I had the same issue. Tighten it o so slightly and you will be fine. After 
doing so while under way touch the gland , if its hotter than jacuzzi water, 
its too tight. I get about 4 drops a minute but don't be concerned if its 12. 
My bildge is bone dry always. I keep a rag by the water intake. After a day of 
sail and motoring I have a damp/wet cloth. After my keel bots started to show 
signs of rust, I was focused on water not getting into the bildge accept on 
long trips. I chipped away the white resin around the blots/washers and now it 
looks super clean and I can see what happening if anything.

Remember, a little tightening does a lot, so go slow!
Sent on the Sprint® Now Network from my BlackBerry®

-----Original Message-----
From: "Andrew" <[email protected]>
Date: Tue, 25 May 2010 15:38:54 
To: <[email protected]>
Subject: [IC27A] Adjustment of packing gland in stuffing box

I have a 1985 C-27 tall rig with a Universal M-18 diesel. The manual says to 
tighten the packing nut on the prop shaft to get a drip rate of 4 to 10 drops 
per minute with the engine off. When I had been running and shut the engine off 
I observed a very fast drip rate...perhaps 50 drips per minute. When I went out 
to the boat the next day with the tools and manual to make the adjustment it 
was only dripping at about 6 drops per minute. I started the engine and ran in 
gear for about five minutes under load at the dock. I shut the engine off and 
again I observed a rapid drip rate of 50 dpm or more. 

I know that I should not over-tighten the packing nut so as to avoid running 
the shaft seal dry which can overheat the seal and wear the shaft. I left it as 
it is because I don't know whether to tighten it some or just wait for it to 
slow down as the boats sits at rest. After a day of sailing that ends with 
motoring into the marina, I find that I do have to do about 10 or 12 strokes on 
my Whale Gusher manual bilge pump to empty the bilge. 

Should I tighten my packing nut some or what? I would appreciate some advice. 

  


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