Exhaust Manifold Question

PostPost by: Backmarker » Sat Jun 26, 2021 4:19 pm

Digging through the boot of our rescued S4 I found this manifold. Anyone recognize it? An earlier aftermarket piece? It’s serviceable but would need the female down pipe.

Other image is what a prior owner stuffed in. 2-3 pipes are pressed against the body.
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PostPost by: Billmack » Sat Jun 26, 2021 5:05 pm

That's an actual manifold from an early elan. Or a darn good copy
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PostPost by: skelteanema » Sun Jun 27, 2021 9:18 pm

Looks the same as the one on my 1967 S3 Elan.

My car has a small silencer just below this, with a flared pipe to fit to the manifold via a two part clamp. This is correct for may car according to the workshop manual/parts list/Bucklands book.

A real pain to fit and tighten the clamp.
Skittle. 1967 Elan S3 DHC
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PostPost by: billwill » Sun Jun 27, 2021 9:26 pm

From the Wiki
Image

Item 1 on the diagram, the relevant downpipe is item 3.

My s3 had one of these for most of its life, but I got a twin-two-branch system (7,8,9) in around 2001 and sold my old manifold.

Much wanted by originality-fetishists.
Bill Williams

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PostPost by: rgh0 » Mon Jun 28, 2021 9:50 am

Billmack wrote:That's an actual manifold from an early elan. Or a darn good copy


They were actually used up to the S4 for the standard non SE cars

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PostPost by: jk952 » Thu Jul 01, 2021 2:44 pm

I had one of item 3 original resonator some time back: inside the main pipe went straight through with if I recall correctly, four rows of four 5/16 holes, with rows alternatively offset half a pitch, in case anyone was interested. :)
Probably better access to things with the resonator vs headers.
Jack
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PostPost by: ncm » Sun Sep 19, 2021 8:43 pm

Other image is what a prior owner stuffed in. 2-3 pipes are pressed against the body.

The pipes are pressed against the body because the P.O. has fitted the engine mount spacers to the wrong ( carb) side of the block.....

Brian.

spacers.jpg and
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PostPost by: Bigbaldybloke » Sun Sep 19, 2021 11:58 pm

First picture of a tubular manifold looks remarkably like the Double S aftermarket one on my Plus 2.
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PostPost by: rgh0 » Mon Sep 20, 2021 12:54 am

I am amazed you can actually get the headers in at all with the spacers on the wrong side. How much of the chassis flange needed to be modified ?

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