Hello all,<br /><br />I have a 1997 90hp V4 Johnson. Just purchased a water pump servicing kit that comes with the impeller, housing, o-rings, etc. In reading the service manual the service manual calls out the following special OMC compounds;<br /><br />"Apply a drop of OMC Adhesive M in the seal ring groove at each of the four ribs"<br /><br />"Lightly coat the exterior of the impeller cup with OMC Gasket Sealing Compound"<br /><br />"Apply OMC Needle Bearing Assembly Grease to flat area of the driveshaft. Install the drive cam."<br /><br />I have an arsenal of automotive type goops and greases. On previous impellers I've done I just used a little of the OMC Triple Guard Grease to hold the CAM or key in place.<br /><br />What is the other stuff? Is the gasket sealing compound just like the brown/black automotive form-a-gasket or more like an RTV?<br /><br />Is the Adhesive like a loc-tite or more like 3M 4200 type goop?<br /><br />Any valid substitutions, or is this stuff really needed?<br /><br />Thanks,<br /><br />DP
