What to do about replacing "blocks"

[Costy]

So I am looking @ the existing blocks and none of them look usable, I would like to replace them all but I think I can remanufacture them if I can find replacement parts.
Does any one know where I can find parts for the blocks that are reasonable? I would like to fix the existing ones until I put the boat on the water and see if it floats before I spend lots of money for blocks and new/used sails.Talking about the sails main has rips in them so I am thinking "sail tape" until after the first trip out (again to see if the boat takes in water or not).
Thanks for your help, Costy
1978 21' Mac.

 

[Justin_NSA]

Do you mean rebuild them? Are you looking for replacement sheaves? I think the OEM hardware is Garhauer or Scheafer. Try someplace like Defender
.

 

[Merlin Clark]

So I am looking @ the existing blocks and none of them look usable, I would like to replace them all but I think I can remanufacture them if I can find replacement parts.
Does any one know where I can find parts for the blocks that are reasonable? I would like to fix the existing ones until I put the boat on the water and see if it floats before I spend lots of money for blocks and new/used sails.Talking about the sails main has rips in them so I am thinking "sail tape" until after the first trip out (again to see if the boat takes in water or not).
Thanks for your help, Costy
1978 21' Mac.

I sent you a PM.

 

[timebandit]

I got replacement sheves for the main block from West Marine, they were just loose in some boxes around the rope area, different sizes for just a couple of bucks.

 

[Costy]

Did you driled out the center of the block to replace the shave?

 

[timebandit]

It has been awhile but I think I did and then used a screw that went through the sheave and into the mast for extra strength.

Did you driled out the center of the block to replace the shave?

 

[Costy]

Thanks, I was thinking of doing the same. I spent all day (again) on the trailer and it is done. I lowered the keel and sand it out completely primed and next week paint it.
I am thinking to go for 3/8 line instead of 1/2 inch do you think it is wise? I find blocks and line to be cheaper in 3/8.
I am also thinking of taking off all the bolts and nuts and re setting them using the 3M 4200
since the previous owner used a lot of silicone all over the place around the nuts and bolts.
I should be ready to go on the water by next year LOL, perhaps I am doing too much but that is the way I am just can't do half jobs.
The sad part is that I am spending more time with the boat than with my wife..

Thanks for all your help.
Costy

 

[Timo42]

You can easily run 5/16 halyards, 1/4" or 5/16" jib sheets, maybe run 3/8" main sheet because it's easier on the hands. I have my old main sail with a blown out headboard, kinda baggy , but otherwise in good shape and a few older but servicable blocks if you want them, along with a mast crutch and some other stuff I don't need, pm me.

 

[centerline]

You can easily run 5/16 halyards, 1/4" or 5/16" jib sheets, maybe run 3/8" main sheet because it's easier on the hands. I have my old main sail with a blown out headboard, kinda baggy , but otherwise in good shape and a few older but servicable blocks if you want them, along with a mast crutch and some other stuff I don't need, pm me.

so the 5/16 sounds like a good option for this size of boat.... does that go for all the lines?...... such as the boom vang. I also want to rig a topping lift and i was wondering what size of line i should use there..... Maybe I should just buy a spool of 5/16 and do away with all the 3/8 the PO has on it....

 

[Timo42]

I like Sta-set for sheets, Sta-set X for halyards(overkill I know) and different colors as much as possible for everything, with a jib or genoa halyard, downhaul, and 2 sheets, spinnaker halyard and 2 sheets, spinnaker pole uphaul and downhaul, main halyard, main sheet and traveller, outhaul, boomvang, topping lift, and backstay adjuster...it gets complicated. I use everything from 1/8" to 3/8", mostly 5/16". It's easier to tell someone to "release the red line, than to say release the genoa sheet.

 

[Costy]

Main sail with a blow out head board? I think I know which the main sail is but I did not know that it has a headboard. The main sail I got with the boat has two rips in it that I was going to repair with sail Tape (for now) so I can put this thing in the water soon.

 

[Timo42]

The plastic triangle at the top of the sail with the ring that you attach the halyard to, cheap to fix, probably in better shape than what you have.