Replacement stuffing box

[YukonRon]

We have a 2016 R29 with the Volvo Penta D4-260. We just had the stuffing box re-packed while hauled out for painting, and found the threads were messed up, so it had to be replaced. The yard put in a new stuffing box that does not have the barb fitting to attach the small hose that comes down from the back of the engine. The hose was plugged and left dangling in the bilge.
The mechanic came out on a sea trial to adjust the new stuffing box. He left it dripping steady at more than once per second while running. On the way home I measured it with the temp gun at 30 degrees C (sea temp is 13 degrees C). When I stopped, it still drips at the same steady rate. He told me I can tighten it up after 4 to 5 hours break-in time.
Am I overheating my packing and/or cutlass bearing with this setup? I'm afraid to tighten it up and reduce the drip in case it runs hotter.
What is the correct stuffing box I should be using, and where can I get it?

 

[Jared Dunning]

I’m assuming you’re referring to the packing gland. It should drip about once every 10 seconds. The best way to set the proper drip rate is with the boat idling but not in gear, so the shaft isn’t turning while you make adjustments.