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Recent content by mahmudengbd

  1. M

    Bearing damage of Outboard Engine

    1. For number 1 engine, the reason of overhaul last time was – Sticky the crankshaft. After dismantle the Engine we got Timing chain has moved from its original position. And there were the sign of Piston hammering. Picture:- 1. For number 2 engine, the reason of overhaul last time...
  2. M

    Bearing damage of Outboard Engine

    May be the end cap were in wrong position. But after opened, I can not confirm about there previous position - they were wrong or wright. Is there any other possible reason to damage number 2, connecting bearings of both engines? I have checked all other connecting & main journal and bearings...
  3. M

    Bearing damage of Outboard Engine

    Dear Experts, I am working on 2 nos outboard engine of Mercury VERADO, 250 HP, GEN 2, 4 strokes Model: Model: 1250V34ED, The fault of the engines - 1. Knocking noise from the inside engines at low RPM. 2. During running with load (RPM 3000-4000), reduce the RPM (700-1000) automatically...
  4. M

    Alarm code

    After overhauling the engine: Engine Name: MERCURY, VERADO, 250 HP Model: 1250V34ED Serial No. 1B781600 The Engine is cranking (at 170 RPM) but not starting at all. An alarm is raising and display on panel board: ----------------------------------- ALARM DETAILS -1 NullReferenceException...
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    Water inside cylinders

    I have checked 1. Cylinder block by water pressure test for leakage. 2. Cylinder Head by water pressure taste for leakage. 3. Head gasket check carefully. in all step I have not found any leakage or damage. But I have got the blindness in gasket that may fault. You will understand by following...
  6. M

    Water inside cylinders

    I am overhauling a Mercury verado 250hp, model: 1250V34ED engine. The problem was of the engine is 'not crank at all' Now I have dismantle the engine and got 'Water inside cylinders'. Then I have check the cylinder head and Block by water pressure for any leakage, but got OK. I have check the...
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