Tappet Adjustment process

[Alan]

When an engine is freshly built the rings are sometimes too dry and not bedded well enough for the engine to develop the vacuum needed to breathe properly. Perhaps your dry plugs are a symptom of this. Towing increases the cranking speed so the engine does draw in enough fuel. Before now, I’ve had my Ulster towed at up to 30mph to get it to fire. After that it starts first pull of the handle. (It’s a racing car, it doesn’t have an electric starter.