Carnivalride said:
Alright I guess I'll stir stuff up a little since you guys are all telling him vibration and bolts coming loose with a 2 blade prop is normal.
How much vibration are you guys talking?
is your v-drive, propshaft and strut all in alignment?
are all your components balanced?
are you running a good 2 blade or some rusted old thing you picked up and cleaned up?
Maybe I've owned and driven a v-drive too long (23+ years with this one) and consider what your calling vibration normal. The only vobration I really recall with mine is while turning under power or pulling the kids on a heavy tube while turning causes the prop to cavitate and that causes vibration. All my fasteners are stainless with the nylon locking nuts and even though I do inspections and nut and bolt checks rarely do I find things vibrated loose. think.gif
Thanks Loren for bringing up other possible causes for vibration. Good points.
I have been thinking about the vibration also. There will be some vibration, but without feeling it, it's difficult to say what's normal.
As Loren said, I don't notice vibration in mine either because I've driven it for a length of time and what I feel is normal, as in I don't notice it.
This may have already been done, but grab ahold of the driveshaft and see if there is any side to side movement. There shouldn't be any.
Go to the prop and grab ahold of it, there should be no movement of the propshaft. There is a bushing in the strut that can wear. (easy fix)
Nothing in the drive line should have any movement, except the V-Drive shafts. There should be some backlash in the gears. (small amount)
We tend to joke about bolts and nuts coming loose in our V-drives, but the truth is, I don't.
If it has a nut on it, the use of nylock nuts pretty much eliminates that, unless you have movement between parts.
If a bolt is just threaded into a part, loctite usually stops it from coming loose.
There are a few exceptions but not many.
The biggest problem I see is when people reuse the nylock nuts over and over. They do lose locking ability.
I've heard 3 times use for nylock nuts, but I'll use them 5 times and maybe more if, when they're installed, the nylon part still feels tight.
If I can screw the nut on with my fingers, I'll use the nut somewhere else where there is no vibration. (not in the boat)
Does the prop look straight, like not hitting something?