After removing the entire set of bolts, remove the hood of the seal. The seal hood normally has six to ten mm bolts that you must take off. At the center of the crankshaft, there is a tiny piece, which is a pilot bearer. Here in the middle, you can see the crankshaft that comes into action when the engine is running. Generally, the rear main seal is pressed into the hood through bolts into the engine block. Before replacing the rear main seal, you will need to take the driveshaft off (Photo: Step 3: Remove the rear main seal hoodīy removing all the additional parts, you are almost done with the process of how to replace a rear main seal without removing the transmission. By doing this, you are able to reach the rear main seal easily. Use a wrench and a screwdriver to help you with removing the flex plate. It is a round metal disc with many holes in it. After that, you will need to find the flex plate. Before replacing the rear main seal, you will need to take the driveshaft off. The first step how to replace a rear main seal without removing the transmission is to remove the battery from the engine (Photo: Vestis Pluma) Step 2: Remove the driveshaft and flexplateĪ drive shaft, also called a propeller shaft, is a long rod that is designed to transmit torque from the output shaft of the transmission to the rear differential in a rear-wheel drive, four-wheel drive, or all-wheel drive vehicle. Therefore, you will feel more comfortable later. To generate more working space, you can also disengage the exhaust. Disconnect both negative and positive terminals that are connected to the circuit. Although it is not involved in removing the transmission safety first! You need to take the battery out. The first step of how to replace a rear main seal without removing the transmission is to remove the battery from the engine. Here are the steps of how to replace a rear main seal without removing the transmission Step 1: Detach the battery It is not less difficult than the other way, however, you can do it on your own. But you can do this rear main seal without removing the transmission. Usually, we will need to remove the transmission before reaching the rear main seal. It will sweep your bank account like a broom. Yes, you can ask a mechanic to fix it for you, but you will be surprised to know the rear main seal replacement cost. You will also need some special tools to execute this. How to Replace a Rear Main Seal without Removing The TransmissionĬhanging the rear main seal requires you to work hard for a long time. Because of dust and debris, plus the hot or cold weather, the rear main seal may face the threat of shortening its lifespan. Also, the weather conditions and the temperature condition inside the car can affect the seal. Second, the rear main seal can get into trouble because of bad installation from the producer or the mechanic. When it leads to the breakage of the crankshaft, the rear main seal will be affected. First, it could be the malfunction of the crankshaft. How to replace a rear main seal without removing the transmission (Photo: Chevy HHR Network) What Makes a Rear Main Seal to Be Ruined?īesides the rear main seal lifespan itself, there are some other factors that cause the rear main seal to go out. Then the oil will dry up and stay there will stains, and destroy the system. If the rear main seal has malfunctioned, the oil will leak fast. Therefore, the crankshaft can finish its work and let the engine coordinate well. It prevents the oil from leaking into the crankshaft. Just like its name, the rear main seal is installed at the rear of your car’s engine. If you want to know how to replace rear main seal, you will need to know what it actually is. But you may ask how to replace a rear main seal without removing the transmission? In this post, we will show you how to replace rear main seal without removing engine. Usually, you will need to remove the transmission to do this process. When it comes to rear main seal replacement, it takes a lot of time. The rear main seal can last for a long time, maybe for the rest of your car’s lifespan. Its main function in your car is to prevent the oil from leaking between the block and the crankshaft. A rear main seal is an important part of the engine system.
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