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Thread: na lower control arm bolt will not budge

  1. #1
    3,000 rpm - starting to feel the power JLBMX5's Avatar
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    na lower control arm bolt will not budge

    I am in process of replacing rear bearings on my Miata and the long lower control arm bolt that holds the bearing housing in place is not moving. The nut came off but bolt did not budge. If there is a method to remove this please tell me . I did not want to apply to much force and break anything so I will hold off and maybe someone who knows about this job can tell me what I'm doing wrong.

  2. #2
    3,000 rpm - starting to feel the power Rogue's Avatar
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    Its likely bent, so you will need to replace it.
    No easy way to remove a bent one.
    Keep working it with a big drift and a maul.

  3. #3
    3,000 rpm - starting to feel the power JLBMX5's Avatar
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    With a can of pb blaster. A breaker bar and a 3 ft pipe I was able to first move the bearing housing once I could move that just a little while soaking bolt in pb blaster I was able to break the rust loose. Soon as bolt was able to rotate I hit the nut end with a punch and it came right out. Both sides were seized but after figuring out the first one the second was done much faster. Tomorrow I'm getting bearings pressed out. The long bolts both were strait just a pain to remove.

  4. #4
    4,000 rpm - entering the fun zone wannafbody's Avatar
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    They can be real bitches. I had to take mine to my mechanic and have him torch it to get it to break free.

  5. #5
    Super Moderator atank's Avatar
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    ^^^Yes, been there done that (used a torch)^^^

  6. #6
    3,000 rpm - starting to feel the power JLBMX5's Avatar
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    Yea I read about torching them but risk damaging bushings so I opted not to use heat

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