88-89 Mercury Lower Unit Problems

folkj

Cadet
Joined
Jun 4, 2009
Messages
13
87 to 89 Mercury 25Hp Red Stripe (Not sure of exact year but this is the serial#)
Serial# OB364808
Long Shaft

I have been trying to trouble shoot a problem for the last few months and I'm positive its the lower unit.

So far I have purchased a new prop becuase I thought it was a spun prop. But that doesn't seem to be the case.

The motor starts and idles pefect. The rpm's can go full out but the problem is that when I slowly move the throttle forward the boat gains speed and the then as soon as I increase the throttle the RPM's increase but the lower unit seems to kick out and then I have to disengage the throttle because the RPM's just go higher but the motor is not moving anywhere.

The shaft for the prop is a little bent and I have a feeling the other shaft that runs to the upper part of the motor maybe bent as well.

Can someone help and let me know what I need to do to fix it?

jay
 
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