Try and get a hose in the area where the pipes all come together
and stick the other end to your ear with the engine running
First you have to pull the ex pipe off the manifold.
The 2 sleeves that the 8 tubes go into appear as a horizontal rib inside of the outlet.
They will be open rather than a finished welded seam. Maybe shine a light at the tubes from above.
I think my brain is going ...it is tough to describe this so it is clear
Bob
PS If this is it take the manifold off and to a guy with a tig welder I had a rough time trying to seal mine up with an oxy-acete torch
- Original Message -----
From: Paul Hughes
To: Bob Bruce ; Peugeot - L - Yahoo Groups ; Randy Porter
Sent: Friday, September 01, 2006 10:55 AM
Subject: Re: [Peugeot-L] 405 Mi16 - new exhaust, car still gets loud and "pffffft" like when hot - > cat??
I'll have it looked at this morning...it's a CA/FL car
and as such, I'm hoping it's not the corrosion
issue...
I'll keep you posted.
Cheers,
Paul
- Bob Bruce <bobbruce@mts.net> wrote:
> I have seen a couple Mi16 exhaust manifolds rot out
> There are 8 pipes from the head.. they join in 2
> groups of 4
> the metal between these 2 groups rusts out
> It is only possible to weld this up with the
> manifold off the car
> the welding has to be done through the outlet hole
>
>
> Bob
>
>
> ----- Original Message -----
> From: Randy Porter
> To: Peugeot - L - Yahoo Groups
> Sent: Friday, September 01, 2006 1:00 AM
> Subject: Re: [Peugeot-L] 405 Mi16 - new exhaust,
> car still gets loud and "pffffft" like when hot - >
> cat??
>
>
> Hey Paul, I had a similar prob on my 89' a while
> back,
> turns out what it was is the donut gasket going
> bad,
> its the little round metalic gasket that is at the
> bottom of your exhaust header collector thingy,
> swap
> that out & I'm sure it will be fine.
>
> --- Paul Hughes <pjphughes@yahoo.com> wrote:
>
> > Hi everyone,
> >
> > With a new middle and rear exhaust system on the
> '91
> > Mi16, the car starts out sounding
> perfect...after 15
> > minutes or so, it gets the same "pffttt" or even
> a
> > puttering buzz noise that it had before.
> Basically
> > right under the driver's seat....
> >
> > I assume that now there wouldn't be a leak at
> the
> > cat...so either the cat gets loud as it gets
> hot, or
> > there is somewhere in front of the cat that has
> a
> > leak...
> >
> > I replaced a rattly cat on my '89 that rattled
> after
> > it got hot. Is this the likely culprit again? Or
> an
> > issue at the exhaust downpipe (as I look at my
> > Haynes
> > manual) My guess is yes. Ugh..and this means the
> > exhaust system was probably ok...
> >
> > Thanks in advance!
> > Paul
> >
>
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Received on Fri Sep 1 09:29:22 2006
