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  1. Z

    3.0 GS - Backfire and Ignition

    My 3.0 GS MNCS when set to base timing w/ shunt to 0 degrees per the manual, it starts and idles fine, but when going above 1/3 throttle it stutters and backfires. Based on what I have read it would appear to quite possibly be a lean fuel issue. However, if I advance the timing with the shunt...
  2. Z

    Volvo Penta Sealing Compound 1141570

    I am wondering what the best alternative is to use in place of Volvo Penta Sealing Compound 1141570 that is required on the plug and hose nipple on the manifold (I'm assuming the plug too). I found information here where Don states a little grease is all that is needed in place of the Volvo...
  3. Z

    3.0 Backflush Technique

    I'm wondering if there is a best practices method to backflush the raw water cooling system on the 3.0? I swapped out a failed impeller and thought most of the broken pieces were in the housing as well as the hose leading to the thermostat housing. I ran water through the hose and cleared out...
  4. Z

    Water on Spark Plug

    I was out boating the other day and attempting to pull up new skiiers and did quite a bit of circling - take off, turn, slow down and cut the engine. During this I experienced a stall on take off and then a loss of power. After returning to the dock and inspecting things I found a water...
  5. Z

    Fuel/Water Separator For Volvo 3.0

    I'd like to install a fuel/water separator on my 3.0 L but am wondering how I'm going to fit it and what I need to get. In looking through the forums I found this which looks decent, but I do not have a nice vertical wall to bolt the bracket to and it's quite cramped in that location...
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    Volvo NC Fuel System Manual

    Hi, I'm looking for page 2-52 out of the NC Fuel System Manual. The manual in the adult section is missing that page and it has the Specifications for the 3.0Volvo carburetors which I require. Thanks in advance!
  7. Z

    Larson 174 SEI w/ Volvo 3.0 GS

    Hi! I have recently purchased a 1996 Larson, and it seems to have a small problem. I have been reading through posts and the Adults Only section, and based on what I've read I'm wondering if it might be a carb/fuel system problem. The boat starts right up and idle sounds fine. When moving...
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