Recent content by DS_G

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    IAC ( idle air control ) questions for 5.0 MPI

    I’m getting 100 ohms on new IAC valves.
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    Mercruiser 6.2 chirping noise

    Thanks to all. I checked all these without findings. Although the original belt was nearly new and not previously noisy, I changed out the belt and the chirping has resolved !!
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    Mercruiser 6.2 chirping noise

    Group, I have a 2008 Merc 6.2 MPI Bravo 3 with 500 hours. We just had the engine out to replace a corroded Y pipe. We replaced the raw water pump, alternator and P/S pump. After about 8 hours, a chirping noise developed, apparently from the front of the engine. The serpentine belt is fine...
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    Mercruiser y pipe corrosion

    Has anyone tried powder coating or other techniques to minimize corrosion on the lower flange area of the aluminum y-pipe, which lives in bilge water and outside raw water? This $1000 part requires pulling the engine to replace!!
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    Intake resonator for 6.2 MPI

    Thanks! My engine is 1A079680 If not present, could the resonator be added to an older engine? The tb is in the center of the intake manifolds.
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    Intake resonator for 6.2 MPI

    A number of articles on the MerCruiser 6.2 MPI note the addition of an intake resonator and aft-facing throttlebody for intake noise mitigation. I don’t see these parts on my MerCruiser engine or service manual. Does anyone know how you can tell if they are present?
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    Boat wandering at slow speeds, videos attached

    Has anyone actually installed smart tabs and NOT noticed an improvement? My 27’ Tahoe had a terrible wander. The transom shape also limits where tabs could be installed. With the new tabs, not only does my boat get planed off a few seconds faster, the wander is 95% gone.
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    Boat wandering at slow speeds, videos attached

    When the boat wanders in one direction, the tab to the outside of the turn encounters more drag, which counters the turn. Smart Tabs cured 95% of the wandering on my 27’ Tahoe, even though I could only mount them 1/2 way up the transom.
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    Boat wandering at slow speeds, videos attached

    Same here. Smart Tabs cured the wandering on my 27’ Tahoe.
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    Lowrance LST 3800 compatibility

    Thanks but as noted in the original post, changing the thru-hull transducer would require pulling the engine.
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    Lowrance LST 3800 compatibility

    Thx! The Lowrance transducer cable is HST-WSU. 106-48. I have the wiring diagram for the Lowrance, but most other 2 inch units don’t share their wiring diagram. I was hoping that someone would have an LST 3800 sitting on a shelf somewhere!!
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    Any way to reset an mpi without rinda tool

    Try a VesselView Mobile device.
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    Lowrance LST 3800 compatibility

    My 2008 Tahoe has a Lowrance LST 3800 in-dash depth finder with a thru-hull 200 Hz transducer. The display is failing and not amenable to repair, but the depth function works. I have been unable to find a replacement unit, and the thru-hull transducer can’t be replaced without pulling the...
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    New Engine Replacement - Engine Died and Hydro locked after 5 hrs!?

    As previously posted, a rapid Deceleration regardless of the cause, can pressurize the exhaust ports in a stern drive, causing backflow up to the level of the water pressure. Even with higher risers, a high-pressure water pulse is probably washing back into the engine. This is why you mainly see...
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    New Engine Replacement - Engine Died and Hydro locked after 5 hrs!?

    Do you have functioning exhaust flappers in place? Sounds classic for water entering backwards through the exhaust system. You are lucky if you have not blown head gaskets or bent a connecting rod due to hydraulic lock.
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