Installing 27 muffler

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signsup
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Installing 27 muffler

Post by signsup » Sat Feb 10, 2024 6:35 pm

Bubba had a Bubba muffler on the 27 depot hack that was rotten, so off it came, the exhaust pipe and packing nut look good. So I pulled a cast iron muffler off the shelf and two nuts and bolts. Slip the cast iron muffler on and go to bolt up and only one bolt hole in frame. The lone hole almost fits the rear mount for the muffler, if I trim 1" off the exhaust pipe, I'll be good. But no front mounting hole and no feel that one was ever there and welded close for some reason.
So, I presumed the 26 27 car used a different muffler, but all the vendors show the same muffler from early theens through 27 .

Is there a hole somewhere I'm missing? Am I in the right location Before I hit the send button I went down and checked to make sure what I was feeling as the rear hole was not, in fact, the forward hole, but the rear hole is just forward of the rear crossmember, so it the rear hole. Where did my forward hole disappear to?

I can always drill. But, just fcurious what I'm not doing correctly.
muffler 1.JPG
muffler 2.JPG
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RajoRacer
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Re: Installing 27 muffler

Post by RajoRacer » Sat Feb 10, 2024 6:55 pm

The later muffler was pressed steel with one mounting ear thus your late frame only had one factory hole !


Topic author
signsup
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Re: Installing 27 muffler

Post by signsup » Sat Feb 10, 2024 8:07 pm

Will the one rear mounting bolt hold up the muffler with two cast ends? Should I drill the second hole and install two bolts and castle nuts? Or obtain a newer fu muffler? This project will be a Model T salad, so I just want something that appears correct to the period and functions reasonably well.
But thanks for the missing hole info.
Why do we drive on parkways and park on driveways?

A bunch of old cars
Sometimes they run.
Sometimes, they don't.

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Humblej
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Re: Installing 27 muffler

Post by Humblej » Sat Feb 10, 2024 8:33 pm

Dont waste your time, get the right muffler.


Allan
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Re: Installing 27 muffler

Post by Allan » Sat Feb 10, 2024 8:43 pm

The right muffler will need the right exhaust pipe. It was long enough to go clear through to the back of the muffler, so it did not have a slip joint at the front. Save your funds and drill the front hole.

Allan from down under.


Art M
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Re: Installing 27 muffler

Post by Art M » Sat Feb 10, 2024 8:51 pm

I agree with Jeff. I don't like to drill holes in my Model T, but I do like having support at each each end of the muffler.


Art M
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Re: Installing 27 muffler

Post by Art M » Sat Feb 10, 2024 8:53 pm

I mean I agree with Allen. Drill the hole

Art Mirtes

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RajoRacer
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Re: Installing 27 muffler

Post by RajoRacer » Sun Feb 11, 2024 11:49 am

Allan - Larry Smith is no longer producing the "long" pipe that is the internal part of a stock pressed steel muffler.


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Re: Installing 27 muffler

Post by ModelTWoods » Sun Feb 11, 2024 12:19 pm

You didn't mention whether you measured the length of your exhaust pipe and what that measurement was, if you did. Chances are, you don't have the original 26-27 (long pipe that inserted through the front muffler end; went all the way to the back muffler end, and served as the smallest pipe or shell in the muffler). If by any stroke of luck, you had the original (long) pipe (which aren't being reproduced) it would be a shame and almost a criminal offense to cut even an inch off a very rare exhaust pipe. On the other hand, if you have a standard length pipe, have no inhibitions about cutting it and drilling a hole in your frame, if that is your intention. The cast iron muffler ends are heavy and add weight to the exhaust system. A much better choice of muffler would be the reproduction "late" T take-apart" muffler with pressed steel ends. it is almost a duplicate of the original 26-27 muffler, but the exhaust pipe doesn't slide all the way into the muffler, but only into a 'nipple' on the muffler front end. Most suppliers have them in their catalogs.


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Re: Installing 27 muffler

Post by John Codman » Sun Feb 11, 2024 12:50 pm

Humblej wrote:
Sat Feb 10, 2024 8:33 pm
Dont waste your time, get the right muffler.
Agreed.


