Quick Answer

Quick Answer: How do you change the rear main seal on a Cummins?

Cummins 5.9 24v Rear Main Seal Leak Replacement

Can you replace a rear main seal without removing the motor?

It is certainly possible to replace your rear main seal yourself, without removing the transmission, if you have some knowledge of cars, understand your engine, and have the tools. It is usually professional to perform this type of procedure.

How do you change a rear main seal without removing the transmission?

Usually, we will need to remove the transmission before reaching to the rear main seal….How to Replace a Rear Main Seal without Removing The Transmission

  1. Step 1: Detach the Battery.
  2. Step 2: Remove Driveshaft And Flexplate.
  3. Step 3: Remove the Rear Main Seal Hood.
  4. Step 4: Remove The Crankshaft Seal.

How much should it cost to replace a rear main seal?

Even though the parts won’t cost more than $100, the cost of labor is what makes the rear main seal repair very expensive. Mechanics will charge between $500 and $1800 for the labor alone, with the average total cost of repair being $1100.

Does Rear Main Seal Stop Leak work?

Yes. Even though it is specially designed to seal rear main leaks, it also works better than a conventional stop leak on all other engine oil leaks. This includes the timing cover seal, cam seals, O-rings and other seals and gaskets.

How do you know if your rear main seal is leaking?

The main symptom of a rear seal leak is when your car starts leaking engine oil at a faster rate. If your vehicle has started leaving black puddles on your driveway or parking lot, something is definitely wrong with the situation underneath the vehicle.

How many hours does it take to replace a rear main seal?

Replacing 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!

How do I stop my rear main seal from leaking?

It’s important to seal the rear main seal leak in your vehicle as soon as possible if it has been discovered. BlueDevil Rear Main Sealer can be found at your local auto parts store. BlueDevil Rear Main Sealer will stop the leak of your rear main seal as you drive your vehicle by adding it to your engine oil.

Does Blue Devil work rear main seal?

Description. BlueDevil Rear Main Sealer permanently stops rear main seal leaks. Just add to the engine oil to restore and seal gaskets. BlueDevil Rear Main Sealer is a great repair for timing cover leaks.

Does a rear main seal leak oil or transmission fluid?

A rear main seal leak will cause oil to drip from the bottom of the bellhousing at the front of the transmission. If you have drips coming from in front of the bellhousing, locate those leaks, stop them and clean the engine.

Is it hard to replace a rear main seal?

Its’ Hard. Replacing a rear main seal is time consuming, requires special knowledge of your vehicle and the use of special tools if you are going to do it correctly and without placing you or your vehicle in danger.

Can transmission fluid leak from rear main seal?

Seals and Other Gaskets

There are various seals and gaskets throughout the transmission system. This might include the rear main engine seal and the front input seal. The rubber may deteriorate or something could come out of alignment and cause a transmission fluid leak.

What causes a rear main seal to fail?

Excessive heat, old age, high mileage, infrequent use, and worn bearings can also be factors contributing to rear main seal failure.

How long do rear main seals last?

How Often Should A Rear Main Seal Be Replaced? Every 50,000 miles are vital to ensuring that the seals within your car are properly inspected.

Can you use BlueDevil twice?

Yes. You can use the blue devil head gasket sealer more than once. This product does not contain petroleum distillates, so you might use it more than once if a leak occurs after the last time you used it. You only need to follow the directions to the letter when applying it.

Is Blue Devil Oil Stop Leak safe?

BlueDevil Oil Stop Leak seals engine oil leaks permanently. It is non-clogging and will not harm your engine. BlueDevil is safe and easy to use and is compatible in gasoline or diesel engines.

How long does it take for BlueDevil rear main seal to work?

How Long Does It Take For Bluedevil Rear Main Sealer Work? You should expect it to work within 30-45 days.

What is the difference between BlueDevil Oil Stop Leak and rear main sealer?

Answer: According to a Blue Devil representative, the Oil Stop Leak is simply more concentrated than their Rear Main Seal product and will stop all types of leaks including rear main seals. They added, that it is not necessary nor necessarily beneficial to add Rear Main Seal in conjunction with the Oil Stop Leak.

Is BlueDevil Rear Main Sealer permanent?

BlueDevil Rear Main Sealer from BlueDevil Products is a guaranteed permanent fix for leaks. Its special chemistry restores seals to their original size and flexibility.

Does rislone Rear Main seal Repair work?

Will Rislone Rear Main Seal Repair work on other oil leaks? Yes. Even though it is specially designed to seal rear main leaks, it also works better than a conventional stop leak on all other engine oil leaks. This includes the timing cover seal, cam seals, O-rings and other seals and gaskets.

How long does it take for Lucas Oil Stop leak to work?

You can expect it to take 30-45 days to work.