Riser Plate for Block

[Ian Williams]

A word of warning about shims, please ensure they are accurate and I personally would only use aluminium ones as they will conform better to the block and crankcase faces. Someone once brought a freshly rebuilt engine to me with a knock he could not diagnose. It turned out to be the piston skirt hitting the steel shim he had installed. The steel shims had been supplied by our local club, they are in my opinion too hard for the job and were not particularly accurately made, I have seen them fitted with two paper gaskets and the resulting oil leak is quite an achievement!