12-03-2019, 10:32 PM
Tight tappets can also give a similar problem. Bill Williams excellent book 'Austin Seven Specials' recommends 4 thou inlet and exhaust but I think this is a bit too tight. Doug Woodrow in the 'Austin Seven Manual' recommends 6 thou inlet and 7 thou exhaust. I set mine to 6 thou inlet and 8 thou exhaust just to be on the safe side.