Chainsaw Repair

Muffler mods are another subject there must be ten thousand ways to do it .You can braze a shroud on ,it won't melt off .Way back when we brazed headers for sprint cars running alkie and they never melted off .

This shiny piece of metal is shrounding on a Stihl 038 AV I twiddled with .

All my muffler mods over the years have been brazed. Never had one change any after use.

The brass will not stick to Black oxide, cadmium, or (naturally) chromium. They must be thoroughly clean to bare metal before lighting the torch.

I at least thought about it but never actually tried it as I have both and the procedure is close to the same.

The only thing I use silver solder on is either refridgeration tubing or making carbide lathe tools .The danged stuff is expensive .

Brass has a lot of uses .There are a lot of alloys depending on the usage .
"Easy flow " is soft and melts at a lower temp .I have some rods that are about the same as
"Ampco " brass ,hard as a rock.I used it to repair a worm wheel feed on a drill press.Fact I've still got a sliver in my thumb from cutting the gear .I also have some brass electrods .I have no idea what they are for,cast iron I suppose in place of nickle maybe .

It was hard brass over what was once a cast iron worm wheel not ampco .I've got pictures of it hobbed on an engine lathe of which I embarrassed the dickens out of a young tool and die maker who said it couldn't be done .One old coot toolmaker about my age now just rolled on the floor when I showed the pictures .He said --old Smitty showed you up and all he is is a "sparky " . Gotta love it .