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    Mercruiser 3.0 140 Timing Confusion

    Hello, i am confused about the total timing or my boat has something wrong with it. Boats a 1986 with 3.0 and says 140 on top with original distributor and points electronic conversion. According to THIS and other post i read the total timing for my boat should be around 28 degrees. So does...
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    Gimbal Bearing ID

    I have a new/old gimbal bearing for alpha one gen 1 housing and cant remember if it is a greaseable or sealed. It has a hole in the outer race but looks like the hole just stops. Does this mean its greaseable? Thanks.
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    Alpha One Gen 1 Outdrive Gasket

    Hello, I have an 1985 Mercruiser 3.0 with Alpha One Gen 1 drive. I am wondering if i am supposed to use item number 14 (outdrive gasket). I am pretty sure that it didnt have that when i took it apart but not 100%. Thanks.
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    Hot-Spark Electronic Ignition

    1984 Mercruiser 3.0 140. Installed Hot-Spark ignition 3DEL4U1 with new 3.0 ohm Flamethrower 40611 coil. Coil says to hook up + without resistor. Getting ~14.4v at + on coil. Hot-Spark says to not run over 14v from + on coil. If over 14v to put a resistor between coil + and Hot-Spark ignition...
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    3.0 oil

    What oil to run in 3.0 1984 engine. I think the manufacturer recommends thicker velocity oils. Wondering why? Like auto engines runs thinner velocity oils. Know this is like apples to oranges comparison. What do you run in your 3.0 and if you know why run a thicker velocity oil?
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    Tach

    Took boat out today and turning key to on position tach was maxed out, engine not running. Started and warmed up and still maxed out. About two minutes underway tach started working properly and stayed that way for remaining of trip. Any ideas where to start looking for the cause. 1984 Ekbo...
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    Trim Pump Fluid Check

    I seen that checking trim pump fluid is a routine maintacence item. Well I never have checked and have had the boat two years so now is a good time. I have 1984 Ebko with Alpha One Gen 1 drive. Is the bolt with the flat head slot on the top the fill hole? I also have two larger hex bolts (one...
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    Dual Battery Charging

    Looking for my options to charge a spare battery. I have a starting battery that is always hooked up during the season. I have a spare deep cycle that I would like to put a charge on every once in a while. What options do I have to do this while running? I might just get trickle charger but hate...
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    Transducer Location

    Looking for advice on transducer mounting location. They say to use starboard side with standard rotation. Have Speedo sensor there also. Which number? Thanks.
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    Cruising Speed Prop

    Boats a 1984 Ebko v165 16.5' with Mericruiser 3.0 and Alpha One Gen 1 drive. Currently have a Solas 14.5" 17p four blade prop. Running 25.5mph at 3600rpm at cruise and 33mph at 4600rpm at wot with usual load. I would like to lower my cruising rpms while keeping my speed. I am thinking of going...
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    Starboard switch

    I replaced my tilt and trim sensors.. The one on the Starboard side (which I believe is to stop the drive to come to far up) said it should be 21" 3/4".. That is almost hitting the ground on my trailer. I have a 1984 ekbo v164 if that matters.. I am running a alpha one gen 1 but not sure which...
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    What is this?

    Good morning, Long time listener first time caller... What are these round things on each side... They have wires going to them so its something electric... What do they do and does anyone have a general wiring diagram how they work??? I am sure there is information already on here but its hard...
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