Picked up a 2006 mobius LSV about a month ago and finally giving it the full health check. My first inboard
I noticed that the bolts for the prop shaft V-drive coupler are all loose. They are still on since the nut is a lock nut but all of them can easily be turned by hand. I went to check the gap with a feeler gauge and I couldn't get any of them to fit anywhere around the coupler. I'm assuming this is ok right? as long as if any gap is present it is less than .003". Was going to go ahead and just tighten down the bolts.

Compression check came out good ~ 150 on all cylinders
I do have an oil leak coming from the V-drive unit but still have not found the source
I'm replacing all the fluids and the old still looked pretty good.
What's the best position to have the boat when checking fluids? In the water or out on the trailer? Right now I have it in the drive way but still sitting slightly bow up