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    Y-pipe failure

    Has anyone seen the flapper valve pins making a tear in the Y-pipe?<br />I had a one inch tear in my Y-pipe and the flapper valves eventually fell of and ended up farther down in the exhaust pipe.<br />My boat is a Fourwinns Horizon 18 with a 5.0 V8 and a OMC Cobra (Volvo) Outdrive.<br />The...
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    OMC Cobra 5.0 Raisers overheating

    On a routine check of my newly rebuilt engine we noticed the the holes that the flappervalve pins are inserted in had been enlarged due to overheating of the raiser. Instead of beeing round they were now 1.5 inches long causing the flapper valves to malfunction. Luckily no enginge damage.<br...
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