Leakage :-(

Hi, still new on this forum and has to ask you who are CC professionals !
I have three places where I have found leakage this weekend when I put it in water (firs time where I bought it last autumn).
When I bought the boat there was no leakage at all, almost dry inside at the bottom, but dirty...

# Raw water intake leak with one or two drops when the valve is closed.
One drip is right on the plastic and the lowest nut.
The other is from the first thread.
How to tighten it?

# The stuff box on the shaft axle. It dripps frequently, both on the top ( towards the engine) and at the lowest part towards the prop as well.
Is it possible to tighten, or what do I have to do?
I have read that it is important to have the right temperature on the shaft at this part, I do not understand the function of the stuff box!?

# From the rear of the boat i can se thru the inspection hatch ( above the stuff box) that there is a smaller runnel coming from the rear and along the shaft.
My own suggest is that it has to come from the rudder...But i cant see anything where I have the gas tank under the rear seat.

Please I would like to have advice and pictures how it looks like, and what you pro´s think of my problem.
The summer just started here in Sweden and me and my three small guys (7,9,12) have been looking forward to go skiing...

Last evening i took her up from water where I do not dare to have her left alone , where the pump is going frequently and spits out a couple of deciliters every 30 minutes....

The boat is an CC SN 196 from y 2000, approx 800h.

Best reg, Joseph

Thanks a lot!

If I´m allowed to ask some more questions, where I´m really new on this...
# When losing and re-assable the raw water intake - do I have to take apart the exahust as well on that side to get enough space?

#What means with thin... and aft... ( I´m swedish and don´t really got the words..)
Does the boat has to be in water at this step/measure? What if it will be to tight/hard,?

# The rudder - do you mean that i see it without taking the gas tank away? :-):-)
(if so i think I can sleep tonight!:-))
Does the rudder has an stuffing box as well?


Additional.
Exhaust - do you mean that it may come from the rubber-flap in the end of the boat?
The speedometer doesnt work - so it may be a possible cause! Thanks!

Joseph :-)

Our Swedish is not as good as your English!

Some water in the boat is normal.

The "stuffing box" is the 2 big nut(s) inside them are packings -rope pieces inside the big nut at the shaft and rudder which seal out water, yes you adjust these in the water, they need to drip a little, too tight won't let them cool and will cause damage.

you need 2 big wrenches to back off the thin nut from the thick nut. Do not use the wrench to tighten the packing, go as tight as you can by hand. ...run it around the lake and check it...maybe have to tighten or loosen depending on if it drips too much or not...it must drip some.

it is usually best to have engine cover and rear floor out of boat to see and work on these issues.

take pictures of your boat and engine and upload them here and ask as many questions as you need to ask.

The best sealant to use is 3M 4200 (urethane) or equivalent. If your exhaust port is leaking, it would be best to separate it from the hull & put the sealant under the flange.

Yes, sika is more common here in Sweden:-)
Have a couple of 3M 5200 - is it bad to use that?
(Do not know the difference between 4200 and 5200)
/ Joseph

Joseph,
The difference between the 4200 and the 5200 is pretty much the adhesive qualities. The 4200 sticks less and is easier to remove.

I've been able to get to the rudder port on some boats without moving the gas tank. It's pretty much by feel if you can get your hands back there but for just tightening up the packing is doable. Yes, you can 5200 on both sides. Don't worry about the threads on the nut. It's just there to pull the intake tight to the hull.

I would use the 5200 on the intake since the chances are low that it would need to be removed. Even if it had to be removed, a hot wire cutter can be used.

Think I found one of the leakage today, could not sit at the work and wondering so I went down to the harbor ....
There was still water in the large exhaust part ( which have two connections in front and one in the end, dont know the eng word...). When I disconnect on one side to fix the raw water intake, I saw water in a minor runnel from the exhaust, from the bottom, just after the tube were the hose is connected... I lifted it up a bit and it stopped, let it dry in the sun, than took some fiberglass compound/selant in two layers . Did not see any holes, but it was leaking from a specific area. It will dry until tomorrow, and I will put a third layer onto it. Now hoping that I have found and fixed the major leakage... Still praying that not will be the rudder...can not reach it without taking away the gas tank...

Tighted the raw water intake as well, put some sealant between hull and the flagne. Also putted some sealant onto the shread as well as under the first pipe, where i couldn't move it with a pipe wrench ... ( I´m not strong enough I guess:-) )

Still have to tighten the stuffing box, which I will do when its back in the water....But still dont really now how to do. Do I have to loosen the thin nut, rear from the big nut with the eye with the wire?
How much do I have to loosen the thin one, clockwise?
And if I will loosen the thin, then I will tighten the big nut by hand, but will that not be tighten as much as I have loosen the thin... didnt really get the function of those...
Is there anyone who can explain it very clearly to me? I Guess that I dont get the details enough cause of the language..:-(

// Joseph

Now after à couple of weeks.... Repaired the muffler which was one of the causes of the leakage. Still get some water from the back, can not see from were:-( probably the rudder packing...
Maybe a stupid question reg the shaft stuffing box: the drips, will they drip always (4-6/minute) when the boat is off as well as when you run the boat, or???
I have tighten the big nut, it has stopped the runnel, drips now approx 5 drips per minute, with engine off.
Or does it will be drippless completely when its off??
/ j