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    1987 dt15 cdi

    I'm trying to determine if the cdi unit is at fault before forking out for a new one. The secondary ignition coil is contained within the cdi unit on this motor. The few testing procedures outlined in the repair manual all seem to check out with the exception of the secondary coil resistance...
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    AQ271C cooling system

    I recently purchased a boat with a 290A outdrive and an AQ271C engine. I have attached a picture showing where the raw water intake from the drive has been tapped into with a shutoff valve from the intake and a capped off stand pipe with another shutoff valve. Is this setup meant to make...
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    Volvo DP Question

    I recently bought a 28' steel hull work boat on Lake Superior. It has the 271 C engine. The upper gear box is a 1.61 290A but the lower gear is a DP-A as far as I can tell, based on the Volvo i.d. chart and the shape of the duoprop nose cone. This seems to be mismatched because the 290A...
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    Mark 25

    Can anyone direct me to a source for reed valves for a '56 Mark 25? New member. Great site!
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