What is the general cylinder pressure for cars?
1 Answers
Generally, the cylinder pressure of a car should not be less than seven pressures to be considered within the normal range. The solutions for insufficient cylinder pressure in cars are: 1. First, open the engine and remove the cylinder head to check if the valves are not sealing tightly or if the valve oil seals are faulty, then replace the valve oil seals. 2. If the cylinder friction gap is too large and the wear is within repairable limits, the cylinder liner can be inlaid, followed by cylinder boring. 3. If there is piston ring blow-by, new pistons and piston rings can be replaced. If the issue of insufficient cylinder pressure persists, it is advisable to seek repair at a 4S shop promptly. Additional diagnostic methods for insufficient cylinder pressure include: 1. Unstable engine operation, abnormal noises from the exhaust pipe, or backfiring in the carburetor may indicate insufficient cylinder pressure. 2. Difficulty in cold starts, no significant change in climbing ability, and the ability to manually turn the engine past the top dead center of the piston compression stroke without decompression may suggest insufficient cylinder pressure. 3. Increased oil consumption, exhaust gases coming from the oil filler opening, or even oil spraying out in severe cases may indicate insufficient cylinder pressure. 4. Water droplets exiting the exhaust pipe, carburetor backfiring, and water leakage in or out of the crankcase may suggest insufficient cylinder pressure.
