[Healeys] Stainless exhaust again

Thu Jun 16 13:12:47 MDT 2022

yep, look at all that Mild steel baffling that came out.  whether it is the
welds or the perforated baffles, anything that has been metalworked or
welded will corrode first/fast whether the car is driven or not.

On Thu, Jun 16, 2022 at 9:23 AM <gradea1 at charter.net> wrote:

> Here is what happens to a mild steel resonator after a few years of
> sitting with water inside or hot/cold pipe driving conditions.  Keep
> spares, or go for stainless, and loose the sound effect. I blame this one
> on covid. Hank
>
> -----------------------------------------
> From: "Alan Seigrist"
> To: "Jean Caron"
> Cc: "healey Mail List"
> Sent: Thursday June 16 2022 9:10:27AM
> Subject: Re: [Healeys] Stainless exhaust again
>
> When you park the car after a long drive, water will collect in a mild
> steel exhaust system and relatively quickly the welds in the internal
> baffles on the silencer will corrode and break away. So whether you drive
> the car or not the silencers corrode internally.  having SS silencers is a
> good idea.  pipes can be mild steel and they will last forever.
>
> On Mon, 13 Jun 2022 at 2:56 PM, Jean Caron <
> vintage_roadster_restoration at hotmail.com> wrote:
>
>> With the few miles we put on our cars each year  I simply cannot see the
>> need for stainless steel exhaust when a MD steel one will last 20 + years
>> anyway.
>>
>> Jean
>>
>> Sent from my Bell Samsung device over Canada’s largest network.
>> ------------------------------
>> *From:* Healeys <healeys-bounces at autox.team.net> on behalf of Michael
>> Salter <michaelsalter at gmail.com>
>> *Sent:* Monday, June 13, 2022 4:50:18 PM
>> *To:* Stephen Hutchings <s.hutchings at rogers.com>
>> *Cc:* healey Mail List <healeys at autox.team.net>
>> *Subject:* Re: [Healeys] Stainless exhaust again
>>
>> I make my own front pipes for 100's because the cheapo repos are so
>> terrible.
>> I use mild steel for the pipes, which I actually had mandrel bent in New
>> Zealand because no one in Canada seemed to be able to bend them to the
>> correct radius but, and pretty soon I'll get to the point of this email, I
>> weld the stainless flex to the mild steel with my TIG welder.
>> I use mild steel for the pipes because I have yet to see a front pipe
>> that has rusted through unless the car is driven extensively on salted
>> roads.
>> I'm sure anyone who does TIG welding could do the welding for you in mild
>> steel but if you are prepared to pay handsomely FAB Stainless Welding could
>> do them in stainless 905 669 7400 ask for Frank.
>> BTW the stainless steel flex seems to leak slightly when first installed
>> but that stops after a little use, the gaps probably fill with carbon.
>>
>> M
>>
>> On Mon., Jun. 13, 2022, 3:54 p.m. Stephen Hutchings, <
>> s.hutchings at rogers.com> wrote:
>>
>> Just thought I’d bring you up to date on my quest for a leak free exhaust.
>> The new downpipes arrive today, and I did a test on them before going to
>> the trouble of putting them on the car.
>> Well…Bell exhaust systems need new welders, because the two pipes both
>> leak at the welds AND through the flex pipe!
>> I’m trying to find someone local to fix them, but most muffler shops say
>> they can't weld stainless.
>> If anyone knows someone in the Toronto area who can do this work, please
>> let me know.
>>
>> Thanks,
>> Stephen, BJ8
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