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Exhaust to tranny support bracket question (1990 740) 700

posted by  garlandw on  Wed Dec 22 09:49 CST 2004
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last visit: Wed Sep 10 08:58 CST 2014
[RELATED]

I was looking around underneath the car (1990 745 16V, 4sp+od) the other day and spied the exhaust support bracket at the transmission. I noticed that it was a metal to metal contact, ie, the exhaust is bolted to the tranny in a fixed relation; no flex. Makes sense, I guess, from a support point of view but wouldn't this transmit exhaust noise direct to the tranny which is separated from the car's interior by not very much (what, a rubber boot?). I wonder if a rubber shim placed between the bracket and tranny would make things quieter without any significant loss of support?

Or am I missing something?

Bill
--
Volvo Info Site 1990 745GLE 16valve








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    Exhaust to tranny support bracket question (1990 740) 700

    posted by  someone claiming to be bob on  Wed Dec 22 11:03 CST 2004 [RELATED]

    The bracket you refer to was actually installed to reduce noise and vibration from the exaust system. Without it, the pipe can really get to strumming like a banjo.








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      Exhaust to tranny support bracket question (1990 740) 700

      posted by  garlandw on  Wed Dec 22 11:55 CST 2004
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      Interesting, thanks. Do you think a rubber shim would further reduce the noise transmission without compromising the anti-banjo effect? Seems to me it would.

      Bill
      --
      Volvo Info Site 1990 745GLE 16valve








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        Exhaust to tranny support bracket question (1990 740) 700

        uid 6573's pic
        posted by  javalion on  Wed Dec 22 16:13 CST 2004
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        last visit: Wed Jul 23 09:57 CST 2014
        [RELATED]

        It may not be a bad design. The tranny is solidly joined to the engine and the “mass” is isolated from the body by the two engine mounts and the tranny mount. Ideally, there should be a hanger between the bracket and the pipe but it is kind of tight in there.
        --
        Tom F. Couple of Volvos Mods, RainX & cup holders.







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