How To Remove Heater Hose Clamps
Machine Repair: Buying and Replacing Hose Clamps
When buying a new hose, don't forget to buy new hose clamps. They should be large enough to fit the outside diameter of the hose.
Clamps are so inexpensive that y'all should brand it a habit to replace them whenever you change a hose. If you're irresolute a hose that was secured with wire hose clamps or spiral-type clamps, supersede them with gear-type clamps that tin exist removed and replaced easily. Figure 12-7 shows all iii types of clamps. Here's how to deal with each kind:
- Wire hose clamps: I hate these clamps because they are relatively hard to deal with. If you need to change a hose that has them, utilise a pair of skid-joint pliers (run across Chapter 3) to pinch the wire ends together so that you can slip them off the hose, and then replace them with gear-type clamps.
- Spiral-type clamps: These clamps don't loosen hands, then they're often establish on radiator hoses and the like to go along them in place. Unscrew the spiral and remove it. Then slip your screwdriver under the clamp and loosen information technology. To avoid the hassle of reinserting the screw, supersede with gear-type clamps.
- Gear-type clamps: These clamps are my favorites. Only use a screwdriver to turn the spiral counterclockwise to loosen the clamp, slip the clamp over the hose, skid the end of the new hose in place, and plough the screw clockwise to tighten the clamp. Easy!
Tips: Information technology's impossible to tell someone in a volume how tight or loose a clench should be. If the clench is so tight that it appears to be cut into the hose, loosen it. If y'all can hear or see air or liquid escaping from the ends of the hose, the clamp should be tighter. Give the hose a tug to come across whether information technology's secure, and check it again after yous run the engine, to make certain that information technology isn't leaking.
Replacing Hoses
The bones process of changing a hose is quite simple (run into Figure 12-viii), but in that location are differences, depending on the type of hose you lot're replacing.
- If the hose is a vacuum hose, y'all'll find literally nil in it. Just loosen the clamps, remove the hose, slide the new clamps on the new hose, sideslip the ends of the hose over whatever they connect to, and tighten the clamps.
- Caution: If the hose is a fuel hose, have a professional supervene upon it. Fuel is not only highly combustible, merely information technology's also toxic. The danger, effort, and time necessary to clean up whatsoever spills and to dispose of everything properly at a hazardous waste heart just isn't worth trying to tackle this relatively cheap job yourself.
- If the hose contains liquid nether force per unit area, before removing the hose, be certain that the engine is shut off and the liquid has been allowed to cool so the pressure is released.
To prevent leaks, some manuals propose putting a h2o-resistant sealant on the ends of the fittings to which the hose connects. Because these sealants tend to brand the hoses difficult to remove when yous need to replace them over again, I advise that yous endeavor it without sealant showtime. In almost cases, if the hose is the right ane and the clamps are on tight enough, yous should be able to get by without sealant. If the hose leaks, yous can always become back and utilize the sealant every bit recommended.
- If the hose is a radiator or heater hose, to take hold of the coolant and water that will run out of the organisation, you'll demand a bucket or pan that holds at least ii gallons of liquid and will fit under the radiator bleed valve (chosen the petcock) that drains the radiator.
Caution: Never let coolant to drain onto the footing.
If you oasis't flushed your cooling system and replaced the coolant in the past year, exercise so at the same time you replace the hose. (See the "Flushing Your Organization and Changing Your Coolant" section for instructions.)
Car Smarts: Some newer engines take cooling systems that need to be bled. If your engine falls in this category, the cooling system contains special bleeder screws. If yous're non sure what blazon of system your vehicle has, bank check the possessor'southward transmission or ask a mechanic before you undertake this task. To do it properly, you demand to follow instructions in the owner'southward manual or a service manual for your vehicle.
Follow these steps to replace a radiator or heater hose:
- Make sure that the parking restriction is on and that the car is in Neutral or Park before yous start piece of work.
- Remove the force per unit area cap from the radiator or coolant reservoir, and identify a bucket or drain pan nether the radiator drain valve.
- Open up the drain valve, let the coolant to drain into the container, and so close the valve.
- Remove the clamps at both ends of the hose.
As I say in "Ownership and replacing hose clamps" before in this chapter, you're going to replace those clamps, so if yous tin can't remove them easily, cut them off. (If yous oasis't read that section, do so before going any farther.)
- Carefully twist the hose to remove information technology, and use the container to catch the liquid that drains from it.
Be gentle when removing the hose. If y'all're not careful, you coulddamage the radiator.
- Use whatsoever degreaser or just a damp clean rag to make clean the fittings that the new hose will attach to, and install new clamps over the hose (refer to Figure 12-viii).
- Install the new hose, attaching and clamping one stop securely in place earlier you lot tackle the other end.
Make sure that the hose won't interfere with any moving parts or bear on the engine when it's hot, and that the clamps are tight.
- If the coolant that you drained is fairly new and your container was clean, pour the liquid back into the organisation; otherwise, refill the organization with a 50/50 mix of fresh coolant and water.
If you're replacing the coolant, see "Keeping coolant out of the mouths of babes and pocket-size animals" for instructions on disposing of the erstwhile stuff safely.
- Start the engine and add more water and coolant equally the level in the radiator drops.
Don't fill the radiator to the top of the neck or the coolant reservoir up to the "MAX" line until the thermostat opens. When the upper hose is hot, the thermostat has opened. And then it's okay to peak off the radiator or the reservoir.
- Replace the pressure cap.
If your engine is the type that needs to be bled, do and so now, following the instructions in the owner'due south manual or service manual for your vehicle.
- Run the engine and double-check that the clamps are overnice and tight so that no liquid leaks out.
FromAuto Repair for Dummies, copyright © 2009 by Wiley Publishing, Inc., Indianapolis, Indiana. Used by system with John Wiley & Sons, Inc.
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