What is the valve clearance for the Chaochai 6102 engine?
1 Answers
Diesel engine valve clearance is 0.25-0.30 for intake valves and 0.30-0.35 for exhaust valves. Most valve clearance parameters fall between 0.15~0.4mm, with the optimal adjustment range being 0.2~0.35mm. Effects of excessive clearance: Causes metallic knocking noises. Excessive engine valve clearance will create metallic knocking sounds and may leave marks on components like rocker arms and valve stems. Do not adjust the clearance too small just to eliminate noise, as this can accelerate wear on rocker arms and camshafts, potentially leading to starting difficulties and unstable idle. Effects of insufficient clearance: Insufficient engine valve clearance will cause the valves to not seal properly when the engine is hot, resulting in gas leakage. This leads to reduced engine power and may even burn out the valves.