[Mgs] Exhaust system

[Max Heim]

Good point. At one time my resonator developed a crack at the input pipe. Another time, the head pipe had a rust-through hole  near the junction. In both cases, the perceived exhaust noise increased immensely. Welding these up returned the sound to normal.

--
Max Heim
mvheim at sonic.net



> On Nov 28, 2017, at 8:04 AM, Charley & Peggy Robinson via Mgs <mgs at autox.team.net> wrote:
> 
> I'e been rethinking this.  First, I used the term "front muffler" in my earlier post.  Actually, it's not a muffler; it's a resonator. It's essentially an expansion chamber whose purpose is to cancel out the high frequency exhaust pulses; the sharp barks IOW.  Some resonators have a shell within a shell with insulation in between to do some quieting; some don't.
> Since it appears that the exhaust sound you object to is localized in the cockpit area, I wonder if your resonator might be cracked or possibly touching the underside of the floor pan or a loose connection.  If not, increasing the resonator volume or its type of construction & insulation might be a way to go.  Just have to get the car on a lift and have a look-see.
> 
> CR
> On 11/27/2017 6:40 PM, John Difede via Mgs wrote:
>> Thanks to all for your advice and comments.  I am reconsidering my idea to purchase a new exhaust system because I have no guarantee that it will be quieter than my current exhaust.   I am thinking of replacing my middle “bomb box” section with the oval shape muffler and see where I end up.  If need be I can then replace the rear section.  I am planning to use mild steel connected to the stainless front pipe.
>> 
>> John DiFede
>> 1973 MGB
>> Sent from my iPhone
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