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Aqua Lift Muffler C-34 New Design


Part #: F8090

Price: $559.91


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Replacement aqualift muffler for the Catalina 34.

Due to the unbridled success of the current production Catalinas, the factory's in house glass shop is fully focused on producing their great new boats. As a result they are unable to produce small fiberglass parts including mufflers. Our new design was approved by Catalina Yacht's engineering department as a replacement for the original rectangular muffler, our part F7970.

Dimensions:
  • Base: 14-1/2" X 14-1/2"
  • Top: 14" diameter
  • Inlet and outlet tube outside diameters: 1-5/8"
  • Height including inlet and outlet tubes: 9-1/2" (1/2" shorter so that it can still sit on top of the existing wood platform)
  • Drain plug: 1/2" MPT
  • Resin: Clas 1 fire retardant epoxy vinyl ester thermoset
  • Glass: Corrosion-resistant E glass
  • Volume, internal: About 4.5 gallons versus the original design that was about 3.8 gallons
  • For additional dimensions, see the photo below under "More images"

    To replace your old muffle, confirm that the dimensions above and the dimensions on the photo below under "More images" will fit in your boat. It is designed to replace the muffler F7970. That said we have no way to guarantee that that muffler was installed in your boat as Catalina didn't maintain records as to which muffler design was installed in each hull. Each boat was hand built so there may also be variations in your particular boat that might make the installation more challenging. If the dimensions match F7970, and you have room for the slightly larger base, this is the correct muffler. If the dimensions don't match F7970, call our technical support line found under "Contact Us" below.

    A tip reported by other customers to check fit in your boat: Use an appropriate size cake carrier as a template to check the fit.

    Important Cautions!
    Some customers will attempt to repair their old mufflers. Since Carbon monoxide is odorless, colorless, tasteless and deadly, any repairs should be done by a qualified, experienced fiberglass technician.

    Two ways I have seen an old muffler fail are:
    1) The seam at the bottom edge can fail. This can sometimes be repaired by removing the muffler. After a thorough cleaning, you may be able to saturate the failed joint with WEST epoxy, clamp and allow to cure.

    CAUTION! The muffler must be pressure tested to 5 PSI while immersed in a water bath to check for leaks after any repair is attempted. Given the above cautions about carbon monoxide, If it leaks after a repair, YOU COULD KILL SOMEONE. We highly recommend the installation of a carbon monoxide detector.

    2) The bond between the inlet tube and the box itself can fail. This typically occurs because the vibration of the engine is transmitted directly through a rigid hose to the stationary muffler. In this case, it is impossible to achieve a successful repair. Even with the installation of a new hump hose to help isolate the vibration (which we highly recommend), there will be much vibration transmitted to the fiberglass tube. To be strong enough, the repair would have to be made on the inside of the muffler where you have no access. In order to leave the enough fiberglass tube exposed for the hump hose, a repair from the outside would be too small to be secure enough given the serious safety concerns involved.

    Notes:
    1) This is an oversize item which does not conform to our standard shipping policies. Call 800/959-SAIL for a shipping estimate.

    2) You will most likely have to remove the access door and frame to get your old muffler out and to install the new one.



  • More Images: (click to enlarge)