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  1. J

    Mercruiser Head Gasket Orientation

    I am replacing the heads on my 2000 Mercruiser 5.7 EFI. I have the OEM Quicksilver head gaskets (#27-75611001), however there are no obvious markings indicating which side of the gasket goes up. One side has slightly raised sealing surface outlines, and some imprinted text, the other is...
  2. J

    Alpha 1 gen 2 outdrive knock with prop, no knock without.

    Hi everyone, I recently pulled my drive and had the upper resealed, and purchased a brand new OEM lower. Put everything back together. When checking the shifter while the engine was running, there was a knocking sound coming from the outdrive in forward and reverse, nothing in neutral...
  3. J

    5.7L Manifold / Riser replacement

    Hi all, I have a 2000 5.7L EFI (Serial: #OL651960). I bought my boat used 1 year ago(1st boat), and I'm just coming up to speed on riser/manifold maintenance. I recently just installed new thermostat because I seem to be running a little hot since last year, maybe 5-10 degrees...
  4. J

    Alpha one Gen II Gimbal Bearing grease fitting missing?

    Hi all, I have a 2000 Mercruiser 5.7L EFI with an Alpha one Gen II outdrive and in going through routine maintenance, I noticed I don't have a grease fitting at the gimbal housing. I have what looks like a torx bit screw. Does this mean that I have a perma lube bearing in place? I've...
  5. J

    Engine alarm buzzer question

    Hi all. I have a 2000 Mercruiser 5.7L EFI. After the two warning beeps go off and the engine is started, I am getting a low hum from the alarm buzzer, maybe at 1/8th the volume of the normal warning beeps. During normal operation engine temp is 170, oil pressure is fine, and gear lube is...
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