A video demonstration of the removal and replacement of a gimbal bearing on a Mercruiser Alpha Gen 2 Drive assembly. This procedure is similar with other brands of outdrives as well. ... read more
Welcome to Mallory Marine. We’re going to demonstrate the removal and replacement of a gimbal bearing on a Mercruiser Alpha Gen 2 drive assembly. This procedure is similar with other brands of outdrives as well.
Step 1 - Place the outdrive in forward gear.
Step 2 - Make sure the drive is in the down position and as vertical as possible.
Step 3 - Remove the outdrive. Remove the trim rams, the nuts holding the drive, and the speedometer pick up tube.
Step 4 - It is always a good idea to check the engine alignment prior to removing the bearing.
Step 5 – Remove the gimbal bearing using the Mallory Marine puller. Part number 9-79820. Follow the enclosed instructions for an easy removal. For a more detailed video on the puller itself, visit Mallory Marine’s website, or YouTube.com.
Step 6 – Install the bearing. Mark the outside face of the carrier to index the grease hole in the side of the carrier making sure the tolerance ring does not obstruct the grease hole. Using the proper mandrel tool, drive the bearing in place making sure you have aligned the mark previously made with the grease port in the transom housing.
Step 7 – Grease bearing. Locate the grease nipple on the right hand lower transom housing and pump grease into the gimbal bearing until you see it coming up around the bearing.
Step 8 – Check engine alignment. Install the engine alignment tool again making sure the alignment is correct. You should be able to turn the tool with two fingers when properly aligned.
Step 9 – Preparing drive for installation. Install “O” ring on yoke shaft and grease spline with spline grease. Install gasket and water passageway “O” ring. Grease shift slide making sure it is properly aligned. Grease u-joint assembly if equipped with greasable u-joints.
Step 10 – Install outdrive. Align yoke shaft through gimbal bearing and into engine coupler. Make sure drive is in forward gear by only pressure on propeller and pushing drive into place. Install retaining nuts, trim rams and speedometer hose.
Thank you for viewing. For further information and parts go to iboat.com.
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