Pagoda SL Group

W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: vande17941 on January 23, 2016, 23:08:48

Title: Exhaust resonator construction
Post by: vande17941 on January 23, 2016, 23:08:48
I just replaced my muffler and it worked out well. I'd like to hear from anybody who has taken out a resonator and looked at the internals. Is it a baffle type system or a straight through insulated system?
Title: Re: Exhaust resonator construction
Post by: ja17 on January 24, 2016, 02:19:53
The original exhaust is straight through. The internal pipes are perforated with fiberglas sound deadening material surrounding. Works well, very little back pressure, but collects moisture. Baffle type mufflers and resonators are not correct for these cars.

Original systems are all weld-up, very difficult to install properly and they seldom are done correctly. A poorly installed exhaust can ruin the ride quality of the car. It takes me five to six hours to properly install an entire all weld up system these days. Mercedes changes suppliers from time  to time. Recently I got a factory new system from Mercedes for an early 230SL. The front pipes were about 1 1/2" too long making the exhaust hang down too far in the front. I had cut out a 1 1/2" section of each pipe and re-weld them before the system would hang correctly. We noticed that these parts were now being manufactured for Mercedes by Gillette.

Title: Re: Exhaust resonator construction
Post by: Benz Dr. on January 24, 2016, 07:08:20
The after market SS system I used recently had the exact same problem with the front pipes.  Seems they copy from each other. ::)
Title: Re: Exhaust resonator construction
Post by: wwheeler on January 26, 2016, 01:57:57
I welded the SS exhaust on my W111. And not being as skilled as the Dr. or Joe, it took me two days or better to make all of the adjustments. The exhaust on the Time valve is most definitely straight through w/ fiberglass. When the system was brand new, you could see a few strands of fiberglass on the rear bumper after a drive on the highway. 
Title: Re: Exhaust resonator construction
Post by: Benz Dr. on January 27, 2016, 22:34:50
Oh, I didn't do the repair. I took it to a muffler shop and they did it. If I need to, I have a guy a half mile down the road who is a very talented welder. He's so good he can weld paper, or wood to glass.


  Half of being good at what you do is finding people who are even better at it than you are.
Title: Re: Exhaust resonator construction
Post by: ja17 on January 28, 2016, 02:02:16
Quote
Half of being good at what you do is finding people who are even better at it than you are.
Wisely said Dan.
Title: Re: Exhaust resonator construction
Post by: wwheeler on January 28, 2016, 20:56:32
Really good welders (which I am not) are as amazing as very talented body men who use hammer and dollies. This one welder nearby welds parts for aerospace. One such part is a thin gauge ( 22 ga. or .030") aluminum that must be welded at an angle AND not show any distortions on the back side. Talk about heat control!

The best people at the top have even better people below them.
Title: Re: Exhaust resonator construction
Post by: Benz Dr. on January 28, 2016, 23:42:36
Really good welders (which I am not) are as amazing as very talented body men who use hammer and dollies. This one welder nearby welds parts for aerospace. One such part is a thin gauge ( 22 ga. or .030") aluminum that must be welded at an angle AND not show any distortions on the back side. Talk about heat control!

The best people at the top have even better people below them.


 Yeah, just ask my wife.   ;D
Title: Re: Exhaust resonator construction
Post by: catjim813 on February 10, 2016, 02:51:01
Which system is better? the Ansa, rear and center mufflers from Parts Geek or the complete system from Time Valve?  longevity and quality of sound?