Author Topic: Dual port muffler mods, various.  (Read 578 times)

0 Members and 0 Guests are viewing this topic.

Offline Al Smith

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 2541
  • Karma: 127
Re: Dual port muffler mods, various.
« Reply #10 on: November 20, 2013, 09:58:16 pm »
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 .

Online 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 3937
  • Karma: 214
  • Location: Carpenter, Wyoming
Re: Dual port muffler mods, various.
« Reply #11 on: November 20, 2013, 10:06:41 pm »
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 .


You are right there is a bunch of different ways for muffler mods.   In fact I like that we have already shown 3 different ways to do a muffler mod.   Mig welding, Gas welding, and brazing.
PP 505, 475, 445.

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6367
  • Karma: 227
  • For The Love Of Chainsaws
  • Location: NCO
Re: Dual port muffler mods, various.
« Reply #12 on: November 20, 2013, 10:38:11 pm »
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.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Online 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 3937
  • Karma: 214
  • Location: Carpenter, Wyoming
Re: Dual port muffler mods, various.
« Reply #13 on: November 20, 2013, 11:49:09 pm »
How about silver soldering for muffler mods.   Anybody use that.
PP 505, 475, 445.

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6367
  • Karma: 227
  • For The Love Of Chainsaws
  • Location: NCO
Re: Dual port muffler mods, various.
« Reply #14 on: November 21, 2013, 12:10:15 am »
I at least thought about it but never actually tried it as I have both and the procedure is close to the same.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline stihls066

  • 6 cube
  • ****
  • Posts: 155
  • Karma: 7
  • Location: northern ca.
Re: Dual port muffler mods, various.
« Reply #15 on: November 21, 2013, 11:09:45 pm »
no welder so this is how I do it. never had one come loose.
chainsaws are chainsaws but stihl runs through my veins
Stihl 044,440,046,460,064,066,660,084,088,880
Ht 101,131
Mac sp125,125c,5-49

Offline Al Smith

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 2541
  • Karma: 127
Re: Dual port muffler mods, various.
« Reply #16 on: November 22, 2013, 04:21:37 am »
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 .

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6367
  • Karma: 227
  • For The Love Of Chainsaws
  • Location: NCO
Re: Dual port muffler mods, various.
« Reply #17 on: November 22, 2013, 08:23:36 am »
Regular brass torch welding rod will not stick to Ampco. It will act like the Ampco is not hot enough up until the Ampco is so hot it makes the zinc burn out of the brass and will never stick.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline Al Smith

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 2541
  • Karma: 127
Re: Dual port muffler mods, various.
« Reply #18 on: November 22, 2013, 09:55:56 pm »
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 " . ;D Gotta love it .

 

Related Topics

  Subject / Started by Replies Last post
9 Replies
498 Views
Last post January 31, 2012, 09:28:50 pm
by Al Smith
100 Replies
840 Views
Last post February 24, 2013, 12:54:05 pm
by jmester
1 Replies
177 Views
Last post October 19, 2013, 11:59:12 pm
by stihls066
8 Replies
293 Views
Last post November 14, 2013, 12:31:50 am
by 3000 FPS
28 Replies
194 Views
Last post December 22, 2013, 09:08:10 pm
by KilliansRedLeo
7 Replies
177 Views
Last post January 19, 2014, 09:10:11 am
by The Ripper
24 Replies
227 Views
Last post October 22, 2014, 08:38:44 pm
by 3000 FPS
25 Replies
703 Views
Last post December 02, 2014, 12:17:05 pm
by 7sleeper
9 Replies
431 Views
Last post June 30, 2016, 10:59:18 pm
by Al Smith
0 Replies
287 Views
Last post April 07, 2016, 01:41:04 pm
by Cut4fun .