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exhaust manifold

  1. Clogged Yanmar mixing elbow?

    Diesel
    I have a Yanmar 3GM30F engine with 2,500 hours on it. It starts cold on the first crank and runs like a champ, but I have noticed that recently I can't get it to run at revs higher than 2,700 RPM. I have started eliminating possible problems (air filter, fuel filters) and now I will try...
  2. Looking for Universal M30/5424 Exhaust Manifold

    Diesel
    Hello - We have a Bristol 35.5 (1982) with a Universal Diesel 24 HP motor - M30/5424. We are in the process of replacing the heat exchanger - and are worried the exhaust manifold might be bad, too. We have been looking all over trying to find one. Apparently Universal/Westerbeke stopped...
  3. Need Exhust Manifold for Volvo MD6A

    Gear & Maintenance
    Hello; New to Sail Net and never posted before. Hope I do it right. I have a Volvo Penta MD6A and have a crack in the exhaust manifold (they call it an exhaust pipe in the engine manual. Every where I look on line I can't find one. Any thoughts. Also been thinking about repowering (8,000 lbs...
  4. MD7A Exhaust Manifold Port identification

    Diesel
    I have a MD7A on my Cape Dory 28. I just got it 3 months ago and replaced the impeller, cleaned the thermostat housing and removed the exhaust manifold due to the large amount of debris. There was quite a bit of clogging so it was worthwhile. I believe I've figured out the flow pattern from the...
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