Freeing a seized Blakes seacock

[MoodySabre]

My son has had the boat for two years and it's about time the loo was usable!

Last year I did the tapping a drift up the outlet and giving the top some welly but it refused to budge. So the only weapon I haven't tried is heat and I shall try that in a couple of weeks. As the boat is distant from me I have to go prepared - any other tricks I can employ? Don't really want to disturb the through hull.

 

[Malish]

A freezing spray as used by plumbers etc might be another option to assist it along the way

 

[michael_w]

Penetrating oil. Go for lunch, return and belt it from outside with a length of broomstick and a lump hammer.

 

[Tranona]

Exactly as above, but don't take the screws completely out as the cone will come free with a bang and you don't want it flying around inside. You won't do any damage whacking it! Clean the cone and bore, lap in if required and reassemble with proper Blakes grease.

 

[vyv_cox]

Using a metal drift applies much greater force to the cone and will not do it any harm, it's a fairly ductile alloy. I use an old 1 inch chisel the wrong way around, hitting the cutting edge with a 2 lb hammer. This has freed cones that would not budge using a length of broom handle.

 

[Boo2]

My son has had the boat for two years and it's about time the loo was usable!

Last year I did the tapping a drift up the outlet and giving the top some welly but it refused to budge. So the only weapon I haven't tried is heat and I shall try that in a couple of weeks. As the boat is distant from me I have to go prepared - any other tricks I can employ? Don't really want to disturb the through hull.

I had the same issue with my Blakes seackco and I found Plusgas worked a treat. Just a quick spray then leave for half an hour then tap out the cone from the outside of the hull. Before trying Plusgas I'd tried WD40 and a wellying hammer with a steel drift, all to no avail.

http://www.amazon.co.uk/English-Abr...e=UTF8&qid=1366215121&sr=8-1&keywords=plusgas

Hth,

Boo2

 

[sailorman]

I had the same issue with my Blakes seackco and I found Plusgas worked a treat. Just a quick spray then leave for half an hour then tap out the cone from the outside of the hull. Before trying Plusgas I'd tried WD40 and a wellying hammer with a steel drift, all to no avail.

http://www.amazon.co.uk/English-Abr...e=UTF8&qid=1366215121&sr=8-1&keywords=plusgas

Hth,

Boo2

WD 40 is not a penetrating fluid
Plusgas is