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So I got our new 644 prop to replace the stock 536(??) that I dinged on our 02 SANTE from Delta today. I ordered up some pins and the weekend saver kit with the C puller. It's a nice kit, probably not worth the $$ overall, but with the decent price, group buy, etc. it all works out.
Question 1: I noted that the front sides (forward on boat) of the blades are ground a bit to varying degrees. The rear sides (where prop # is) is not ground. I am assuming this is factory balanced and they grind those sides. Is this correct??
Question 2: Note that I have never changed a prop. The install instructions are clear enough, but one of the warnings is strange. They talk about the 75% taper contact and a lapping compound if there is not enough contact. I am assuming that this should not be the case and how can you tell if the taper is off anyway?? Should I be concerned about this if it's not obvious that the tapers are off?? Simply assume that everything is fine with this and move along??
I am pretty excited over the hole shot upgrade we are gonna get, I know it's not gonna be like the 836(??), but it should be better than the stock prop. As a side note that expensive weekend kit has a Nylock nut and a short pin, be sure to get the right stuff and Gary at Delta forgot to give me an extra castle nut so I have to call him about that and get the right spare. Any prop swap tips are greatly appreciated, I wanna get this right the first time and thanks in advance.
Question 1: I noted that the front sides (forward on boat) of the blades are ground a bit to varying degrees. The rear sides (where prop # is) is not ground. I am assuming this is factory balanced and they grind those sides. Is this correct??
Question 2: Note that I have never changed a prop. The install instructions are clear enough, but one of the warnings is strange. They talk about the 75% taper contact and a lapping compound if there is not enough contact. I am assuming that this should not be the case and how can you tell if the taper is off anyway?? Should I be concerned about this if it's not obvious that the tapers are off?? Simply assume that everything is fine with this and move along??
I am pretty excited over the hole shot upgrade we are gonna get, I know it's not gonna be like the 836(??), but it should be better than the stock prop. As a side note that expensive weekend kit has a Nylock nut and a short pin, be sure to get the right stuff and Gary at Delta forgot to give me an extra castle nut so I have to call him about that and get the right spare. Any prop swap tips are greatly appreciated, I wanna get this right the first time and thanks in advance.
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