Sounds high
Tom,
I think the specs for 3/8 bolts run around 16-20 ft lbs. I'm not sure it varies much from mfg to mfg. You could try Sensenich wood for some good info. Also, I think Ed Sterba would give you some specs. Aymar Demuth has been around forever and I'm sure Van would have a phone number for them.
Here's the procedure I use FWIW:
1. Set your torque wrench to 90% of the torque spec. Say 18 ft-lbs. tighen each nut and make sure none of them move. If any move, then you're interval since last tightening was too long.
2. Loosen all the nuts. Do this right before or after draining the oil
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
.
3. Let the prop sit for 30 minutes (or until the oil is fully drained).
4. Begin tightening the nuts to 10 ft-lbs using a cross pattern just like torqueing a cylinder head. Next go to 15 ft-lbs and repeat. Then go to your final torque spec. When complete, go around all the nuts one more time and make sure all are at the final spec. When you tighten one, you have a tendency to loosen the one opposite. The final check is to make sure this didn't happen.
5. Lastly, don't forget to check the tracking. Set the prop vertically and move a milk crate up to the bottom blade. Rotate the top blade to the bottom and make sure it is very (1/16") close to the milk crate.
Don't forget to put new oil in the engine and change the filter
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
.
It's harder to type than it is to do. Good luck.
John