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  1. M

    How Much power do I need?

    Hi All, We have a 25ft Larson San Marino running a Volvo 4.3V6 Carb and a 290DP drive. We are going to repower her over the winter as it's only used on inland rivers in the UK. The problem I have is understanding how much HP I need from the new engine. We will never go to sea, and I don't care...
  2. M

    Am I damaging my engine?

    Hi, We have a volvo/gm 4.3v6 carb (431A) which we use on the rivers in the UK. However, because of the low speed limit (7knots) the engine rarely breaks idle speed. In fact, if I remember correctly, we've only exceeded 1200 rpm once! Anyway, is this doing any harm to the engine / electronics...
  3. M

    Engine Replacement

    Hi Guys, I have a 25ft Larson running a Volvo A431 (4.3V6 Carb) engine which is having some issues we can't seem to sort. Anyway, we've decided to treat her to a new motor and have come across an EFI 4.3V6 and a MPI 4.3V6 Mercruiser which are within budget. Both are stated as coming with full...
  4. M

    Volvo V6 Hot Starting Problems

    Hi Guys, I'm having problems with our Volvo / GM 4.3V6. Model is 431A (Carb) and it's fitted in a larson san marino (1991).<br /><br />The engine starts very well when cold, but given 5 minutes of warm up it will not restart.<br /><br />Basically, it seems to turn but not fire. The plugs are...
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