Re: Driveshaft Repair
So I got the bearing preload set to 5 inch lbs, as per used bearing specs. I had to separate the bearings more, which is why I was initially getting the high reading. After separating them more, to the point they spun independent of each other, I reassembled, took a reading (which was obviously low) and continued to tighten the nut. Once the slack was taken out of the nut, another half turn after that and I was reading 5 inch lbs. I had some concerns with this, considering it seems like that nut should have been tightened more than half a turn, but the rolling resistance is set to what it should be, despite just being a half turn tight.
My issue is that I put the boat in the water today to leave it in my slip. On my was across the lake, I noticed a constant whirring noise. I have new u-joints, new gimbal bearing that was greased and installed all the way in with the proper mandrel tool, and checked my engine alignment which was dead on.
What is the whirring noise? I'm hoping it's just break in sound of a new gimbal bearing..but I think that may be wishful thinking? I'm beginning to wonder if this whirring could mean the rolling resistance is now to loose, despite being set at the 5inlbs? would that cause a whirring sound? Is it possible that the bearings were set with tightening that nut one half turn, and now that they're installed in they loosened up some? I'm kind of at a loss here.
I'd like to avoid taking the boat out of the water and pulling the drive, but also I'd like to avoid more severe problems that could potentially lead me to having to pull the motor, spend $$$, and miss out on a good portion of the season.
