Boom-vang block on O'Day 302

[Michel16055]

Help,

The plastic wheel on the boomvang decktop block is broken and it only comes in one piece. Cannot find it anywhere.Someone suggested I drill out the pin holding the wheel then I would be able to replace wheel only at fraction of the cost.

Can this be done and will it compromise the integrity(for a lack of a better word) of the block?
Or if anyone can point me in the direction where I can find one I would appreciate this as well.
Have a great day.
Michel
~~~_/)~~~

 

[Joe11688]

Help,

The plastic wheel on the boomvang decktop block is broken and it only comes in one piece. Cannot find it anywhere.Someone suggested I drill out the pin holding the wheel then I would be able to replace wheel only at fraction of the cost.
View attachment 23116View attachment 23117View attachment 23118
Can this be done and will it compromise the integrity(for a lack of a better word) of the block?
Or if anyone can point me in the direction where I can find one I would appreciate this as well.
Have a great day.
Michel
~~~_/)~~~

Have you checked with Rudy at D&R Marine? http://www.drmarine.com/
He may have one in stock. A lot of blocks on the O'Days were supplied by Schaeffer Marine. If you want to replace the sheave, you could drill out the old pin and replace it with a new sheave, a bolt and lock nut. I had to do that when I replaced my main halyard sheave on my mast, a couple of years ago. This year I had to replace my Jib sheave block. I'm not too fond of plastic sheaves. I've been replacing them with metal.

 

[Shoaldrafter]

Michel of Chazy

Michel,

As Joe said, the sheaves in blocks can be replaced. When drilling the pin out use a slow speed and cutting oil so as not to burn metal.

West Marine shows repleacment sheaves on page 653.

Joe mentioned using bolt and nut. What is called axle bolt is what is used. The tread can be cut back to correct length with die or made into clevis pin but drilling hole for cleavis ring is difficult.

Clevis pins are an alternative, if you find right diameter but having pin hole in correct location is again issue. I do not have a drill press with small parts clamp.

There are others who supply replacement sheaves including the original manufacturers of blocks. For example see:

http://www.dwyermast.com/items.asp?cat1ID=40&cat1Name=Hardware&familyID=25&familyName=Sheaves
( a small old line nautical supplier in Connecticut who will ship in small quanities )

Replacing sheaves on old boats is a routine maintenance thing. The deck location of your block leaves no issue with clearance of pin and nut. So here is opportunity to become old boat mechanic by replacing sheave.

As to replacement sheaves, a brass sheave can be obtained from many Ace hardware stores. Ace also sells general purpose blocks with sheaves held in place by of all things a cleavis pin. This might work if you are not a prudish nautical fanatic requiring utmost nautical appearances.

I have been watching an older guy with a boat that just floats. It is an old sailboat that is that he paints by hand. He uses cheap placstic blocks from Lowe's from the clothes line area. The truely nautical guys are severly critical of his running rigging. However, he has been using those cheap things for over two years now and I have yet to see a failure.

Ed K
26

Have you checked with Rudy at D&R Marine? http://www.drmarine.com/
He may have one in stock. A lot of blocks on the O'Days were supplied by Schaeffer Marine. If you want to replace the sheave, you could drill out the old pin and replace it with a new sheave, a bolt and lock nut. I had to do that when I replaced my main halyard sheave on my mast, a couple of years ago. This year I had to replace my Jib sheave block. I'm not too fond of plastic sheaves. I've been replacing them with metal.

 

[Michel16055]

Re: Michel of Chazy

Michel,

As Joe said, the sheaves in blocks can be replaced. When drilling the pin out use a slow speed and cutting oil so as not to burn metal.

West Marine shows repleacment sheaves on page 653.

Joe mentioned using bolt and nut. What is called axle bolt is what is used. The tread can be cut back to correct length with die or made into clevis pin but drilling hole for cleavis ring is difficult.

Clevis pins are an alternative, if you find right diameter but having pin hole in correct location is again issue. I do not have a drill press with small parts clamp.

There are others who supply replacement sheaves including the original manufacturers of blocks. For example see:

http://www.dwyermast.com/items.asp?cat1ID=40&cat1Name=Hardware&familyID=25&familyName=Sheaves
( a small old line nautical supplier in Connecticut who will ship in small quanities )

Replacing sheaves on old boats is a routine maintenance thing. The deck location of your block leaves no issue with clearance of pin and nut. So here is opportunity to become old boat mechanic by replacing sheave.

As to replacement sheaves, a brass sheave can be obtained from many Ace hardware stores. Ace also sells general purpose blocks with sheaves held in place by of all things a cleavis pin. This might work if you are not a prudish nautical fanatic requiring utmost nautical appearances.

I have been watching an older guy with a boat that just floats. It is an old sailboat that is that he paints by hand. He uses cheap placstic blocks from Lowe's from the clothes line area. The truely nautical guys are severly critical of his running rigging. However, he has been using those cheap things for over two years now and I have yet to see a failure.

Ed K
26

Thanks for the replies guys.
I drilled and was amazed at how easy it was.
And I also learned that the part that is broken is called a "sheave".
Looking forward to replacing it this week.
Thanks Again
Michel
~~~_/)~~~