Hi, Philip! The flanges of the manifold and downpipe do not fit together
tightly. There is a doughnut gasket about 3/8" thick that fits between
them. The metal-covered side of this doughnut is toward the manifold. The
downpipe has a "steady brace" that attaches to the pipe about six inches
behind where the curve of the pipe transitions to the straight section to
the muffler. This brace consists of two pieces: a ring clamp that goes
around the pipe, and a piece attached to the lower two bolts of the gearbox
bellhousing. The two pieces of the "steady brace" are connected by a bolt.
I don't have any info about the second muffler at the rear, since my car
has never had one of those installed since I've owned it.
Steve Byers
Havelock, NC USA
'73 Midget GAN5UD126009G "OO NINE"
"It is better to remain silent, and be thought a fool
than to speak, and remove all doubt" -- Mark Twain
----------
> From: Philip Hubbard <phubbard@carroll.com>
> To: spridgets@Autox.Team.Net; mgs@Autox.Team.Net
> Subject: Exhaust line install questions
> Date: Thursday, May 07, 1998 1:09 AM
>
> Listers,
>
> Well, this evening I started putting in my new front pipe and muffler and
> so I naturally have a few questions. Context-I'm installing this in a
1974
> Midget which used to have a header and straight pipe in it. Now I'm
> putting in the stock exhaust manifold and resonator box/muffler set up.
>
> I put the exhaust manifold in a night or two ago with no worries.
Tonight
> I installed the front pipe.
>
> First question: is one expected to get an absolutely flush fit of the
> sliding flange on the front pipe with the flange on the manifold? Mine
is
> close but not quite. I put a small amount of high temp RTV at this joint
> and started tightening the bolts. I got to a point where I just
physically
> couldn't tighten anymore. Not much room to work in that area is there?
> Also, I was afraid to snap a stud.
>
> Second question: the front pipe is just attached at the manifold and
about
> 3/4 of the way to the end of the front pipe using one of those rubber
> mounts attached to a bracket. There aren't any more brackets to the car
> for the front pipe are there?
>
> Third question: I assume I just use some sealer and clamp at the joint
> between front pipe and muffler assembly?
>
> Fourth question: I have another one of those rubber mounts but can't see
> anywhere to attach it to the car. All I see are two straight bolts
coming
> out of the body. One on the driver's side and one on the passenger's
side.
> Are these the only two mounting points for the resonator box/muffler
> assembly? I expected to find a place to mount a u-bracket or something.
> There was one auspicious set of two holes almost at the very rear of the
> car on the driver's side, but the spacing is too narrow for either the
> rubber mount or a u-bracket. Get a smaller mount or bracket? Use the
> straight bolts with some sort of bracket?
>
> Can anyone help with how the muffler is attached to the car?
>
> Fifth and final question: I have two round rubber muffler bushings.
> Assuming that I use the obvious two straight bolts, can I further assume
> that I use one rubber bushing on each to cushion the ride of the muffler?
>
> Thanks for bearing with me. This whole car repair thing is new to me as
I
> know is obvious to all the gurus out there. :) But I am having a
perverse
> sort of fun figuring all this out with list help.
>
> Thanks for any answers to my myriad questions.
>
> Can't wait to drive again. Could be on the road Saturday if all works
out
> with the muffler install and I can get my carb float bowl leak figured
out.
> New seals and washers coming my way to help with that.
>
> Philip
>
> 1974 MG Midget (Burgundy)
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