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    Mercruiser Alpha 1 Gen 1 -- Gimbal bearing

    Good evening, I'm looking for a little advice on gimbal bearing installation. Quick context to question ... I have a 1988 Merc 3.7L tied to an Alpha 1 Gen 1. I've had the boat about 5 years and we run it quite a bit in the summer, and it has served us well. I have re-sealed the outdrive...
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    Alpha One Gen One -- melted seal and water pocket

    I have a 1988 Mercruiser 3.7 with an Alpha One Gen One. Despite the idiosyncrasies of the engine, it's been quite reliable for me and provided a lot of fun. This post concerns a finding during my annual maintenance on the outdrive. This year, those maintenance items included gear oil change...
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    Pertronix ignition on a Merc 3.7

    I have asked this question on these forums before in a roundabout way, but I have a little bit more information now. I am experiencing some intermittent hesitation at higher rpm’s on my MerCruiser 3.7. When the issue occurs, the tachometer begins to jump around a bit. I have unplugged the...
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    Mercruiser 3.7 heat exchanger repair

    Hello all, I have a1988 3.7L with a 4” heat exchanger. When I pour coolant into the reservoir, it comes out through the water inlet ports on the out drive. Obviously a leak in the heat exchanger. I have purchased a pressure tested unit from ebay but who knows how long that will last. Has...
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    Mercruiser 3.7L Ignition Issue

    Hey everyone! ​I have a 1988 Mercruiser 3.7L 165 HP (B954661) in a 1988 Celebrity Crownline. I've been having a great time with the boat this summer, but I've been experiencing a pesky issue related to the ignition. The basic symptom is that the tachometer is bouncing around a bit and the...
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    Mercruiser 3.7 choke question

    I've got an '88 Mercruiser 3.7 with an Alpha 1 gen 1 and a MerCarb 2bbl. I know the motors have their problems, but this one is in geat shape. I've done cam sleeves, alternator conv., pertronix with new coil, and a reseal of the upper unit. Boat runs great, for the most part. My issue is with...
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