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Can you identify this mystery bolt from a Volvo 240 engine bay? 200

I am looking for help identifying the mystery bolt pictured. I found it in my plastic engine belly pan - 1991 Volvo 240.

https://www.pinterest.com/volvo240things/volvo-240/











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    Can you identify this mystery bolt from a Volvo 240 engine bay? 200

    A/C adjuster bolt.

    I've lost mine before. I think it goes easily unnoticed because you can't really see it easily. Maybe you forgot to tighten that bolt during your last belt change?

    Travis








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      Can you identify this mystery bolt from a Volvo 240 engine bay? 200

      yes, it's the back bolt on the rear a/c support bracket. good thing to catch it, it's easier to tighten when the bolt is square like this. notice the smooth panhead. you will need extensions on your ratchet with an universal joint and the easiest to tighten from underneath the car, but get the nut on from above. i believe it takes a 13 mm nut.

      it will make your a/c compressor to get out of line if this bolt is loose or off.

      an easy oversight for shops to forget to put on or to torque it properly.

      regards,
      byron golden
      86 245
      92 245
      94 940








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    So that's where it went! 200

    Never mind, you can keep it. I found a replacement.

    Sometimes, when you lose things, they show up in the strangest places. And no, I'm not getting forgetful.
    --
    1980 245 Canadian B21A with SU carb, M46 trans, 3:31 dif, in Brampton, Ont.








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    Can you identify this mystery bolt from a Volvo 240 engine bay? 200

    Lock bolt for the alternator tensioner slide thingy.








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      Can you identify this mystery bolt from a Volvo 240 engine bay? 200 1991

      Looks too short for the alternator. But I don't have a better guess. Power steering pulley adjuster? Hope the OP lets us know.
      --
      Art Benstein near Baltimore

      Plug in your most re-volt-ing puns here...








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        Can you identify this mystery bolt from a Volvo 240 engine bay? 200 1991

        There's one on the A/C compressor as well, isn't there? The bracket is a lot thinner, so the length would be correct for that application.








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        Can you identify this mystery bolt from a Volvo 240 engine bay? 200 1991

        The square cross section above the threading tells me you should have found a nut as well.. The square acts as the counterhold when tightening a nut down.

        I don't recall anything like that in the engine bay..perhaps the battery terminal? They usually have a square nut/bolt so you don't need two wrenches for loosening.

        There should certainly be a prize for anyone who can identify that bolt from memory.







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