Husqvarna 3-Series lot build

[hacskaroly]

Let soak over night. It did slightly work but not much. Gave it another day…no change.

Maybe your carbon is baked on really good!

 

[singinwoodwackr]

Maybe your carbon is baked on really good!

I seem to only get the worst carbon crust
I wonder what mix oil was used

 

[singinwoodwackr]

DMSO in a sonic cleaner will remove carbon in under 30 minutes.

But I don’t have a Hazmat suit

At $100/gal, how long does it last and be effective?
I have the proper gloves so that’s not an issue.

Best price I’ve found so far…

Industrial Solvent Dmso Gallon

DMSO (dimethylsulfoxide (CH3) SO Purity 99%. For use as a solvent only. Not for drug use. Cannot by shipped outside the continental U.S. or by air.

www.bigdweb.com

 

[hacskaroly]

I wonder what mix oil was used

SAE 30 most likely

 

[Reloaderguy]

But I don’t have a Hazmat suit

At $100/gal, how long does it last and be effective?
I have the proper gloves so that’s not an issue.

Best price I’ve found so far…

Industrial Solvent Dmso Gallon

DMSO (dimethylsulfoxide (CH3) SO Purity 99%. For use as a solvent only. Not for drug use. Cannot by shipped outside the continental U.S. or by air.

www.bigdweb.com

You don't need a gallon of 99%. It's generally mixed 10% to 20% in distilled water. Wear gloves, it isn't acid.

 

[singinwoodwackr]

You don't need a gallon of 99%. It's generally mixed 10% to 20% in distilled water. Wear gloves, it isn't acid.

Ah, so it is a concentrate at 99%, not used straight.
Same question, however. Is this something that can remain in the US tank for multiple uses, or, a 1-shot deal?
Currently I have a mixture of Dawn and Mean Green with water in the 2gal US.

 

[Reloaderguy]

Ah, so it is a concentrate at 99%, not used straight.
Same question, however. Is this something that can remain in the US tank for multiple uses, or, a 1-shot deal?
Currently I have a mixture of Dawn and Mean Green with water in the 2gal US.

The concentrate is mixed to 10% to 20% in solution with water. It's good for more than one use. I used a gallon of mix to clean a dozen silencers and various well used gun parts. I strained it back into a gallon jug when I was done. A heated sonic cleaner reduces the cycle time from days to minutes.

DMSO isn't toxic but will transmit anything in it across the blood brain barrier. Use Butyl gloves, you can get them on Amazon. The stuff is far less toxic than any of the various low concentration acids on the market.

 

[singinwoodwackr]

2+ days of soaking in Sea...
It got some of it


Getting the exhaust port cleared is easier

Not easily chipped out with a screwdriver

 

[srcarr52]

2+ days of soaking in Sea...
It got some of it
View attachment 486014

Getting the exhaust port cleared is easier View attachment 486016View attachment 486015

Not easily chipped out with a screwdriver

Glass bead blaster takes carbon out of a chamber really well.

 

[jacob j.]

I boil cylinders in straight Purple Power and it does pretty good with carbon. It doesn't get all of it but it gets most of it.

Another member uses Borax and said he has good luck with that.

 

[singinwoodwackr]

Glass bead blaster takes carbon out of a chamber really well.

Ah, hadn't tried that...have glass bead booth

 

[singinwoodwackr]

5min, all 4, lol

 

[hacskaroly]

5min, all 4, lol

Looks real good!!

 

[EFSM]

I often blow some glass beads down the transfer tunnels in a cylinder after I port the transfer ports, just to clean up any casting imperfections or roughness from the bur. It leaves a finish that I suspect flows very well, slightly rough but not too much so.

 

[bwalker]

I’ve not had good results with carbon removal with Seafoam. How long are you letting it soak?

Seafoam doesnt remove carbon at all... the Scotchbrite he mentioned is what takes it off.

 

[bwalker]

I boil cylinders in straight Purple Power and it does pretty good with carbon. It doesn't get all of it but it gets most of it.

Another member uses Borax and said he has good luck with that.

I seem to remember that boiling in baking soda and water will remove carbon.

 

[singinwoodwackr]

Seafoam doesnt remove carbon at all... the Scotchbrite he mentioned is what takes it off.

It did loosen it up a bit. But, the bead blast only took a few seconds…done.
Stuffed a paper towel in the cyl and cleaned out the exhaust port as well. Left a nice, smooth finish.

 

[bwalker]

It did loosen it up a bit. But, the bead blast only took a few seconds…done.
Stuffed a paper towel in the cyl and cleaned out the exhaust port as well. Left a nice, smooth finish.

Any petroleum product will soften it slightly but its the abrasive that does the work. A piece of thin card stock can be shaped into a roll for protecting the cylinder walls while blasting.

 

[Sloughfoot]

I boil cylinders in straight Purple Power and it does pretty good with carbon. It doesn't get all of it but it gets most of it.

Another member uses Borax and said he has good luck with that.

Been boiling parts in a cleaning solution ever since my USC died and it appears to be just as effective if not more so.

 

[bwalker]

Been boiling parts in a cleaning solution ever since my USC died and it appears to be just as effective if not more so.

I had a cleaner made by Castrol, the name of which I cant recall damage the magnesium engine covers on a KTM dirt bike back in the day. Be aware of that when cleaning mag parts.