Recent content by valley_man0505

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    DD Inboard Pulls Hard Left When Letting Off Throttle

    I have a 21 foot inboard DD ski boat. It runs very straight under nearly all scenarios. However, if I am under power, as soon as I let off the throttle, it pulls HARD left. It seems to only do this if I am above roughly 40 mph prior to backing off the throttle. Is this normal for a DD (this...
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    How hot is "too hot" for Mercruiser 454 mag temp?

    You said you replaced one HG why not the other? Compression was fine in all cylinders except 5 and 7. Upon removal of the head on that side, a clear head gasket leak was found there explaining the issue. The other side wasn't touched since it wasn't worth the effort if the head from the...
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    How hot is "too hot" for Mercruiser 454 mag temp?

    I recently replaced a bad head gasket in my 7.4L Mercruiser 454 Mag EFI Ski (1995) with serial number 0F225581. Last weekend, I put it in the water and turned the key for the first time after this work was completed and it started right up. I let it idle at the dock for about 20 minutes...
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    1995 Mercruiser 454 mag EFI SKI Timing Adjustment

    Engine serial number in case anyone needs it in order to answer: 0F225581
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    1995 Mercruiser 454 mag EFI SKI Temperature Sender

    What do you mean you don't know what I'm working on? What other information is needed other than what is in the thread title?
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    1995 Mercruiser 454 mag EFI SKI Timing Adjustment

    I am going to be attempting to start my boat up this weekend after I completed a head gasket replacement last weekend. Does anyone know the ideal setting for the timing? Someone told me 16 degrees, but he was basing that off of the 454 in his Chevelle and wasn't sure if that applied to boats...
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    1995 Mercruiser 454 mag EFI SKI Temperature Sender

    I have two questions regarding replacement of the temperature sender unit. I have found YouTube tutorials, etc for other Mercruiser models, but can't seem to find anything similar the setup of my particular engine. 1). When I look up spare parts, the online lists (specific to my serial number...
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