Stainless steel or plain exhaust clamps

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Dino soar, Sep 24, 2019.

  1. Dino soar

    Dino soar Road Train Member

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    I need to buy new clamps for my exhaust. Will the stainless clamps last longer than the plain clamps?

    I'm sure that the stainless will look nicer where you can see them, but I'm mainly concerned about longevity and preventing leaks.

    Especially the one that's underneath the truck for the dual exhaust. It's difficult to get to it so I'd rather just put whatever will last, if there is a difference.
     
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  3. boneebone

    boneebone Road Train Member

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    Always pay extra for stainless.

    Pay once, cry once.
     
  4. stillwurkin

    stillwurkin Road Train Member

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    Stainless will last longer for sure. But steel usually lasts as long as the exhaust pipes. Especially in the north where they salt and brine the roads. Heard this saying so i have to pass it on. "The bitterness of poor quality is long remembered, after the sweetness of low price is forgotten ".
     
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  5. Working2party

    Working2party Medium Load Member

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    Yes, stainless last longer. This goes for any flex piping also.

    Also pay the extra for the formed (stepped) “sealed” type, if you don’t want that little black line coming out of it.
     
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  6. stayinback

    stayinback Road Train Member

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    Does anyone make a clamp(stepped or standard) that isnt so paper thin?
     
  7. Working2party

    Working2party Medium Load Member

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    Part of the reason they are paper thin is so they will stretch and seal the piping with metal to metal contact. If you get them to thick they can collapse the pipe your clamping.

    The sealed versions of the clamps really only have a little piece of high temp cloth that seals the seam of the clamp where it can’t stretch. It has a waxy type feel so there could be a high temp wax, anti-seize, or something infused.
     
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  8. Dino soar

    Dino soar Road Train Member

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    One place that I called for the clamps offered plain clamps or a stainless clamp.

    Freightliner only offered me stainless clamps but it was at the right price. So I got all new stuff except for the y-pipe and the Stacks themselves.

    I have heard of people putting some type of sealant like RTV, I assume on the top part where the bolts are?

    Is that really necessary or if you just clamp them together will they not leak?

    If you did use sealant, what would you use and where would you apply it?
     
  9. Working2party

    Working2party Medium Load Member

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    Probably anything high temp. Apply it to and around the seam.
    It doesn’t have to plug much of a hole. It’s just that little bit extra.
     
  10. Rideandrepair

    Rideandrepair Road Train Member

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    They make an exhaust paste. Makes slipping joints together easy, and supposed to seal up minor leaks. I’ve seen them use it at Peterbilt once. Looked like black grease. I’ve noticed it when taking apart old exhaust on my last Truck. All dried up, crumbled, to pieces. I’ve never used it, but think it’s not a bad idea. Main thing is use full round SS clamps, cheap ones break, when torqued. Always leak.
     
  11. Rideandrepair

    Rideandrepair Road Train Member

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    D2C420E8-0655-427A-A89E-B67D4510A3FC.png New s pipe, no more broken flex pipes. Less movement. Note clamp
     
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