Flush closing Sea cocks

[onesea]

New type to me and I guess before long I need to do some servicing.

I am guessing put Allen key in small hole remove and undo big nut?

What do I find then? Some kind of plunger arrangement? How does it seal? gaskets? machine flats?

Any advice appreciated..

 

[KenMcCulloch]

I have seen a few different types of seacock but that one is definitely new to me. The side entry is probably a good clue and I would expect to find a hollow conical plug with an opening to match the pipe entry, pretty much like a Blakes type but with a big nut and locking screw instead of the plate and bolts.

Let us know how it turns out when you do take it to pieces.

 

[prv]

I have seen a few different types of seacock but that one is definitely new to me. The side entry is probably a good clue and I would expect to find a hollow conical plug with an opening to match the pipe entry, pretty much like a Blakes type but with a big nut and locking screw instead of the plate and bolts.

I see what you mean, but that wouldn't be flush-closing.

The only flush-closing seacocks I've seen (on a J-109) were a different design, which pulled up and then turned (or possibly vice-versa). But when closed, the outside was completely flush with the hull.

My guess for this one would be a plunger that moves down the body of the thing, on a threaded bar connected to the handle on top. When all the way down it's flush with the outside and also sealed, when all the way up it's above the side exit for the hose and out of the way. But that's only a guess.

If the boat is out of the water, unscrew the top and find out

Pete

 

[woodstock]

Try this - http://www.impala28.co.uk/maintenance/original-seacocks/
They look the same!

 

[prv]

Try this - http://www.impala28.co.uk/maintenance/original-seacocks/
They look the same!

That looks like the badger!

Interested to know where the screw-down thread is. In the design I guessed it would have been the whole rod, but that doesn't seem to be the case in the drawing. I wonder if it's the bottom of the handle screwing into the cap? So you'd unscrew a bit and then just pull.

(I think the thread between the rod and the plunger part is fixed and just for mounting.)

Pete

 

[VicS]

All explained here http://landamores.co.uk/yachts/elanco/

Its the handle that is threaded

 

[prv]

All explained here http://landamores.co.uk/yachts/elanco/

Its the handle that is threaded

Ah ha. Thanks, seems like a cunning design, although the number of separate little seals is noticeable.

I might also be worried about the exposed rod getting bent when in the open position.

Looks like the OP should have all the information he needs now

Pete

 

[sailorman]

New type to me and I guess before long I need to do some servicing.

I am guessing put Allen key in small hole remove and undo big nut?

What do I find then? Some kind of plunger arrangement? How does it seal? gaskets? machine flats?

Any advice appreciated..

Elenco Ladermores have the spares
http://www.landamores.co.uk/HullSeals.html
I have them fitted on my Oyster37

 

[onesea]

Hey guys thanks for that, they will be the ones...

All fits in with builders etc...

Will have to lift her out to service, that will be few days work once every one else is out sailing

 

[sailorman]

Hey guys thanks for that, they will be the ones...

All fits in with builders etc...

Will have to lift her out to service, that will be few days work once every one else is out sailing

get some spare cap seals in stock or old avon hypalon to cut some from

 

[onesea]

Finally got round to servicing them. Anyone got any idea what size Allen key goes in the grub screws?

Seems its alittle whilst since they have been taken apart..