Brendan Chandler needs some help ( Pics ) Any offers ?

[Sixpence]

On behalf of Brendan , as I found it easier than trying to explain how to post pics
Anyone know where the DogWatch way has gone ?

Anyway , two pics on Brendans behalf , over to you B

 

[Sixpence]

Don't know if anyone can help from the pics but the message reads


I have broken a turning block on the way over and am trying to repair/replace but need to snd photos to get advice on how to separate the old block,

Any takers before Brendan returns ?

 

[duncanmack]

S'easy Dave,

The pin for the pulley is driven in from the back, so he needs to drive it out towards the back. Be careful not to rivet the end you're battering in or damage will ensue to the sheave. If care is taken, and lady luck smiles on him, the pin will be re-useable.
Nae bother!!

 

[sarabande]

It looks as if the end of the pin has been peaned over to prevent it coming out, so it might be advisable to grind off the "T" on the head of the pin, which should then knock through to the other side without damaging the cheeks or the axle hole of the sheave.

 

[VicS]

[ QUOTE ]
Anyone know where the DogWatch way has gone ?

[/ QUOTE ]

Its still here http://homepage.ntlworld.com/topcatsail/Photo_tutor/Photo_Tutor.html

As far as the turning block goes I reckon the head of the pin is on the top and that it is peened over on the back.

You'll have to grind away the peened over bit at the back. The pin is very unlikely to be reusable so a new one will be required.
If it is not possible to obtain a new one or make one out of something else the answer may well be a complete new fitting.

 

[Danny Jo]

[ QUOTE ]
You'll have to grind away the peened over bit at the back. The pin is very unlikely to be reusable so a new one will be required.

[/ QUOTE ] I agree. The job will be more or less impossible without an anglegrinder - ideally a small one with an almost worn-out disc for its smaller diameter, to avoid cutting away too much of the back of the block.

 

[MoodySabre]

You are SO helpful Dave, posting pictures for the incompetent. You ought to be banned like translation for immigrants /forums/images/graemlins/laugh.gif

 

[Sixpence]

Cheeky old sod /forums/images/graemlins/grin.gif

It's my incompetence really , I couldn't find the DogWatch system so I took the easy way out /forums/images/graemlins/shocked.gif /forums/images/graemlins/grin.gif

 

[BrendanChandler]

<span style="color:blue"> Thanks Dave.

Lewmar Single Footblock Part No 189831400, No 3

The Pics are of a Turning Block (Footblock) that lead a Genoa sheet to the winch. The sheave shattered during an Atlantic crossing last week.

I have managed to remove the block by just unscrewing the 4 machine screws.

Lewmar cannot supply a replacement as they are apparantly obsolete.

The nuts for the machine screws are glassed into the structure of the boat. They are 5 1/8 inches (13cm) and 2 inches (5cm ) apart.

It seems likely that I can buy suitable sheave or have one machined to fit.

THE PROBLEM IS REMOVING THE AXLE.
The Stainless pin goes through the axle, a stainless 'pipe'

I cannot see how to remove the axle.

I have asked Lewmar but I guess they are closed for a week or two.

I am in the Caribbean and want to sail. I have rigged a temporary block to toe rail but am unhappy about potential loads.

Any advice or help would really be appreciated or I would be very happy to buy any surplus to requirements block with the same screw holes.

Does anybody know a source of obsolete Lewmar Blocks? I found an entry in Lewmar Finland catalogue on line but have not had a reply from them.

Brendan
</span>

 

[BrendanChandler]

Thanks Guys,

Is peened or peaned, like battered or pressed and spread?

If so, who is likely to have the machinery to peen the next one or is there any alternative. I am in Rodney Bay, St Lucia and I am sure that there will be somebody who has the kit but this is way beyond my expertise. What is the trade of a man with this it. For example would a machine shop in a boatyard have it?

Really appreciate the help.

Brendan

 

[VicS]

[ QUOTE ]
Is peened or peaned, like battered or pressed and spread?

[/ QUOTE ] Yes like you would a rivet.

 

[Danny Jo]

[ QUOTE ]
who is likely to have the machinery to peen the next one or is there any alternative. I am in Rodney Bay, St Lucia and I am sure that there will be somebody who has the kit but this is way beyond my expertise. What is the trade of a man with this it. For example would a machine shop in a boatyard have it?

[/ QUOTE ] The average boatyard should be able to cobble some sort of solution, but don't expect a result as neat as the original. If you're lucky, they'll be able to cut a new axle from a standard size stainless rod. The important end is on the underside, where it won't matter if the rivetting is a bit untidy.