What Type of Seal is This?

[boatpoker]

It better not be brass or you are in serious trouble ! Brass is never used below the waterline (except by French builders) because it de-zincifies in salt water and literally disolves after 5-10 years.
It is impossible to tell the condition of the metal from this photo due to blue/green deposits which are a result of corrosion. This is often just a surface condition (but not always) depending on the quality of the "bronze". The hose is toast and the clamps are severly corroded. If you try a use the grease nipple it may be so corroded that it breaks.

You have a dangerous condition. Do NOT play with this, bite the bullet and pay a qualified technician to inspect.

PS. Previous references to electrolysis are incorrect. What you see is "galvanic corrosion". Electrolysis refers to a chemical change in an electrolyte with the passage of electrical current and has nothing to do with corrosion on boats. Be wary of advice from anyone who uses this term in reference to corrosion.

[scoobert]

i know this is no joke. going to have someone look at it, then make the choice.
will be a $3000 haul out with thru hulls replaced....

[boatpoker]

Originally Posted by scoobert

i know this is no joke. going to have someone look at it, then make the choice.
will be a $3000 haul out with thru hulls replaced....

Ouch ! I feel for you but sometimes you have no choice.

[scoobert]

Originally Posted by boatpoker

Ouch ! I feel for you but sometimes you have no choice.

you correct, i have no choice, i dont have an extra 3000 right now. lol

[barnakiel]

I mean if you fix/replace all by yourself, the haulout should be way less than 3k. (?)

Last year we dried our boat and spent 10 days on dry. We have lowered the rudder, replaced the cutless bearing, replaced the gland (what you call the seal), gritted the keel, primed the keel (epoxy), antifouled the bottom, replaced some skin fittings and most of the sea-cocks (6x).

The full monthy, materials included, cost us EUR 1k.

DIY, BYO, etc.

b.

[scoobert]

well, the haul out is 525 alone.
5 thru hull intakes, they must cost 400 each right?
bottom paint at 4 gallons
gland,
cutlass
seacocks

[RaymondR]

I would not get to enthusiastic about changing things out if the old stuff is without corrosion and still generally in good shape. A lot of the old stuff is far better quality than that available these days and you may introduce something which will actually cause corrosion.

I now do most of my own work on my boat because I had so many bad experiences with so called "professionals" in the past.

[scoobert]

i was going to have a pro do the thru hulls. reason being if they foul up and the boat sinks in a month, you sue them.
if i did it and it sank, oh well....