The contact surfaces between an SU carburettor and its manifold mounting can be easily damaged as a recent Discussion Forum topic identified. Following on from this, Joe Rayner has written a short, well illustrated article which provides a clear pathway to resolving such an issue. Entitled SU Flange Repair, it can be found in the Member’s ‘Technical Bits’ area of the site under the sub-menu ‘Carburettors & Fuel’.