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Thread: rear main seal

  1. #1

    Default rear main seal

    Does the motor have to come out of 79 pace car to fix rear main seal? Would a mechanic at a Ford Dealership be able to handle it? Seems like nobody is comfortable with this job.

  2. #2
    FEP Member 83GLCoupe's Avatar
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    I would think you can do it on a lift or in the driveway. You have to remove the trans and flywheel then you'll have access to the rear main. That's if you have a one piece rear main. Not sure on the '79
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  3. #3

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    1979 is two-piece
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    FEP Member 83GLCoupe's Avatar
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    Ah, that would explain why nobody wants to touch it. Sorry I didn't know. Ignore my post.
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  5. #5

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    One-piece wasn't until four months after the 1983 model year started.
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  6. #6
    FEP Senior Member BMW Rider's Avatar
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    It's not impossible to do with the engine in, but getting the pan off is a tight fit. The engine would need to be jacked up off the mounts as high as it can be for clearance. Dropping the transmission out will make it a lot easier to get the pan out too, but then you're getting close to the same time and work as pulling the engine. It was a lot easier with the older cars with the front sump as the pan was much easier to get out.

  7. #7

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    Thank you for the feedback!

  8. #8

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    How many hours roughly would this job take?

  9. #9

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    If I pulled the transmission and flywheel, would I still have to take off the oil pan?

  10. #10
    Moderator wraithracing's Avatar
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    Quote Originally Posted by radartek View Post
    If I pulled the transmission and flywheel, would I still have to take off the oil pan?
    Yes, because the 2 piece seal has to be installed with the rear main cap. The one piece seal can be installed and removed with the main cap in place and therefore with the oil pan on.
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  11. #11
    FEP Power Member plumkrazy's Avatar
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    this popped up today that it may help

    https://www.youtube.com/watch?v=WSy5hywk_ls
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  12. #12

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    Quote Originally Posted by wraithracing View Post
    Yes, because the 2 piece seal has to be installed with the rear main cap. The one piece seal can be installed and removed with the main cap in place and therefore with the oil pan on.
    wish I'd known this before I did my head repair!!
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