I have a 94 Volvo Penta 3.0 GL which the starter is giving me some grief, I had to tap on the solenoid to get it to start so I opened up the solenoid and cleaned up the contacts but still have a problem. I noticed that the lever going to the starter from the solenoid is a bit corroded. Does anyone know if it is ok to spray WD 40 on it to hopefully loosen it up or have any other ideas?