Hello all. <br /><br />I have a 1967 Johnson 20hp that runs good.<br /><br />Anyways, the driveshaft bushing is shot. Actually this has two driveshaft bushings. One is up towards the water pump and it is rather large. One is down in the gear case and is smaller. How does one extract these. I consider myself stongly mechanically inclined having worked on engines all of my 43 years of life. <br /><br />Another thing I don't see is the seal that would stop water from coming down from the water pump into the lower unit. It appears that there is just that large bushing, unless there was an 0-ring inside the top of that bushing that I missed. <br /><br />I have read about making the pullers with threaded rods, big nails and such, but this lower unit doesn't seem to fit the bill of most of what I have read, as you can't get to the other end of the bushing to tap them out. This looks more like a job for the tool you have to use to get the driveshaft bearing out of an old mercruiser, but only on a much smaller scale. I actually did make one of those, it didn't take long, and it actually worked. <br /><br />I have a clymer manual for this engine, but I suppose you know that they do not cover bushing removals, nor do they do a very good job of covering the specific models. The book says, your model may or may not have all the parts listed, and junk like that. <br /><br />Any ideas on what the actual tool looks like? I have the tools here to make just about anything I need, but would like an idea on what it looks like. <br /><br />Thanks in advance for any help.
