Bleed air from a hydraulic floor jack by extending the piston, opening the pressure release valve, removing the oil fill port, replacing the port, and repeating until no more air escapes from the oil fill valve. Bleed hydraulic jacks regularly to keep the jack in proper working condition.Know More
Insert the handle into the jack, and pump it until the piston fully extends. Do not proceed until you are certain it is at its maximum length.
The pressure release valve is located near the base of the jack. It is the valve you open to retract the piston. Insert a flathead screwdriver into the head of the valve, and turn counterclockwise one-half turn. The piston should automatically retract at this time.
The oil fill port is on the side of the jack, but similar in looks to check valves. Check the owner's manual to determine the correct screw to loosen. Do not loosen the check valves. Insert a flathead screwdriver into the slot, turn it counterclockwise, and remove the plug. You should hear air hissing as you remove the plug. Replace the plug.
Repeat the process of extending and retracting the piston and opening the port until you no longer hear air hissing out of the opening when you release it.
There primary considerations when selecting the right hydraulic oil are the viscosity and hydraulic oil type requirements. These are determined by factors such as the type of pump in the hydraulic system, the operating temperature and the operating pressure of the system.Full Answer >
Crankcase pressure occurs when a vehicle's breather tube is obstructed, the pistons or blower oil seals are worn or defective, the piston crown is cracked, the gaskets are defective or the vehicle has excessive exhaust back pressure. Recommended crankcase pressure amounts vary depending on the type of vehicle and engine.Full Answer >
Blue or gray smoke coming from an exhaust pipe indicates either an oil leak or piston wear. Typically, oil leaks pass the seals and get into the engine cylinder. From there, they come into contact with gasoline and burns, producing blue smoke. When oil leaks into the cylinder, it produces rough idle, misfires and could affect the spark plugs, according to CarsDirect.Full Answer >
A non-interference engine is one that has enough camshaft lift to open the valve and allow the charge of air and fuel into the combustion chamber but does not open so far into the chamber that a broken timing chain or belt would cause the valve and moving piston to collide when the camshaft stops. Interference refers to the relationship between the valves and pistons. A non-interference engine with a single camshaft has no interference between pistons and valves.Full Answer >