You can go on line and download the manual I think. I changed my impeller this summer. The only tricky part is reinstalling the lower unit. You have to push the drive shaft and the shifter link up into the right places at the same time. There is a hole in the side of the housing that is plugged with a rubber stopper. You remove that and loosen a clamp that holds the two pieces of the shifter rod together. Then, when reassembling, you have to get the lower piece back into that clamp as you also get the drive shaft into the splined hole in the crankshaft. It's kinda like rubbing your head and patting your stomach at the same time. Good luck.
--Gary Hyde 2005 M17 sailboat #637 'Hydeaway 2' We can't change the wind, but we can trim our sails. Sailing is like "African Queening" thru life. On Oct 16, 2008, at 4:50 PM, Tim Diebert wrote: > I don't have a manual for my 4 stroke 4hp Yamaha OB. > I want to change the impeller. (had dealership do it last time) > > Can someone let me know how the lower unit comes apart, what to > watch for > and any hassles or pitfalls I can avoid. > Any help would be appreciated. > > Tim > _______________________________________________ > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
