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    Volvo 5.0GL runs rough at low speed after warm up

    Ok I'm Stumped, have a 2001 Volvo 5.0 EF with a Prestolite Ignition system and a Holley 2V. Boat ran great beginning of the season then started to bog down. Did a complete tune up plugs, cap, rotor, wires, filters set the timing adjusted the idle to specs. Boat never ran so well.....till about 2...
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    Tune up and Engine Coating

    1. I just did the first tune up on a 5.0 GL PEFS Volvo Penta since we purchased the boat. While i was removing the plugs and cap and rotor, it looks like the whole engine was sprayed with some kind of coating? almsot like an automotive undercoat, had to crack some off to remove the cap. and I...
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