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Elf guardian
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7,712 Posts
Discussion Starter · #1 ·
Being the original muffler is no longer available, I thought I'd start

a thread about what options one has, when the inevitable happens.

Another reason is, I've seen too many fixes like these. :wallbanging:

Motor vehicle Automotive exterior Red Vehicle Gas Vehicle Automotive tire Tire Hood Motor vehicle

There are some mufflers available, that sort of fit, but not perfectly. I've

seen a couple where the grill had to be forced wider by about 1/2" to

get around the muffler. That puts a twist on the hood hinge, which

will then fail.

I'm sure there are many ways to deal with it. Lets document them here, so

others can avoid the trial and error process.

Here is one solution I came up with recently.

Wheel Tire Automotive tire Vehicle Motor vehicle

List of parts used, and some measurements for the support

bracket.

Handwriting Black Wood Font Material property

More pics. The bracket is bolted to the engine using a longer bolt, securing it

and the starter.

Automotive tire Wood Motor vehicle Vehicle brake Automotive wheel system Motor vehicle Vehicle Automotive design Gas Automotive exterior

Fluid Household hardware Door Fixture Wood Motor vehicle Gas Auto part Nut Machine

Automotive tire Drinkware Cup Cylinder Waste containment Vehicle brake Automotive tire Motor vehicle Gas Machine tool
 

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Super Moderator
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54,469 Posts
What is the inlet/outlet dia. of that muffler?
 

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3,832 Posts
Will I like the stack design but I think the muffler looks a little too big. Here is one I recently ordered for my MTD 990 a little smaller but different ID size. I wanted to avoid using plumbing pipes & have a piece of mandrel bent. By the time they allowed for the radius it would bump the muffler way to far outside of the hood...looked bad that way. I'm going with the typical 1" pipe nipple & fittings like you.

http://www.ebay.com/itm/261032016126?_trksid=p2060778.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I have this one on my Bolens H16 which runs well with it. I put it on my 990 to see how it worked but it acted like it caused too much back pressure. It might be the sharp 90 degree so I opted out to the straight muffler inlet & will be using the fittings.

http://www.ebay.com/itm/191409800381?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

This will be a good topic Will especially since my MF12 is patiently waiting to be put back together. :thumbs:
 

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Tractorholic
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626 Posts
There is a pretty close match to original avaialbe directly from Kohler, I think it took a little bit of fab work but overall looks as if it came that way. No pics of it, but have a look through the Kohler parts book on the K321 engine.
 

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Electric Tractors
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5,639 Posts
Looks good Will I'm working on my 16 now trying to figure out how to make a muffler fit under the grill, so far not much luck, maybe I need to do what you did.
 

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Elf guardian
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7,712 Posts
Discussion Starter · #9 ·
I was asked how I got the street elbow to fit inside the grill.

Automotive tire Wood Motor vehicle Vehicle brake Gas

It was there when I got it. It is loose, and the nut does secure it. Possibly

it was shortened, and maybe the OD of the thread was ground down a bit.

I looks a bit short
 

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Proud to be Deplorable
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29,904 Posts
Yes Doug, sounds good. I'll get a vid clip some day.
Maybe, but you'll have to get your wife or daughters to show you how to upload. Maybe even that weird kid down the street... Heck, even the old lady around the corner from you can probably do it.

Until then, we will all just have to be satisfied with your written description of how wonderful it is.

:poke:
 

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Elf guardian
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7,712 Posts
Discussion Starter · #13 ·
Maybe, but you'll have to get your wife or daughters to show you how to upload. Maybe even that weird kid down the street... Heck, even the old lady around the corner from you can probably do it.

Until then, we will all just have to be satisfied with your written description of how wonderful it is.

:poke:
:ah_shoot: Yeah, you're probably right there Alan. After a year and a bit, I just finally got my scanner

installed and working.

Check it out, I just scanned this. Rectangle Font Parallel Handwriting Paper Senior discount!!

I'm 53, and she ( teller ) knows me. I didn't notice it, and just put the receipt on the table at home.

The wife spotted it, so that's a big joke now!

Next time I go in there, I think I'll call her Mam. :D
 

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I was asked how I got the street elbow to fit inside the grill.

attachicon.gif
DSCF2849-2.jpg

It was there when I got it. It is loose, and the nut does secure it. Possibly

it was shortened, and maybe the OD of the thread was ground down a bit.

I looks a bit short
Looks like electrical conduit with that notched lock nut,,,but whatever works and so now your engine just purrs,,,vvvrrrrroooom,,no more vvvrrrrrrooom pop pop...good job...
 

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Super Moderator
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54,469 Posts
:ah_shoot: Yeah, you're probably right there Alan. After a year and a bit, I just finally got my scanner

installed and working.

Check it out, I just scanned this.
attachicon.gif
senior discount2.jpg Senior discount!!

I'm 53, and she ( teller ) knows me. I didn't notice it, and just put the receipt on the table at home.

The wife spotted it, so that's a big joke now!

Next time I go in there, I think I'll call her Mam. :D
Hey! Your movin' on up!
 
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At least your 53 Will. I had a young lady ask me for my senior card when I was 45. I gave her a hard time just messing with her about ruining my day. I would love to hear that video...does it have that solid thumping sound.
 

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Electric Tractors
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5,639 Posts
This is how I made a muffler for a MF16 that fits under the hood similar to the factory one.
I figured I'd try to make the standard reverse flow muffler something like these.
Cylinder Tool Metal Rectangle Nickel Microphone Automotive lighting Gas Cylinder Office supplies
Mine only has 2 tubes inside the short one that that connects one end to the other I don't have.

Started with a piece of 4" pipe, some 1-1/8" thin wall pipe and some pipe fittings.
Also 4 standard round metal electrical box covers.
Brown Wood Font Gas Tints and shades

Cut all the parts to length and drilled many holes, the 2 round plates with the 2 big holes in them also have 2 smaller 3/4" holes in the them, these let the exhaust go from 1 end to the other inside the muffler.
Wood Gas Auto part Cylinder Metal
The inside part is show backwards, rotate 180 deg and it's right. (bottom to top)

All put together and welded.
Cylinder Gas Wood Electric blue Metal

Installed in the tractor, covers and heat shields in place.
Gas Machine Cylinder Metal Nut Gas Auto part Machine Metal Bumper
Wheel Motor vehicle Automotive tire Train Vehicle Tire Wheel Vehicle Automotive tire Motor vehicle

Sound test.


This now makes the tractor mobile and usable again. :dancingbanana: :dancingbanana: :dancingbanana:
 

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Nice job & a good idea using the junction box covers.
 
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