Sunday, October 17, 2010

Overstuffed??

I have been closely monitoring the new stuffing I put in last month.

What I discovered was the box dripping about every 8 seconds - BUT the stuffing box was getting hot to the touch. That shouldn't be the case according to my research, the box should only get 15-20 degrees hotter than the ambient sea water temperature (67 degrees at the moment). So 87 degrees should not feel hot, warm yes, but not hot. Hot to the touch is between 130-150 degrees.

So how is it dripping, but so hot??? My theory is that the drips are from the water coming thru the threads on the nut, not from the stuffing, and the stuffing is not getting lubricated/cooled as it is too tight in there.

So it must be the 3 turns of PFTE packing was too much. I took one turn out and we appear to be in business now. I do not seem to need a drip though, with no drip things are staying warm and thus I can assume lubricated.

Methinks I will have to keep monitoring for a few more trips...

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