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re: 87 245 auto - loose bolt washers on 4th exhaust pipe/header 200 1987

posted by  Swedish Baklava on  Sat Apr 25 13:32 CST 2015
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last visit: Fri Oct 24 06:40 CST 2014
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Hi All,

As I am putting new plugs, I notice that both bolt washers are really loose. There is at least 1/16" play between the bolt & header. There is no leak, I think ... And bolts are tight. What should I do? I need this car running until this Oct.

I applied some PB blaster. Thank you as always.








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    re: 87 245 auto - loose bolt washers on 4th exhaust pipe/header 200 1987

    posted by  oldyellr on  Sat Apr 25 17:35 CST 2015
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    last visit: Fri Oct 24 14:28 CST 2014
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    Can you tighten the nut(s) after soaking with your favourite penetrant overnight? Either the nut or stud should turn. If not, then just forget about it until an exhaust gasket starts to leak and then snap off the stud replacing them. I had that happen a couple of years ago and just did without the missing stud and it hasn't leaked yet.
    --
    1992 745, >500k km








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      re: 87 245 auto - loose bolt washers on 4th exhaust pipe/header 200 1987

      posted by  Swedish Baklava on  Sun Apr 26 09:54 CST 2015
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      last visit: Fri Oct 24 06:40 CST 2014
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      Hi oldyeller

      I was able to loosen both nuts without breaking the studs. Now, how much force do I need to tighten these rusty nuts.

      I am using 3/8 ratchet with 6 point craftsman socket. For now, I pushed my thumb at the end of rachet. Thank you as always.







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        re: 87 245 auto - loose bolt washers on 4th exhaust pipe/header 200 1987

        posted by  oldyellr on  Sun Apr 26 10:09 CST 2015
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        last visit: Fri Oct 24 14:28 CST 2014
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        Sounds about right. The FAQ says: "Retorque to 10-20 ft lbs (14-27 Nm) for B230F/T, 15 ft-lb (20 Nm) for B234F, 7-11 ft lbs (10-15 Nm) for B280F." But it's hard to get in there with a torque wrench. First make sure the threads are clean and the nuts turn easily and use anti-seize on the studs.
        --
        1992 745, >500k km








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          re: 87 245 auto - loose bolt washers on 4th exhaust pipe/header 200 1987

          posted by  Swedish Baklava on  Sun Apr 26 17:00 CST 2015
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          last visit: Fri Oct 24 06:40 CST 2014
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          Hi oldyellr,

          I just went for a short test drive. Everything seems to be fine for now. Thank you for your help! Thank you and have a wonderful evening.







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