Can some one please tell me the correct trim/tilt motor to replace the original for a 1988 OMC CObra 5.0?? I have searched several of the online part stores including iBoats and can find one for most every year but 88. The current motor works intermittently and tapping the case tends to get it to run for a few seconds. Had the motor apart a few years ago. Cleaned brushes etc and ran fine but now is weak (acts like the battery is low) and internittent. I have verified voltages and relays are OK and battery is fully charged (main starter cranks forever). I think simplest repair is to replace the trim motor.