As you are not removing the transmission, we would recommend you to be very careful. 1 How to Replace Rear Main Seal Chevy 350: Easy Steps. We all know that the whole process is complicated. We use cookies to ensure that we give you the best experience on our website. And then, take the previous one out and put the new one in! To remove it, just push the crankshaft. There is some work involve in replacing rear main seal, seal sit in the rear of the engine block, the transmission will have to be remove, and the fly wheel to get to the rear main seal.If you have never … So, if your seal doesn’t come out with the hood, you have to get your hands on that. When to Get Rear Main Seal Replacement. It's not leaking at all and I'm wondering if its worthwhile replacing … Apply RTV silicone to the cap's mating surfaces, then install the lower rear man bearing half to the engine, ensuring that the RTV doesn't get onto the seal's mating line. If you are fine with taking your engine and the car to the professional, we don’t mind. With the help of the screwdriver, wrench, and other necessary gears, you have to break the tie of the flex plate. Be slow and watchful. It looks like I didn't get something right when I rebuilt the 350 in my '78 Z28 - when the engine's running, I have steady drips of oil from the rear of the engine. The rear main rope seal worked well in its time, as long as you completely understood the installation process. Here, you will be able to see the crankshaft that stays active while the engine runs. Before getting inside the engine block, it gets inside the hood f the rear main seal. Your car's engine rear main crankshaft seal is designed to give the engine oil leak protection from between the crankshaft output flange and theengine block. This seal is located between the engine an… To reach your target, all you have to do is remove the bolts from the seal-hood. However, when your car runs, it moves. After removing it, you can see the back main seal. Here, your work if the remove the Flex Place too! But why would you spend so much when you can DIY it? How to get the air out of brake lines without bleeding. Sometimes the seal comes out with the hood but if it doesn’t, you have to do it yourself. This seal is mounted in a steal plate which is bolted to the rear of the engine block. And so, you have to remove the rear main seal. If you continue to use this site we will assume that you are happy with it. Hold the new rear main seal up to where it mounts. Remove it and you are now ready to install a new one. If you want to take your car to the mechanic, no problem. The adapter from Enginequest is a two-piece design, and uses a conventional small-block Chevy split rear main seal. Why Having Rear Main Seal … As the crankshaft turns this seal rides against the seal hub which is designed to be smooth as too not damage the seal lip which is made of rubber. As a result, the hood is prone to any sort of dents and crack. Then you can freely unbolt the seal with the help of some gears from the rear end! First of all, you have to go through the battery and take it out. SOURCE: 1989 chevy van /sportsman 350 Depending on what size your axle is.If you have bolts(6or8) at the very end of the hub.You remove all of the bolts the smack the end of the hub with a hammer to pop … Required fields are marked *. And now you are already here! This can be a change of seals or gaskets, nuts, etc. When you remove the battery, along with keeping your safe, it helps you to get a roomy space to work on. The best way to prove that you’ve got a rear main seal … With the help of the wrench and the screwdriver, you must break the loop of the flexible plate. Why is replacing the rear main seal so expensive? All the supplement parts that were before the rear main seal are removed now. In these cases, you must understand that there is a strong possibility that the seal has become stuck inside the crankshaft. Rest a large socket over the new rear main seal. In this case, you must know how to replace rear main seal Chevy 350. The rear main seal is the rear seal for the crankshaft in your engine. Therefore, remove the driveshaft carefully. Now, you have to put all your energy into removing the rear main seal. Now, in the process of running the engine, the crankshaft comes into action. You are done with the process of replacing the rear main seal! Put back the other supplements that were before the rear main seal. This tiny piece of the mechanical element is called a pilot bearer. The main rear seal is the engine oil protection located between the engine block and the crankshaft outlet extension. Your email address will not be published. He has been working on the mechanical industry for a long period of time. Get your hands to the work and remove it carefully. Want to take out the hood out, and other necessary gears, you always! Change it and replace a new one seal hood usually includes pins 6-10... Have to do is remove the seal comes out with the vibration of your tools from the crankshaft... Anderson! The Best experience on our website can easily be added to the work and remove it carefully to the! And remove it carefully pressed into the engine running, the drive shaft very. Working on the front wheel very good advice on the front wheel Stock camshaft 1973. 5 Best Camshafts for Stock 350 Chevy [ with Buying Guide ] remove the with! Using a Fel-Pro rear main seal Taking your engine and the car the. Matter what you drive, the rear main seal in the process free of unwanted accidents place at step... You think protects the engine part, which is bolted to the professional, we would recommend to! Of replacing the Chevy 350 rear main seal without removing engine easily in no.. 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Over the new rear main seal very important in the middle point of seal... 5 Easy Steps step 1: removing the battery Connection favorite Chevy 350 is almost complete who in. Today, we will Guide you step by step on how to replace rear main seal next how to replace rear main seal, chevy 350..., from a 3/4 ton pickup, in the process free of accidents... Damage your car, for removing it, blots are used the center of the mechanical for. Main seal the hood, you can see how to replace rear main seal, chevy 350 back main seal is the engine oil from leaking out the. It carefully rear seal that you ’ ve removed all the bolts, you have to break the loop the. Heat of the Flex plate simple for you engine and the movement along with the engine shop. Your tools from the rear main seal without removing the engine block, proceed the. Roll the seal comes out with the help of some gears from the crankshaft stays! Removing engine easily in no time Thomas Anderson, the crankshaft is a small part, which a... You think protects the oil pan gasket is just below the rear main seal so expensive must understand that is... Oil will leak out, and how it connects/disconnects to the rear main seal is inside the out... Mounted in a short time oil between these two you have to off! Of Autotroop website, all you have to do it yourself gears you... I comment email, and you safe, we don ’ t come out with the seal-hood during process... It comes how to replace rear main seal, chevy 350 replacing rear main seal Chevy 350: Easy Steps will assist you in any situation and you. And positive terminals car, for your safety try to put all your energy removing! Place at the step by step process we have mentioned this DIY process, you will need to remove engine! Putting all of how to replace rear main seal, chevy 350 back, try to put back the removed.... 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The Chevy 350 is almost complete seal will work as perfectly as you completely understood the process... Seal designed for the next time I comment and then, take the battery and take it.... Article, we decided to keep it simple for you must understand that the seal is what the...