Genoa sheet pulley

[Sybarite]

The roller has given up inside the pulley. (Which cannot be opened.)

It is a fixed flat unit that turns the sheet back to the winch. It bolts directly through the deck with bolt hole centres at 105mm by 45mm.

I haven't seen any in the modern catalogues.

Would anybody have an idea if these still can be found somewhere?

Many thanks.

 

[BelleSerene]

They’re called cheek blocks. Google ‘genoa cheek block’ and select images at the top of the search screen.

 

[Dan Tribe]

Sometimes also called foot blocks or turning blocks.

 

[lw395]

Very often blocks which 'cannot be dismantled' can be refurbished if you drill off a few peened over rivets etc. They can be re-assembled with bolts or various metalwork ranging from artful through to bodgery.
Care would be needed on a highly loaded turning block of course.

I've rebuilt a few things like seized deck organisers and jammed ratchet blocks.
TBH it's sometimes more about inventing something useful to do while learning to use a lathe.

 

[Sybarite]

They’re called cheek blocks. Google ‘genoa cheek block’ and select images at the top of the search screen.

Thanks; my memory of English terms is fading...!

 

[Sybarite]

Very often blocks which 'cannot be dismantled' can be refurbished if you drill off a few peened over rivets etc. They can be re-assembled with bolts or various metalwork ranging from artful through to bodgery.
Care would be needed on a highly loaded turning block of course. .

The pulley is in a solid black aluminium casing which cannot be opened. So the whole unit hast to be changed. It will also mean bolting through the deck and opening the headliner to do this - a real pain. It will also involve changing both (port and starboard) at the same time for aesthetic reasons.

The other matter is that the bolt holes will probably not correspond.

 

[BelleSerene]

Thanks; my memory of English terms is fading...!

Yours does that too!

I was amused by the term ‘turning block’. As opposed to a non-turning block, we must assume. Which I suppose we could also call a blocked block.

 

[Tranona]

The pulley is in a solid black aluminium casing which cannot be opened. So the whole unit hast to be changed. It will also mean bolting through the deck and opening the headliner to do this - a real pain. It will also involve changing both (port and starboard) at the same time for aesthetic reasons.

The other matter is that the bolt holes will probably not correspond.

They must have got the sheave in somehow, so I expect you will find when you take it off that there is a pin in the centre which forms the axle on which the sheave rotates. It may well also be screwed in and therefore removable. as lw says you may have to find an inventive way of replacing the pin/axle if you don't want to replace the whole unit.

 

[Norman_E]

The pulley is in a solid black aluminium casing which cannot be opened. So the whole unit hast to be changed. It will also mean bolting through the deck and opening the headliner to do this - a real pain. It will also involve changing both (port and starboard) at the same time for aesthetic reasons.

The other matter is that the bolt holes will probably not correspond.

Most likely the shaft on which the sheave revolves can be removed downwards once the unit is off the deck. Whatever you do, repair or replace, you are going to have to remove it.

 

[rogerthebodger]

The roller has given up inside the pulley. (Which cannot be opened.)

It is a fixed flat unit that turns the sheet back to the winch. It bolts directly through the deck with bolt hole centres at 105mm by 45mm.

I haven't seen any in the modern catalogues.

Would anybody have an idea if these still can be found somewhere?

Many thanks.

I have some of these that are aluminium and used as turning blocks to feem my winch.

If these are not the type post a pic and we can then identify what they are.

 

[Boathook]

Very often blocks which 'cannot be dismantled' can be refurbished if you drill off a few peened over rivets etc. They can be re-assembled with bolts or various metalwork ranging from artful through to bodgery.
Care would be needed on a highly loaded turning block of course.

I've rebuilt a few things like seized deck organisers and jammed ratchet blocks.
TBH it's sometimes more about inventing something useful to do while learning to use a lathe.

I've just done the same with an old Lewmar mainsheet block with cam cleat. It's in use as a boom 'kicker' which is just as well as I managed to drill the 'pin' slightly off centre, but it still works!