VCCA Home Forums TECHNICAL - 1945 AND EARLIER 1912-1928 1928 early short muffler tail pipe

Looking for some pics on how this early muffler was installed.
I am missing the hanger brackets and don't know what they look like or where they would attach to the frame.
I have looked in many book's but have found nothing about exhaust system mountings or installation.
Could someone post some pic's of this installiation??, or pic's of the brackets.
Thank's a million.


Keeping vintage Chevy alive.

The 1928 only had one muffler and tail pipe. It was the first one to extend past the rear axle.

To see a picture, go to the center section of your Owner's Manual and view the layout.

What is your reference for the short muffler and tail pipe?

Hi AntiqueMechanic
My muffler for my 1928 Chevrolet 2dr AB National coach is original to the car with the short tail pipe
In the book (Early Chevrolet History)- by Floyd Clymer, it say's The early 1928 AB used a short muffler tail pipe, as had been used on previous models.
However, in mid season a full length tail pipe became standard.
But in my Owner's manual it just show's the full length tail pipe.
On the end of my tail pipe, there is no mark's of anything being welded on or clamped.



Keeping vintage Chevy alive.

My car came with a large bracket that bolted on to the frame.It was concave on the underside and the muffler was held up underneath by some sort of strapping. Beyond that there was a flattened tailpipe which ran back to about where there is a crossmember well short of the differential.There was no support past the muffler.
I did away with all that mainly because it was too noisey and resonated a lot at low revs which I suppose is why they went over to a full length tail pipe in the first place.
In my "Instructions for the operation and care of Chevrolet Motor Cars National Series AB January 1928 First Edition" it shows the short exhaust system and its location, in the centre of the book as Ray has mentioned.

Actually the bracket was riveted to the frame. A flat metal strap was passed up through the outside slot (toward frame rail) and back down the inside slot (toward the center of the car) extending 6+ inches or overlap. The other end of the strap was passed through a special cast or forged "bolt" that had a slot on the end (the bolt looks like a T with slot in the top of the T). A similar overlap was used on that end of the strap. When the bolt was put through the hole in the inside end of the bracket and tightened it clamped the muffler securely to the bracket. If done properly their was no movement or noise. I have a photo of the bracket somewhere. If I find it will see about posting here.

Hey Terry
You mentioned a flattened tail pipe in your post, was this tail pipe clamped to the muffler?? or welded on??



Keeping vintage Chevy alive.

Hi Chipper
would like to see pic's if you find them.
I looked on my frame for the rivet holes and only found one hole in the location, was there more than one rivet hole for this bracket??



Keeping vintage Chevy alive.

Nope only one rivet held the muffler bracket to the frame rail. Will look to see if I can find the pictures.

You can get a sense of how it was arranged by looking at the center page of your Owner's Manual.

It's my belief that originally in 1928 a short tail pipe system was in fact used. Besides having had discussions on this subject in the past with other '28 enthusists, the following information on the subject can be found as noted below.

The 1928 Chevrolet Engineering Data has a picture of the exhaust system (Manifold take down pipe with carburetor pre- heater, muffler, and tail pipe assembly). The tail pipe exits the muffler rear end cap at the six o'clock position and is a straight unit. Just measuring the muffler and the tail pipe in the picture indicates that the tail pipe portion is twice the length of the muffler. The following is what is written about the 1928 exhaust system in the Engineering data.

"The muffler, exhaust pipe and tail pipe, as shown on the opposite page, are substantially the same as last years' design. The tail pipe, however, is attached at the bottom of the rear muffler head instead of at the top. The tail pipe is flattened in the vertical and horizontal planes similar to the 1927 design to break up the flow of exhaust gases from the muffler and further muffle the exhaust".

In the September 1928 issue of the Chevrolet Service News, Page 46, there is the following statement: "New Parts Release, Muffler, Exhaust Pipe and Tail Pipe". "A new and improved Muffler, Exhaust Pipe and longer Tail Pipe is now available for service on National Series Passenger Cars and 1/2 Ton Trucks." "The extended tail pipe on this unit carries the gas fumes beyond the rear end of car." The notice goes on to list the part numbers of the individual items and one part number is given for the Muffler and Exhaust Pipe assembly and a second part number for the tail pipe assembly.

In the November 1928 Service News, page 58, another anouncement about the extended tail pipe entitled " Improved Muffler, Exhaust Pipe and Tail Pipe Installation.". This announcement shows the plan view and side view of new tail pipe hangers (2), one at the top of the kick-up area(over rear axle) and a second hanger affixed between the pipe and the fuel tank right mounting strap. A second drawing is provided showing the truck installation. What I find interesting about the passenger car drawing is the manner in which the tail pipe is cut off at the rear exit.

"The tail pipe is flattened in the vertical and horizontal planes similar to the 1927 design to break up the flow of exhaust gases from the muffler and further muffle the exhaust".

Did the 26 Touring have a similar tail pipe. If so, is there any information on where the flat spots were situated and how big they were?

I don't believe the Superior K (1925-26) had a tail pipe.

Roger

Yes, the 1925 & 26 did have a tail pipe. For details and explanation go to my article in the October 1983 G&D. It covers the flat areas and other details on the 25/26 exhaust system.

Thanks Ray - I did find the listing for a tail pipe in the January 1, 1926 parts list for Superior K models, but with no picture. The first time the tail pipe is shown in my copies of the Operation and Care literature is for the series V. My Superior K Instructions book dated June 1925 does not show a tail pipe.

Can you provide the date the tail pipe was introduced? Was it mid year 1925, when the early K, late K transition occurred?

Roger

Where would I get a copy of this article?

If you are a member of the VCCA they might be located on the club site in the members only area. If for some reason you are not a member, A membership for Christmas would be a nice present to yourself.

Hi Chipper
I bought a bracket off chevy b , but I don,t have the strap to hold the muffler, would you have a pic of the strap kicking around?? that you could post.
I may need to make this part and a pic would really help.
Thank's


Keeping vintage Chevy alive.

Your strap and bolt is available from Gary Wallace for $12.00 + S&H.

I used to make reproduction exhaust systems for all model Chev 4's, I sold over 600 before I got sick of making them. I sourced nos systems for 26/27 and 28 models and good used earlier ones for patterns. Down here in Aus I've never seen or heard of a system with a tailpipe right to the back. In all models including 28's the tailpipe was an optional extra. Most came with just an oval hole in the back of the muffler. There were 3 optional tailpipes, a very short one about 6" long (from memory), used mainly from 490 through to end 24. The next tail pipe was about 3 ft long and came out the top of the muffler, this was used on 26 to 27 models. In 28 the tailpipe came out the bottom of the muffler so as to clear the brake cross shafts and was about 4 ft long. This is what I would call "the longer tailpipe". All tailpipes from 25 to 28 had 2 restrictions pressed into them and the last 4" kicked down about 45 degrees and was also constricted at the end. The muffler was made from two round cases and the engine pipe ran through the muffler and bolted to the end plate. It was all held together by an end bolt in the engine pipe.This bolt also held the tailpipe in position via a bracket. The Aus hot boxes on 25 to 27 were quite different because of the RHD placement of the steering column. I can take photos of all parts if anyone is interested.
Chris

Hi chevguroo
I would be interested on seeing some pic's.
Thank's



Keeping vintage Chevy alive.

I'll get some photos and post then in the next couple of days
Chris