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  1. W

    Volvo AQ130 installed new head from B20 car engine problem with cooling

    One of the biggest problems is the years of rust scale build up within the heads and engine block. I have recently changed aq130 engines with a serviceable 2nd hand engine. On inspecting the water ways I could see flakes of rust in all the water ways which I put a water hose on and was surprised...
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    AQ130c Changing Cooling & Water Pump Seals

    The screw you refer to holds the internal cam in place that the impeller acts against to pump water.
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    Removal of AQ170 engine.

    Thanks for that Scott, that's the way to do it.
  4. W

    Removal of AQ170 engine.

    Somebody in their wisdom knew there was a problem with overheating and removed the thermostat the head gasket must of deteriorated over time to the point where when I throttled up it was enough to finally blow it. I think your advice is the only way ahead, lift the boat and pull the drive. Just...
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    Removal of AQ170 engine.

    I bought the boat before last lockdown and on first use the engine faltered. On inspection found head gasket had gone and water ingress had caused hydraulic action on a con rod. Until now not had any dismantling by me.
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    Removal of AQ170 engine.

    I need to replace my engine and the manual says this can be done by removing bell housing bolts to enable you to slide engine out. I am doing this whilst boat is still in the water. Have removed all bell housing bolts with engine supported by boatyard crane but can only withdraw it half an...
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