can it be welded, or do i buy new muffler.?

jwjsr · Jul 4, 2014

All I have is a bernzomatic and propane or Map gas cylinders??

George2615 · Jul 4, 2014

From the looks of the rust in the second pic I doubt you could get the metal clean enough to weld it. Think its time for a new one.

jwjsr · Jul 4, 2014

George2615 said:
From the looks of the rust in the second pic I doubt you could get the metal clean enough to weld it. Think its time for a new one.

You know a good source for kohler Command v twin 27 hp mufflers?

Markcuda · Jul 4, 2014

Have it brazed.

jwjsr · Jul 4, 2014

George2615 said:
From the looks of the rust in the second pic I doubt you could get the metal clean enough to weld it. Think its time for a new one.

i had someone put i new engine in about 7 years ago and they didn't put the heat thingy back on and resulted in the heat frying the choke and throttle cables. Now when the muffler busted it burned the wiring harness, but not enough to short anything,

George2615 · Jul 4, 2014

Here's a couple sites. Not sure of your exact model.

Kohler Command Pro Series Engine Parts | Great Selection | Great Prices | eReplacementParts.com

Kohler Mufflers

alchemysa · Jul 4, 2014

Make a tinplate cap that fits over the hole and pop rivet it into place. Seal it with lots black silicone and paint it black. Ive repaired a couple of mufflers this way. Its easy and if you do it neatly they look as good as new. (I do have a welder, but trying to weld thin, rusty metal like this is too hard.)

Probably what I would do in this case is use the existing cap and pop rivet some tabs to it that can then be pop rivetted to the side of the muffler.

George2615 · Jul 4, 2014

Markcuda said:
Have it brazed.

How do you braze rust?
Last time I tried to braze rust with a torch it disintegrated.

Soundguy · Jul 4, 2014

i don't see good weldable or brazeable material there. I think i'd go the pop rivit route. use soem of that strapping tape. or cut strips from roof tin.. etc.. drill locations. rivit and forget about it..

Arc weld · Jul 4, 2014

It might get too hot for brazing and that's only if you got ALL the rust off first.

CNC Dan · Jul 4, 2014

jwjsr said:
All I have is a bernzomatic and propane or Map gas cylinders??

Doesn't look too bad to me. You will need to sand off all the rust on both pieces. You may need to grind back some on the cap. The flair on the other piece will help fit to the cap if you need to take much off.

Use a 120 volt MIG welder, and use .025 wire and C25 gas.

jwjsr · Jul 4, 2014

Soundguy said:
i don't see good weldable or brazeable material there. I think i'd go the pop rivit route. use soem of that strapping tape. or cut strips from roof tin.. etc.. drill locations. rivit and forget about it..

Thanks everybody
Okay, new muff looks kinda expensive and I have a rivet gun I have never used and have some roof tin, but what is strapping tape?

Soundguy · Jul 4, 2014

strapping tape is that metal tape with holes in it. if you have spare roof tin to cut up.. that will be fine.

muddstopper · Jul 5, 2014

I hate working on that sort of thing, but poor folks learn to make do. This looks like the cap off the end of the muffler. Wire brush it as clean as you can and put the parts back together as best you can. Take a small mig and small wire and just start spot welding around the break. Yea, you might blow thru a few times, but once you get everything spot welded, you can cap the spot welds with a little better bead. Takes a little time and patience, but I have done several mufflers and tail pipes using the spot and stitch method.

Soundguy · Jul 5, 2014

it's not like it is a hermetrically sealed compressor motor. if he can get 3 good spot welds on it I'd call it a success and run with it. what do you have to loose on a rusted out small engine muffler?

jwjsr · Jul 5, 2014

Soundguy said:
it's not like it is a hermetrically sealed compressor motor. if he can get 3 good spot welds on it I'd call it a success and run with it. what do you have to loose on a rusted out small engine muffler?

i only have a bernzomatic(that i don't know really know how to use, I use it mostly to crystallize the sugar on honey buns) with either map gas or propane, i'm not gonna load it on my trailer and take it to the welder. I found my rivet pliers/gun and was looking around for rivets/ tin thinking i was gonna need to drive 25 miles to TSC and back for rivets and I saw the roll of bailing wire that the old man used to use like duck tape to fix everything, i see at least 3 good anchor points on and around the muffler to wrap it and twist it tight
Can it stand the heat?
Also, I'm afraid this JD-F-620 could quit on me anyday as it is old and has issues just waiting to reveal themselves.

Gary Fowler · Jul 5, 2014

Baling wire fixed a lot of model T Fords. Might work on a JD too if you paint it green

Soundguy · Jul 5, 2014

bailing wire will take the heat better than that half dead muffler..

jwjsr · Jul 5, 2014

Ok guys, Bailing wire it is, Thanks for your input, Once I figure out how to thread it to get some leverage I'll post a pic!!

CNC Dan · Jul 5, 2014

jwjsr said:
Ok guys, Bailing wire it is, Thanks for your input, Once I figure out how to thread it to get some leverage I'll post a pic!!

Find something to put over the cap to have the wires pull it twords the can. Like a short section of pipe or something. Have the wires cross over the end cap. Use the wire doubled, so you can use a nail to twist them untill tight.