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  1. #1
    John Colucci's Avatar
    John Colucci Guest

    Default How do I know when my risers a

    How do I know when my risers are bad? I am getting alot of air bubbles out of my starboard exhaust on a block only fresh water cooled 318 chrysler. Thankyou John

  2. #2
    Join Date
    Sep 2004
    Virginia Beach, VA, USA

    Default "Is that raw water cooled or c

    "Is that raw water cooled or closed cooling system?
    Even with a closed cooling system, the risers (elbows) are cooled by raw water. The water gets entrained with the exhaust to help cool it as it passes through the rubber boots."

  3. #3
    Join Date
    Nov 2002
    Mullica Hill, New Jersey, United States

    Default "John, If you don't kno


    If you don't know if they are bad and don't know when they were last replaced, it's time to take a look. Knowing that, being a 318 Chrysler, it's at least 20 years old, maybe 30, I would disassemble and inspect the system with full intentions of replacing it if it doesn't look suprisingly good.

    Once they start to leak it's too late.

    Good luck

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