PK3 Posted April 13, 2008 Share Posted April 13, 2008 Is there a past link with any pics of the steps to replace an impeller? Is it necessary to drain the lower gear lube prior to replacement?Thanks, Link to comment Share on other sites More sharing options...
Eric Wettschreck Posted April 13, 2008 Share Posted April 13, 2008 What type motor do you have? I just got done doing mine like 20 minutes ago. You shouldn't have to drain the oil. Link to comment Share on other sites More sharing options...
PK3 Posted April 13, 2008 Author Share Posted April 13, 2008 It is a Mercury 125HP. Did you shift the motor into gear prior to dropping the lower unit? Link to comment Share on other sites More sharing options...
Eric Wettschreck Posted April 13, 2008 Share Posted April 13, 2008 Mines a Johnson. I can't see them being very different, tho.I kept mine in neutral. I'm not too familiar with the Merc's tho, sorry. Link to comment Share on other sites More sharing options...
boatfixer Posted April 13, 2008 Share Posted April 13, 2008 No need to drain oil. The main reason to put in gear is when you are reinstalling the case, if you need to rotate the shaft to align it with the splines in the bottom of the crankshaft, it is much easier to do so by rotating the prop (which won't rotate the drive shaft if it is neutral) Just remember to leave in gear during the process. Link to comment Share on other sites More sharing options...
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