. :msp_mad:

 

[saw2012]

hi i found this site online and thought it might help members, i dont want to cause any arguments, i was only trying to be helpful, but i guess from the previous comment thats not the case.

 

[cpr]

Don't sweat it, Bob can't help it he's an Aussie :msp_biggrin:.

 

[ozflea]

Don't sweat it, Bob can't help it he's an Aussie :msp_biggrin:.

Yes an Aussie who has done the job that others didn't and put them on CD after purchasing all the IPL's man is it too much to ask to be compensated for my efforts some are just tight assed to care i don't make much out of the CD's after postage and handling plus packaging as thats done free .................. ain't my efforts worth something apparently not

http://www.ebay.com.au/itm/321095753854?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

McBob.

P.S Further info that i have gathered wont be added i guess i'll have that at least to myself
I also pay and run my web site for all to access free something i have never asked a red cent for

http://macbobaust.com/

I'm in correspondance as we read this with the fella who offers my stuff for nothing i'll now wait and see if he has any respect and honesty

 

[PogoInTheWoods]

I'm in correspondance as we read this with the fella who offers my stuff for nothing i'll now wait and see if he has any respect and honesty

Your stuff?

Curious as to whether you may have any Stihl IPL's or a copy of MediaCat anywhere in your reference material....or any other copyright protected material for that matter.

Stand down, dude. The guy ran across the info while doing a search and came up with what he came up with having no idea you had exclusive "rights" to the material. Conveyed it to the group as a courtesy. Period.

I also had no idea it was your exclusive material. But now that I know it is?

 

[ozflea]

No Stihl or otherstuff the only ones who whinge are those to tight to support a fellow member of this site unless your one of the free downloaders who won't spend a buck or fall in the same bucket as the chinese everyone whinges about

McBob.

Note i'm not complaining about the fellow who brought this to my attention

 

[jerrycmorrow]

The starter on my PM 60 has been sssllloooowwwww to retract. Finally took it down to see what. Thought it would just be dirty. But nooooo. Not dirty. The fiber or plastic bushing that the starter shaft rides against is split. Still in one piece but the split is apparently causing it to bind. Also looking for the flat fiber/plastic washer the recoil spring rides on. Anyone got these two parts that would be willing to make a deal for?

 

[ozflea]

After i had purchased my last McCulloch BP-1 I wrote and asked if i could have a bit of the history to the saw heres what i got back.

" Hello again Bob!

Thanks for your reply. I am glad to here that you have the parts to get it to run again! The BP-1 you bought came from a Case and Massey Ferguson dealership in Corruna, Michigan which my dad worked at, in the parts dept. and sales dept. from about 1960 to 1995. They also sold and serviced McCulloch chainsaws. My dad brought the BP-1 home sometime in the 1960s, as a customer had brought it back when hearing that there was a recall on them. My dad had always wanted to buy one when they came out, but with 7 of us kids to feed and clothe, he could not afford one. He used it a couple of times and it stopped running. He never bothered to take it apart to see what was wrong with it. It still had strong compression so he knew that it did'nt blow up. At any rate, it was probably a blessing that he never got it running again, as I am sure it would have ended up blowing a piston as many of them did. He gave the BP-1 to my younger brother back in the 1970s, and seeing that he likes to to things apart, he discovered the broken shaft inside it. Realizing that parts were unavailable, he carefully put all the parts in a box. Fast forward to Feb. 2013. As he was cleaning and re arranging his polebarn, he saw a box covered with dust that had not been touched in years,and upon finding the saw in it, he decided to put it back together and sell it. It has not seen the light of day since my brother originally took it apart in the early 1970s. Thanks again for purchasing the saw and preserving a rare piece of chainsaw history!!!!!

John S. "

McBob.

 

[mad murdock]

That is neat Bob! Great backstory on an equally great saw!