48 SPL Knock

jim_b_20653

Petty Officer 3rd Class
Joined
Apr 23, 2008
Messages
92
Hello All,

My 1987 Evenrude 48SPL has been running great all summer, but has recently developed a metalic knocking sound when in gear and under load. Still runs and shifts fine, but makes a loud tap that varies with RPM when under load. The sound goes away when running on the hose, just happens under load. I suspect the lower main bearing, or a bearing in the lower unit is going bad. any ideas? Thanks

Jim
 
Top