I am working with old barrent winches I have a pair of 32 s/t that have some significant ware on the slots the Paws drop into. I serviced the winches over the weekend. (One is so bad the paw is no longer retained in the slot, when the winch is apart. ) What is the best way to fix this problem? do we have a shop braze more brass on to the slot and re-cut it? can we cut new paw slots at 90 degrees to the old slots? (we have access to a machine shop to do the work, but really don't want to have to cut a new cog/with paw slots if we don't have to) Since the season starts in just over six weeks, i have some time to get this fixed, but I need some advice on the best way to get this done.
Winch Repair
- Thread starter ftbinc
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Foolish
Super Anarchist
Don't bother filling in the old slots. You are better to just cut new slots into the winches. They don't need to be at 90 degrees to the old slots, so long as they are directly opposite to each other. Give yourself lots of space in case you screw up the first and second time. (I speak from experience).
You really do need to be VERY careful in the size and position of the new slots. It is likely that your old winch is not perfectly round, so it takes some work to get it right. Don't rush. Take a lot of time and measurements to make sure they are exactly where you want them. You need a precise milling machine to measure exactly.
You really do need to be VERY careful in the size and position of the new slots. It is likely that your old winch is not perfectly round, so it takes some work to get it right. Don't rush. Take a lot of time and measurements to make sure they are exactly where you want them. You need a precise milling machine to measure exactly.
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Considering that the pawls are the only thing that keeps the winch from spinning backwards, I would recommend you replace the winch.
We tried doing a similar thing on a pair of 22's, and the voids in the casting were too bad to try and make an effective and reliable repair.
Bam Miller
We tried doing a similar thing on a pair of 22's, and the voids in the casting were too bad to try and make an effective and reliable repair.
Bam Miller
Gouvernail
Lottsa people don’t know I’m famous
Moonduster
Super Anarchist
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Ish,
Two really is the customary number for breasts ... or tits as you like to call them.
Two really is the customary number for breasts ... or tits as you like to call them.
I like two. I was speaking in terms of more visibility, not more quantity. Breasts sounds so formal.
Get some tube (brass, stainless etc.) with an id that matches the final pawl pivot hole id. Then with a milling machine, center a bit (which measures a few thousandths under the od of the tube you've procured) over the old pawl slot hole. Bore to full depth. press in sections of tube. Personally to open up the slots for the pawl arm i then chuck and true the drum in a lathe and remove the sleeve where it protrudes into the drum. Not sure if this makes sense as ive written it but my boats got 16 barients of various flavors and ive rebuilt the majority of them. If you can afford it, from a safety standpoint best to replace the winch...
Kraftwerk
Member
Can you post a picture of your winch opened up?
- Thread starter
- #12
I will post a picture when I have the part re-cut and ready to go back in the winch and a picture of the winch as i am putting it back together. (I re-assembled it, sans the part being worked on, to keep the parts in the right positions so I can put it back together without having to open up the other winch to see how it goes back together.)
Kind of depends of the species, doesn't it?
Four is interesting...
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Foolish
Super Anarchist
Here you can see the original pawl slots and my first and second failed attempts at cutting new slots. I got it right the third time.
On the second winch I got it right the first time. Both of these winches have worked perfectly for 4 years since the repair.
Go for it!
On the second winch I got it right the first time. Both of these winches have worked perfectly for 4 years since the repair.
Go for it!
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http://www.youtube.com/watch?v=EiylTqSAiaM
There's something about bilateral symmetry that just works.
Nice job, Foolish. I never would have thunk of that.
He did do a nice hob with this, didn't he!
Foolish, how did you do that?
This is Fix-It Anarchy - do tell!
- Thread starter
- #17
Here is a picture of the repair we made! It looks pretty good.
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Nice job. The old slots did not look all that worn (at least compared to a couple of winches on my boat).
