Re: Knocking under a load
When you stopped here this morning I described to you various kinds of knocking, you told me what you had, and and we determined that your problem was most likely the lower unit. Upon disconnecting the shift rod it was obvious that the shift was binding inside the lower unit.
Well, as I told you on the phone: The pinion broke a tooth which ground up at least 1/3 of the forward gear teeth. When I drained the oil, it came out silver from the steel particles in it so the bearings are contaminated with metal. The reverse gear is also damaged and chips of metal are lodged between the drive clutch and prop shaft splines. This was binding the clutch and making it difficult to go into gear. The chunks even damaged the pinion nut!
As I also told you, there is a good bit of corrosion damage inside the case at the water pick-up. So, The case is useable but marginal. All in all, the whole lower unit is toast, just about the only thing salvageable is the drive shaft.
You are lucky it got you home!
However, On the phone I told you that I did not have a 2 to 1 lower unit---in fact, I forgot about my blue and white 90 sitting in the back of the garage. It has a 2 to 1 in perfect running condition. So when you bring the boat back, 1/2 hour and you are ready to go again.