Topic author
signsup
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Re: Installing 27 muffler

Post by signsup » Sun Feb 11, 2024 12:56 pm

The Bubba muffler that was on the depot hack had a "standard" length exhaust pipe and then a muffler and then a 2 foot long tail pipe added. I took my cast iron muffler apart and cleaned up both innter tubes and it slips right on the exhaust pipe all the way to the inner pipes. I'm still about 1" long to get to the rear mounting hole in my frame, so I'm leaning twards cutting off 1" on the exhaust pipe, installing the cast iron muffler, blting up to the rear hole and using the front mounting leg on the muffler as a template, drilling a hole in the frame to secure it with two bolts and castle nuts and cotter pins, then tighten up my front packing nut and see how it sounds.

My other exhaust pipe I have in stock is the same "standard" length, but has a bolted in cut out that I'm not interested in using on the ambulance project. The cutout has a lever to operate it from the floor of the T, but no linkage, spring or pedal to operate it. So, back on the shelf for another project.
Why do we drive on parkways and park on driveways?

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Sometimes they run.
Sometimes, they don't.


DHort
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Re: Installing 27 muffler

Post by DHort » Sun Feb 11, 2024 1:22 pm

If your hack is a parts salad, just hang a tractor muffler and use this clamp. It allows you to attach the muffler correctly to the exhaust pipe, and this changer has some flexibility in it as opposed to a rigid fixed muffler. Use any tail pipe you want, especially if you want to direct the exhaust downward
fo-11muffler.jpg
fo-11muffler.jpg (1016 Bytes) Viewed 493 times
FO-11 muffler
mufflerhanger.jpg
mufflerhanger.jpg (4.05 KiB) Viewed 493 times
hanger available at any auto shop


Topic author
signsup
Posts: 238
Joined: Thu Jan 10, 2019 12:56 pm
First Name: Robert
Last Name: Brough
* REQUIRED* Type and Year of Model Ts owned: 1915 War Wagon 1927 Depot Hack 1927 TT
Location: Winston, GA
MTFCA Number: 31990
MTFCI Number: 31990
Board Member Since: 2015

Re: Installing 27 muffler

Post by signsup » Sun Feb 11, 2024 5:55 pm

That's always an option as well. I think that is exactly what I removed to start all this. Looks like Bubba had run screwdriver in the bottom to give it more rumble. I'm tweeking in the engine and carb and wanted the closest running condition to stock as I could get, so replacing muffler with something.
muffler tractor.JPG
Why do we drive on parkways and park on driveways?

A bunch of old cars
Sometimes they run.
Sometimes, they don't.


jiminbartow
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Re: Installing 27 muffler

Post by jiminbartow » Mon Feb 12, 2024 1:40 pm

Instead of drilling a hole, can you use a small C-clamp to secure the muffler bracket on the one unsupported end?


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Re: Installing 27 muffler

Post by ModelTWoods » Mon Feb 12, 2024 2:02 pm

jiminbartow wrote:
Mon Feb 12, 2024 1:40 pm
Instead of drilling a hole, can you use a small C-clamp to secure the muffler bracket on the one unsupported end?
Jim, He's already mentioned this vehicle is a Model T "parts salad", so obviously, drilling a hole in the frame doesn't bother him.


Original Smith
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Re: Installing 27 muffler

Post by Original Smith » Mon Feb 12, 2024 2:35 pm

If Ford could make the original long pipe, I think Langs, Snyders, Chaffins should all band together and get them made correctly. I had 50 made a couple of years ago, and they weren't made the original way, but with my limited $$$ they were the best I could do. They sold fast!


Allan
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Re: Installing 27 muffler

Post by Allan » Mon Feb 12, 2024 6:20 pm

I make these Canadian spec mufflers with a deflector.

The small centre pipe is the same as the exhaust pipe. It is expanded at the front end to receive the exhaust pipe. This expansion is left long so the muffler is well supported, without a clamp.The front end piece of the muffler stops on the expanded end, just as it did on the raised ridge of the USA made exhaust pipes.

The Canadians stopped the front end of their mufflers by drilling the pipe and fitting a large split pin. There was a notch in the end piece to engage on the split pin.
20240206_094750.jpg
20240206_094802.jpg
Allan from down under.

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Re: Installing 27 muffler

Post by varmint » Tue Feb 13, 2024 5:16 pm

I used stainless steel hand rail and a stainless steel paper towel dispenser from a rest room to weld up my own muffler and exhaust in the shape it should be for a late 26 coupe. It will outlive the car and me.
IMG_20230607_221818028b.jpg
Vern (Vieux Carre)

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