Gooseneck update

[Norman_E]

Some may remember this thread about the slop in my boat's gooseneck. I have now brought the removeable parts home and machined out the oversized holes, and fitted bronze bushes and grease nipples. The bushes for the part fixed to the mast are loose on the pin in this photo. Because I have to ream out the holes in the mast fitting to take them, I have made an attachment which will slide in the mast groove and hold the adjustable reamers in line so that I can turn them with a ratchet spanner.

 

[Searush]

Very impressive, had a few hours to kill did we! I'm impressed you have the skills & equipment to make the parts, but do rather suspect you may have over-engineered a tad.

I don't think that there is much strain on the boom fitting (in normal sailing!) and I'm not sure that there is much requirement for regular lubrication. If there ain't enough wind to move the boom across, there probably ain't enough to move the boat. Still it does look good. Well done.

 

[Blueboatman]

Proper job. Milling machine in the garage?

Considering the ammount of work and articulation it performs, I have always thought them a tad under-engineered myself, especially in alloy.

I have made nylon 'penny' washers for cheeks and bearing surface between gooseneck and boom. The cheek ones are very thin but do help.

 

[Billjratt]

Excellent job, and if you keep the greasegun to hand you will never have another creakyboom poor nights sleep! I'm almost worried you may have made it too perfect.








ImustnotcovetmyneighboursreamersImustnotcovetmyneighboursreamersImustnotcovetmynei

 

[Norman_E]

Milling machines in workshop! including the home built one in the picture, plus a small Warco vertical mill/drill.

I believe that the original setup was badly flawed, and the amount of wear that it had rather proves the point. As for over-engineering, I can only quote Henry Royce's comment to someone who queried the high price of his cars. "The quality will remain long after the price has been forgotten."

There were two nylon penny washers to take up the sideways play but both are cracked. I am looking for some 1.5mm or 16th inch nylon sheet to make new ones, so far with no luck, but might also consider using tufnol.

 

[sarabande]

Not bad for a finance specialist !


"I am looking for some 1.5mm or 16th inch nylon sheet "


How about some rigid polyethylene sheet from ice cream or similar food containers ? Doesn't swell like nylon.

 

[Norman_E]

If I cannot get nylon or acetal sheet I will try that. I do have some 14mm nylon washers, but they are 3mm thick.

Anyone know what CD's are made from? They already have a nice hole in the middle!

 

[Bosun Higgs]

acrylic I think.

 

[Seajet]

Now if you can fit that lot into a cabin, a lot of us would be happy to sleep on deck !

 

[NOHOH]

Have you thought .....

There were two nylon penny washers to take up the sideways play but both are cracked. I am looking for some 1.5mm or 16th inch nylon sheet to make new ones, so far with no luck, but might also consider using tufnol.

............of using a piece of delrin rod........ centre drilling and parting on a lathe to your required dimensions

 

[smonard]

You could try here:
http://www.directplasticsonline.co.uk/PTFE_Sheet.html

Why not use PTFE? Very slippery.

Nice job on the gooseneck, I've been trying for years to find an 11mm pin with reefing horns on


Simon

If I cannot get nylon or acetal sheet I will try that. I do have some 14mm nylon washers, but they are 3mm thick.

Anyone know what CD's are made from? They already have a nice hole in the middle!

 

[Norman_E]

Now if you can fit that lot into a cabin, a lot of us would be happy to sleep on deck !

You would need a pretty big boat to get all my tools in to it. My house was built by a local builder as his own home, and he originally planned a swimming pool, but never built it. He did however build what he called the pool room on the back of the double garage. Though it might look like a wooden shed it is in fact an 18 ft X 14 ft room of brick cavity wall construction, tastefully pine clad inside in early 1980's style! It is double glazed and central heated. It even has its own "smallest room" leading off it. It makes a terrific workshop, separate from the house so that I can make as much noise as I like!

 

[Plevier]

Respect!!

I have some very tough plastic washers - Citroen gear linkage components actually - but they are 24x13x2.4 you're welcome to a couple of those if any help.

Are you near Brighton or Lewes?

 

[Norman_E]

Thank you for the offer, but I have now located a source of small pieces of 1mm & 2mm tufnol, and will make washers about 50mm diameter from that for the horizontal pin, and a bit smaller for the vertical one.

 

[Hoolie]

... ... ... Anyone know what CD's are made from? They already have a nice hole in the middle!

I believe it's polycarbonate. That's why they're tough and easy to scratch

 

[Norman_E]

You could try here:
http://www.directplasticsonline.co.uk/PTFE_Sheet.html

Why not use PTFE? Very slippery.

Nice job on the gooseneck, I've been trying for years to find an 11mm pin with reefing horns on


Simon

Are you sure that you need 11mm? It is a bit of an unusual size. I think you may actually need a 7/16th inch pin. The difference in size is less than 5 thousandths of an inch, the metric size being smaller.

It would be a fairly simple job for any stainless steel fabricator to weld up a pin with ramshorns and plates to take the clevis pin to hold the tack of the sail. I would suggest that the thread should be 1/2 inch UNF, with a hole for a split pin beneath the nut.