exhaust manifold for 1300 marina based roadster

[victorday_31]

unfortunately, whilst changing clutch assembly, I have cracked the phlange on the down pipe of the manifold, not repairable sadly.
it is a 3 branch manifold, where can I source a replacement suitable for this engine, or has anyone one for sale?

Thanks,
Vic Day

[meverett]

Re: exhaust manifold for 1300 marina based roadster

There have been a few on eBay recently.
Is it the 3 into 2 or 3 into 1?

[meverett]

Re: exhaust manifold for 1300 marina based roadster

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F253774637306

[meverett]

Re: exhaust manifold for 1300 marina based roadster

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F253812986254

Does yours have the inlet manifold as well? If so it also depends on which carb you have.

[victorday_31]

Re: exhaust manifold for 1300 marina based roadster

no 3 into 1 and 1.5inch down pipe

[Ye Ol Ripper]

Re: exhaust manifold for 1300 marina based roadster

Cast Iron can be successfully welded but it needs to be heated up whilst welding. Obviously the cost to repair may exceed sourcing a s/hand replacement.

If your looking for a power improvement the manifold that worked really well with the A series was made by Maniflow in Salisbury and is known as a LCB Manifold . Accompanied by a RC40 back box which will yield some useful power gains.

The late A series inlet and exhaust manifold set up was also an improvement over the earlier manifolds yielding an improvement of iirc 3-5BHP .

an example of the exhaust manifold is : https://www.ebay.co.uk/itm/Classic-m...MAAOSwSI5bcIdm

So you will then require the twin downpipe front section of the exhaust.

Or both manifolds:

https://www.ebay.co.uk/itm/AUSTIN-MK1-MK2-METRO-998cc-1275cc-CAST-TWIN-OUTLET-INLET-EXHAUST-MANIFOLD-GWO/123312001585?hash=item1cb5f7d231:g:pC4AAOSw9NdXqnAP

[victorday_31]

Re: exhaust manifold for 1300 marina based roadster

thankyou for info .spotted on ebay manifold for a sprite/midget 1275 it looks ok but concerned down pipe dia mine is 1.5 inches