What does the rear main seal do in a car?
The rear main seal allows the crankshaft to exit the engine case so it can bolt to the flywheel or flex plate and transfer its energy into the transmission. The rear main seal also holds the engine oil back and keeps it inside your engine where it can keep your main bearings lubricated.
How to tell if your rear main seal is leaking?
One rear main seal leak symptoms is oil stains. Source: Shutterstock How to tell if rear main seal is leaking? The main symptom of a rear main seal leak is when your car starts leaving black stains on your driveway or parking lot.
Do you need a rear main seal leak stop additive?
Cheap Fix Test Instead Of Spending $1,200 Dollars On Rear Main Seal Repairs At Your Mechanic! Wondering if you need a rear main seal leak stop additive?
How to replace a rear main seal without removing the hood?
The flex plate is the last layer that covers rear main seal replacement. By removing the flex plates you will be able to unbolt the seal from the rear end. 3. Remove the Rear Main Seal Hood Now that you have taken away all the supplementary parts, it is time to remove the rear main seal.
Where is the rear main seal in a car?
The biggest contributor to the cost of replacing a rear main seal is the location of the seal and therefore the location of the leak. The rear main seal in your vehicle is at the back of the engine and seals the crankshaft as it exits the engine.
What causes a leak in the rear main seal?
Some seals and gasket in your engine never cause large leaks because of the design or because they don’t seal a pressurized portion of the engine. The rear main seal is subject to both high oil pressure since it is right by the rear main bearing as well as the spinning crankshaft which is constantly wearing on the inside of the seal.
The flex plate is the last layer that covers rear main seal replacement. By removing the flex plates you will be able to unbolt the seal from the rear end. 3. Remove the Rear Main Seal Hood Now that you have taken away all the supplementary parts, it is time to remove the rear main seal.
How long does it take to replace a rear main seal?
However, the process to get to the rear main seal to replace it often requires removal of the entire engine and transmission from the vehicle, a job that can only be done by very skilled mechanics and even then can take 6-10 hours!