Your vehicle’s air conditioning system requires high-pressure hoses to contain the refrigerant inside the system. Most modern cars have specialty lines that are vehicle specific, but many older cars just use a length of rubber hydraulic line. There is a rubber line that serves as a flex joint, this must be hydraulic hose. This is done through hard lines that connect to the radiator. Your automatic transmission is also a hydraulic system, and the fluid has to be cooled. These can be cut and secured with standard hose clamps. The one exception is the power steering return line hose, which is not under much pressure. These are more costly, but they last forever. The alternative to the thick rubber hose is a stainless steel line, which uses a teflon core tube encased in braided stainless steel. This makes the hose very stiff and hard to bend.
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Inside a rubber hydraulic line is braided steel to support the pressure of the fluid. Hydraulic hose must hold thousands of pounds of pressure, and requires special fittings to support it. This makes the hose very stiff and hard to flex or bend. These hoses are lined with braided steel between the layers. These hoses have special compressed fittings that secure to the hose to hold the high pressures. These hoses are user-replaceable, but unless you have special equipment, you can’t just make your own. Both require high-pressure hoses that can handle 2,000psi or more. There are several hydraulic systems in most cars, namely power steering and brakes. Often, these hoses will have a coiled spring inside to keep them from collapsing as the temperature changes. Radiator hoses is much larger in diameter and even thinner that heater hose. A radiator hose can collapse as the hot coolant cools, creating a vacuum. Some radiator hoses have large springs inside them to ensure they do not collapse. These hoses can be anywhere from 1-inch up to 3 inches in diameter, and are designed to resist collapsing. Radiator hoses are also lined with cords, but they are molded to shape. Note the thin wall and sparse cord, this is low-pressure stuff. Inside a heater hose you can see the edges of the cords. The most common sizes of heater hose are 5/8″ and 3/4″. Coolant hoses can be formed or loose spooled. All heater hoses are lined with nylon cords for durability. Coolant hose is not safe for fuel. The heavy duty hoses have extra protection from exterior abrasion and damage. There are different types of heater hose, from standard to heavy duty. Heater hose is generally ½, 5/8, and ¾-inch in diameter. They hoses are made the same, but the sizes are real difference. Coolant HoseĬoolant hoses come in two flavors – heater hose and radiator hose. This is NOT for use in EFI systems, EFI hose needs to support much higher pressures than standard fuel vapor hose. Of course higher pressure applications should have specialty fittings instead of hose clamps. Instead, use the rolled edge clamps designed for EFI applications. The clamps used on these hoses need to be rounded, a standard flat worm-drive clamp can cut into the hose. High Pressure Fuel Hoseĭesigned for the higher pressures of an EFI system, typically 30-100 psi.
#Encore 5 class suction hose full
A melted hose full of gas is a really bad day. Fuel vapor hose is labeled as such, if it does not say it is safe for fuel, DO NOT use it for fuel. Standard fuel line is capable of supporting gasoline, diesel, biodiesel, ethanol, and oil. This hose is typically good for pressures up to 25 psi, beyond that you need EFI hose. Most fuel line is made of black nitrile with nylon cords between the layers for strengths.
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Low pressure fuel systems, the kind used in vehicles with carburetors, see pressures between 6 and 10 psi. Just because it is liquid does not mean it isn’t causing wear, one look at the Grand Canyon will disprove that notion. The pressure of the fluid flowing through the hose, mixed with contaminants, is what wears out hoses.
#Encore 5 class suction hose cracked
While you may look for a hose that is cracked and brittle before replacing, the real culprit is on the inside. That is right your fuel will eat right through a vacuum line or heater hose, and your transmission fluid requires a specific type of hose as well. You probably already knew that, but what you may not know is that nearly every one of them is designed for a singular purpose and not interchangeable with other systems. Git your hoses heeere, fresh rubber hoses heeere! Your vehicle is full of fluids and vapors, and the main method of moving those fluids and vapors is through hoses.