Water Pump Replacement
The number of steps to install awater pumpdiffers significantly from one vehicle model to another. This difference is due to the accessibility of the pump. On some models, for instance, the pump may sit on the engine side, and you only need to remove one or more components to gain access to it. On other models, you may need to remove the timing belt, which-in itself-requires a specific procedure. Regardless of your vehicle model, though, you still can install a water pump at home, if you prepare and plan for it.The chances of a successful installation will greatly increase if you have the repair orservice manualfor your particular vehicle make and model. Usually, you can find this manual in most auto parts stores. But you can order it on-line too. Also, the reference section of your local public library may have a copy of your service manual as well, and you may consult it there without spending money.Start listing all the items you'll need besides the water pump, gasket and sealant. For example, you have to drain the cooling system, so you'll need antifreeze and distilled water to refill the system.The manual will describe the step-by-step procedure to replace the water pump in your vehicle model. Also, it'll help you to make a list of the regular and special tools you'll need. Depending on your particular model, for example, you may need a special tool to remove the fan clutch hub, which might mount on the water pump.However, this doesn't mean you need to buy those special tools to complete your job. Some auto parts stores lend many special tools to attract business. So check with your local auto parts store before you buy any specific tools.Other times, the job will require you to make certain adjustments in preparation for the removal of the water pump. If your water pump sits behind the timing belt or chain, for instance, you'll probably need to set the number one cylinder piston toTop Dead Center(TDC). You can do this with the help of your service manual.Once you gain access to the pump and start removing the mounting bolts, it's a good idea to keep track of these bolts, organized in a separate container. Some pumps use several bolts that come in different lengths and types. So you need to know where each of these bolts goes during the installation process.After removing the old water pump, you'll need to clean all traces of gasket material and clean the engine-mating surface thoroughly. In most cases, all you'll need is a gasket scraper and some acetone to prepare the engine for the new pump. Before installing the new pump, though, make sure you have the correct sealant for the gasket.Then, when reinstalling the bolts, thread them finger tight first to prevent damage to the threads. Also, depending on your vehicle model, the pump bolts may require differenttorque. For this, you need a torque wrench. You can also rent this tool from your local auto parts store.As you can see, replacing or installing a new pump in your vehicle may require little or much preparation, specially if this is your first time doing this type of job. However, it is not impossible. The key part is preparation and planning. Know what exactly you need to do and what type of tools you'll need for the job. Become familiar with the procedure and understand each step as described in your service manual. Then, replace the pump. The time you invest preparing for this task will be time well spent. And it will prepare you for more complicated maintenance and repair jobs down the road.
