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Recent content by louc

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    Omc 351w king cobra ignition conversion

    Agreed I prefer the simple mechanical centrifugal advance with springs over an electronic mystery box! Their distributors look just like a 1970s GM HEI unit.
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    4.3 Mercruiser - randomly dies

    Agreed went through this same business for the last 2 seasons, what fooled me was that the coil problem was somewhat intermittent, and it tested well on simple primary and secondary ohm testing. How hot it got was what made me change it with one of my spares and the improvement was immediate...
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    454 Fuel Pump/Pressures

    I replaced the old Carter mechanical pump on my 1988 4.3 back in 2018 with a Sierra because I couldn’t source a Carter when I needed it. Recently I did all the tests on the fuel pump because I finally rigged up a test kit that could be used to measure pressure with the engine running. Passed all...
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    Omc 351w king cobra ignition conversion

    https://performancedistributors.com/ I have not used them but have heard good things from people who did. Not cheap though. Neither is the Delco EST for that matter. On my old boat I thought of converting from the points distributor but since I grew up with cars with points, I don't see that...
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    Omc 351w king cobra ignition conversion

    The parts for those systems are basically NLA for everything so if I had one I'd either see if you can find a Delco EST set up, or there is a company called Davis Unified Ignitions that will custom make an electronic distributor that still has a conventional centrifugal advance. Petronix has...
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    4.3 Mercruiser - randomly dies

    What tipped me off to this was a hard to find problem with my boat that seemed more like a fuel problem, after going through the whole fuel system including the tank, it turned out to be a gradually failing ignition coil. It would start OK when cold then lack power, stumble, misfire and stall...
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    4.3 Mercruiser - randomly dies

    One way to try to find which component is causing the problem is to use an IR temp gun. When coils go bad, sometimes they start getting really hot, and that can cause problems similar to what the OP experienced.
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    4.3 Mercruiser - randomly dies

    were the electronics mounted to the exhaust elbow? if so you can certainly see how that could happen! Note to Mercruiser, exhaust elbows get hot, D'oh!
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    454 Fuel Pump/Pressures

    A couple of guys over at iboats actually converted their engines back to carbs due to problems sourcing fuel injection parts all these years later. While it seems like a backward step, you can always get parts for a Holley or Edelbrock marine carb, I can even get just about anything I could...
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    Winterizing closed cooled 5.0

    My brother bought a 2020 Chapparal with the 4.5 V6 I/O with that system. The drain appeared to work the first few years he had it but I explained to him that when it clogs there is hardly any access at all to get at those block drains. To change a starter in that boat you’d have to pull the...
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    Winterizing closed cooled 5.0

    The system you have is actually easier to winterize than a raw water cooled system, because draining the manifolds and exchanger is easier than draining the block/heads because the access is much easier. Look at the complication that Merc when to just to offer that quick drain system with raw...
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    BF60 Moisture in engine oil

    started with this... bought a couple of these wound up with this when I got it all back together it started instantly I was actually shocked.
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    BF60 Moisture in engine oil

    Long Island NY, parts cost was $550 for a pair of reman Chevrolet 4.3 V6 heads, $120 for a marine head & intake gasket set and about $100 for a set of new ARP cylinder head bolts. So less than $800 parts cost plus my labor. But inboard engine parts are cheap vs outboards because they are just...
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    Volvo Penta 5.7 1996 TBI Low compression and steam out of crank breathers

    wonder if theres a check valve thats not holding in the pump
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    Engine noise identification

    could be a few things, bad valve lifter (doesn't pump up like it should), bent pushrod/stuck valve, loose rocker retainer bolt, rocker stud pulled out, for a few. if you are going to go at this familiarize yourself with the procedure for adjusting the hydraulic valve lifters.
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