You may have compression on any cylinder where the valves happen to be closed, but you will not have compression on all cylinders. 1991 Sable does not have a 305 engine.
It varies from one engine to the next but, what you want to see is that all the cylinders compression readings are within 10% of each other.
standard compression is 178psi min is 142 psi. +/- 15 psi between cylinders. That's for the 2.2 engine.
The compression pressure for a 1991 Toyota Tercel typically ranges between 170 to 200 pounds per square inch (psi) for a healthy engine. It's important to check the manufacturer's specifications for your specific engine type, as variations may exist. If the compression readings are significantly lower than this range, it may indicate engine wear or other issues. Always perform a compression test when the engine is at operating temperature and all spark plugs are removed for accurate results.
The compression for a 1991 Yamaha Bravo snowmobile should typically be around 120 to 130 psi (pounds per square inch) for each cylinder. It's essential to check the specific service manual for your model, as compression can vary slightly based on the engine's condition and any modifications. If the compression is significantly lower than this range, it may indicate wear or damage that needs to be addressed. Regular maintenance can help maintain optimal compression levels.
100-125psi
The compression ratio for a 1991 Suzuki Sidekick JX with a 1.6-liter engine is approximately 9.5:1. This engine is known for its efficiency and reliability, making it a popular choice for compact SUVs of its time. If you need more specific details about engine performance or tuning, refer to the vehicle's service manual.
The compression specification for the 1991 Metro typically refers to the engine's compression ratio, which is approximately 9.0:1 for the standard models. This ratio indicates the engine's efficiency and power output. However, it's important to verify specific details based on the engine type, as there may be variations depending on the model and market.
My 1991 Ford Mustang 5.0 liter V8 ( LX ) had a compression ratio of ( 9.0 to 1 from the factory ) ( 8th " character of VIN was an " E " )
The lowest reading cylinder should not be less than 70% of the highest and no cylinder reading should be less than 689 kPa (100 psi). Perform compression test with engine at normal operating temperature, spark plugs removed and throttle wide open
HI, Compression should be 128 to 156 psi, with no more than 14 psi. difference between cylinders.
What is the cylinder compression on a 1991 Ford Ranger with a 2.9?