Ruby, Exhaust Downpipe touching chassis

[JonE]

ok, next thing is what manifold have you got - if its not a Ruby one then the angle it sends the downpipe off at could be slightly different?

[John Cornforth]

I had this problem after fitting a non-standard exhaust manifold.  I solved it by getting a friend with a milling machine to make me a very slightly wedge shaped steel spacer to fit between the manifold and downpipe flanges.  I also needed two flange gaskets and slightly longer bolts.

[Ilmoro]

OK...Looking at Colin's photo, my pipe is not straight like the one in the photo, but kicks out toward the wing slightly. 

John, I think you have provided the solution. I will mill a wedge shaped insert between the pipe flange and manifold.

Thanks for the info.

Ian

By the way, how do you post photos? I can't find the instructions.

[Jeff Taylor]

Ian,

Posting Photos link below:

https://www.austinsevenfriends.co.uk/for...hp?tid=102

[Tony Press]

OK...Looking at Colin's photo, my pipe is not straight like the one in the photo, but kicks out toward the wing slightly. 

John, I think you have provided the solution. I will mill a wedge shaped insert between the pipe flange and manifold.

Thanks for the info.

Ian

By the way, how do you post photos? I can't find the instructions.

Under 'Important Threads' at the top of the first page see:

Posting images on the new forum

[Ilmoro]

  IMG_3762.JPG (Size: 48.85 KB / Downloads: 82)
  IMG_3761.JPG (Size: 27.41 KB / Downloads: 82)
  ex1.jpg (Size: 73.62 KB / Downloads: 82) For reference: I sorted this by machining a 3mm wedge in a steel flange (placed between the exhaust manifold and downpipe). The result is a 7mm gap at the chassis rail. (see photos) I have not yet ascertained whether this has made the car any quieter but I think it will allow more flex in the engine on its  mountings rather than in the crankcase. It is a 3 bearing engine, so should give more compliance with the lore that a rigidly fixed engine is a bad thing.

Ian