Exhaust gaskets | FerrariChat

Exhaust gaskets

Discussion in '348/355' started by SeattleM5, Jan 25, 2019.

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  1. SeattleM5

    SeattleM5 Formula 3
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    Ettore Palazzo
    #1 SeattleM5, Jan 25, 2019
    Last edited: Jan 25, 2019
    Has anyone tried these newer style exhaust gaskets (Ferrari part# 154984)? I'm finally ready to put the engine back in the car but before doing so I decided to smoke test the intake/exhaust to ensure no leaks. Intakes looked great but the exhaust unions where these gaskets live (exhaust manifold-cat, exhaust manifold-Y pipe) are leaking terribly. The exhaust hardware is on nice and tight but not over torqued (bolts are tightened down to the internal spacer).

    The gaskets aren't solid, rather, they are a compressed metal mesh. Even though the mesh is very tight it is still porous and I can't see how these things will ever completely seal in exhaust gases. Of course the exhaust is cold, I wonder if they seal up after heat cycling?

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  2. F355Bob

    F355Bob Formula 3

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    #2 F355Bob, Jan 25, 2019
    Mine leaked also and edges can get bent if not carefull. No as good as old style
     
  3. taz355

    taz355 F1 Veteran
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    #3 taz355, Jan 25, 2019
    On another note nice heat shields on the axles
     
  4. SeattleM5

    SeattleM5 Formula 3
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    #4 SeattleM5, Jan 26, 2019
    Yep, those are the Goth heat shields that many are familiar with. In those photos you can see how close the inner CV joint/boot comes to the exhaust. I installed those after changing out the passenger side CV boot which had completely disintegrated.

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  5. SoCal1

    SoCal1 F1 Veteran
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    #5 SoCal1, Jan 26, 2019
    Mahle makes the old style
    I believe it's the same as the ford 289 motor gaskets, Check to confirm
    Have a case of them somewhere
     
  6. JLF

    JLF Formula 3
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    #6 JLF, Jan 26, 2019
    I put them on my mondial t coupe with new Tubi and I smell a lot of exhaust if I roll the windows down. Didn’t notice it when I had the original muffler on.
     
  7. SoCal1

    SoCal1 F1 Veteran
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    #7 SoCal1, Jan 26, 2019
    Last edited: Jan 26, 2019
    EDIT

    I'm Sorry the gaskets I have were ina mahle box HOWEVER

    They are Victor Rienz F7197 also has 60155 on the box

    F7197 is the Mahle part # also

    About $5


    Fits Exhaust Pipe Packing Ring Ford-Pass;Merc:351W,390,428(68-74)(Donut), ID 2.00", OD 2.75"

    I guess I used it on the 428 motor
     
  8. SeattleM5

    SeattleM5 Formula 3
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    #8 SeattleM5, Jan 26, 2019
    Thanks! I'm definitely going to swap these 'new' metal mesh versions out.

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  9. SoCal1

    SoCal1 F1 Veteran
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    #9 SoCal1, Jan 26, 2019

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