86 johnson 50hp lower unit main bearing

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hiterdete

Recruit
Joined
Apr 25, 2005
Messages
1
I had a main upper bearing go out on my 86 Johnson 50hp lower unit. When I removed the bearing housing the bearing was in pieces. Could someone tell me witch way the conical bearing needs to be pressed on the driveshaft? The bearing needs to be presssed from the top of the shaft down. I think the cone is to be pointed down to sit in the outer race...and keep the driveshaft from dropping to the lower gear case...but i am not sure. Any info is much appreciated. Thanks in advance.
 
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alden135

Lieutenant Commander
Joined
Sep 1, 2004
Messages
1,770
Re: 86 johnson 50hp lower unit main bearing

Thats the evinrude but you could find your way on that site w/your model #<br /><br />P.S. I don't know a lot about outboards. I only know where to look for a lot about outboards. :)
 
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ob15

Chief Petty Officer
Joined
Jan 4, 2004
Messages
514
Re: 86 johnson 50hp lower unit main bearing

I hope the pro's correct me if I'm wrong, but when you replace the drive shaft & thrust bearing, you can not just take the old one out & put the new one in. The drive shaft should be removed and shimmed correctly with the new bearings and then reinstalled.
 
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