MCCULLOCH The official McCulloch thread

[heimannm]

I was going to clean up this 33B to help round out the series, but this one is rather beyond hope.









You really could not tell from the outside how bad it was aside from the fact is was locked up. I will have to poke around a bit in the attic to see if I happen to have another 33B hidden away. I also need a 35A with the gearbox and bar & chain, I may have to see if my brother is ready to sell off his NIB 35A.



Mark

 

[Gizzard]

That 33b & brothers 35a sure fills in for pictures of the “Good, Bad and the Ugly”. The ugly just about had a ball peen hammer in each picture.

 

[Dream]

33B looks like something I would end up with, except you probably didnt overpay for it, and I would have. I kinda enjoy the bad ones. Good lesson on what neglect does to something. I like to see what I can salvage.

 

[Dream]

You know how projects beget projects.
Decided to drag the old parts washer I got 20 some odd years ago out and see if it was worth fixing.
First though, I had to move two sets of sawhorses, a gas cooker that I dont use any more, lots of lumber from the recent remodelling project, some parts for work, campimg gear, my table saw that had to be broken down and stowed, and of course about 8 saws in various states of undress. Most of this "treasure" went out to the small storage building at the back of the property(except for the saws of course), where I found a few more Craftsman saws that I needed to bring back to safety. Cant have them out there where I cant see them now could I?
So I finally dragged the parts washer out of its hole(it made a great "shelf" for half a dozen saws).
Pumped out a couple of gallons of foul smelling kerosene residue, then scraped off most of the crust tjat was beneath. Some of it had hardened to the point I had to tap on it to break it before I could scrape it off. Its gettimg better. I need to finish tje outside and maybe rattle can it so it looks better. On a good note, the pump I thought was bad actually works, so I just need a hose and brush. Think Horrible freight sells those. Going to male a tray to keep everything above the solvent. Thinking about rigging up a layer of cloth under the tray, rather between two layers of fine expanded metal. Maybe catch some of the big stuff before it goes back in the sump.
Anyone tried that approach? Oh, kids added the sticker uears ago. One of my sons friends dad did restaurant maintenance. Stickers from a Wendy's ad campaign. LOL!

 

[Dream]

oh, and I found another PM700 carcass that got shoved behind it when I pulled it out. That was almost as good as Christmas!

 

[Gizzard]

"open til midnight"...that parts washer is hungry.

 

[Dream]

It's thirsty right now too. Priced some stuff today. High flashpoint fluid from tractor supply is 38 bucks for 5 gallons. I'll need 10.
Low odor mineral spirits is about 13 bucks a gallon. Got a friend that buys mineral spirits in bulk. Getting a price from him.

 

[Dream]

Kids put this one on the garage door.

 

[Yukon Stihl]

Hi All
So I bought a 755 that had "ran a few years ago" l have never been inside one of these and the first views of the carb are not promising.
So from the MAC experts what should I do for this carb, or can anything be done at this point?
Thanks

 

[Dream]

Ouch! Hows the inside of the tanks and cylinder look?
These are beyond my experience level, but several others can help. What I do know is that white oxide is not good. Oxidation is a chemical reaction, usually caused by water or saw sitting on concrete. It leaves pitting behind.

 

[PogoInTheWoods]

So from the MAC experts what should I do for this carb, or can anything be done at this point?

You really don't have much choice but to attempt a restoration unless you can find a donor saw with the components you need. I believe the 5-49 and 1225A share the same carburation setup..., maybe others as well.

You might try a saturation with/in WD-40 for starters to see if that will loosen the oxidation enough to clean it with an appropriate type of brush. A lengthy bath in Berryman Chem Dip would certainly be another recommended approach.

Just ran across this while searching for 7-55 info out of curiosity. This guy isn't messin' around. Very cool.

​

 

[Dream]

So phase 1 of the McBrick project has hit a snag.
Piston looked good, but I was curious, so I pulled it. Glad I did. Piston is fine. Few scratches. Havent measured, but looks good.
Rings were worn out . Didnt measure, but I could tell. Then I looked in the cylinder.
Pics are bad, but plating is screwed. Lots missing. If the parts saw isnt good, this is all spare parts.
Piston pics taken through the 1.75x magnifier.

 

[Dream]

You really don't have much choice but to attempt a restoration unless you can find a donor saw with the components you need. I believe the 5-49 and 1225A share the same carburation setup..., maybe others as well.

You might try a saturation with/in WD-40 for starters to see if that will loosen the oxidation enough to clean it with an appropriate type of brush. A lengthy bath in Berryman Chem Dip would certainly be another recommended approach.

Just ran across this while searching for 7-55 info out of curiosity. This guy isn't messin' around. Very cool.

​

Yukon, anything that casts a shadow can be fixed. Its just a matter of time, money, and desire.
If the corrosion isnt on critical tolerance moving parts, like carb and reciprocating assembly, it can be worked around or built back up with something like JB Weld. Need something to clean the crud out and then neutralize.

 

[Dream]

Worked on the parts washer tray today. Hacked together a frame from scrap angle iron. Laid down a piece of expanded metal I had.
Covered that with 2 layers of t shirt cloth from the rag bag. Covered with a piece of aluminum screen wire, then screwed down some stainless expanded metal I had. Had to piece that in, since it was too narrow.
Hoping the cloth will catch a lot of the crud, then I can let it dry for a few days, then clean off with the shop vac. Maybe that Will help keep the fluid cleaner longer.

 

[Al Smith]

I've saved McBricks that were worse than that and they are still running .Those saws are a lot tougher than they look .

 

[Dream]

No worries Al. I tore the parts saw down today. Piston and cylinder are pristine! Still see cross hatch. Also, the donor has the piston with two thick rings, instead of the thin ones on the other one. I think the ole McBricks gonna be just fine if I can stop the oil leak. The diaphragm was blown out at the edge where the manual oiler port is. Parts saw diaphragm is better. Not great, but maybe by carefully adding just a touch of sealer around the edges it will hold.

 

[heimannm]

Bob Johnson (607 638 9297) has/had the gaskets and diaphragms for the 600 Series oilers, his prices are quite reasonable.

Mark

 

[Dream]

Thanks Mark. Waiting on the brush and hose to come in for the parts washer, and maybe have a line on some solvent for it. Once I get that sorted, I'll clean it all up and take the best parts from the two to make one runner.
I know these arent popular, but they are pretty easy to work on, unlike the XL homie I'm trying to finish up for a "truck saw".
Fighting me til the finish.

 

[chrissalas1]

Anyone knows if the euromac s33 bar studs are screwed or pressure?

 

[Al Smith]

Bob Johnson (607 638 9297) has/had the gaskets and diaphragms for the 600 Series oilers, his prices are quite reasonable.

Mark

Speaking of Bob Johnson ,he was a hot saw runner a long time ago ,I had made contact with him a few times and mentioned my cousin who worked in a small engine shop in Wilmington Ohio .He knew the owner of that shop .--small world .However he didn't remember a triple carbed 090 Stihl .--Maybe it wasn't as hot as ole cous said it was ?