How do you replace rear main seal on a 351 Ford windsor engine?

Answer 1

Your local auto parts store has aftermarket service manuals (Haynes is one publisher) for your specific make, model, and year of vehicle. It costs less than half an hour of a mechanic's time, and is invaluable for finding, testing, adjusting, and repairing things on your car, as well as critical specifications and information. It will also give you an idea of the complexity of the repair, as well as the skills and tools required for the job.

Answer 2

Jeep 4.0 instructions

Lift the car up and support it safely, Remove the oil pan, remove the rear most crank bearing cap. You will see the bottom half of the seal in the lower crank bearing cap and the upper half of the seal will be in the engine at the very rear. Very carefully push it out with a small metal object pressed against the metal wire in the upper half of the seal; be paranoid careful about scratching the crankshaft!! It will take a lot of patience and time (unless you get very lucky). Do not give in to temptation and loosen the other bearing caps to get the upper half of the seal out, it will come out. Once it starts to come out grab the end with needle nose pliers and pull it the rest of the way out.


Apply grease to your new seal (which is the new double lip version if you don't want to be doing this again soon) and place the correct end facing forward as indicated in the instructions that came with the seal, then slowly work the upper half of the seal into the upper bearing race exactly as the old one came out. Grease and Place the lower seal in the crank bearing cap, apply a small dot of gasket sealant to each end of the seal where it mates to the upper seal. Ensure the bearing is in the cap correctly with the notch matching to the upper bearing (very important) and bolt the cap back on being careful to line up the seal ends. Insert the bolts and Torque the bolts to 88 foot pounds, you must torque the cap bolts correctly or you risk spinning a bearing and hating life.


Clean any sludge out of the oil pan and replace it using a new seal. Again torque the oil pan bolts correctly then lower the vehicle.


This is a fairly straight forward job, but it must be done correctly or the engine will leak worse than when you started or you will spin a bearing and trash your engine.

Answer 3

You can replace the rear main seal in a transfer case, on a 1997 Ford Explorer, by removing the transfer case cover. Remove the seal, using a seal puller. Reverse the process to install the new seal.

Answer 4

It is easiest to remove the engine. Get a manual on your car to do the job correctly.

Answer 5

The question you ask is too involved for a proper answer. You need to go to a car parts store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.

Answer 6

The oil pan must be removed along with the rear main bearing cap. The rear main seal is loacated under the rear main bearing cap.