Weld or Braze Ratchet Pawl

[sometoyotaguy]

I picked up a older 1/2" Bonney US ratchet today at a yard sale.

Unfortunately, when I took it apart to clean it up, one of the pawls was broken.

Can I braze or Mig weld this?

 

[rsanter]

Doubt it. You may have some luck with silver solder. Welding I think you will find that the material will disappear or will be warped/shrunk beyond use

Bob

 

[CJM8515]

Would be better served paying a machine shop to make the part or finding a rebuild kit maybe.

 

[fasteddie313]

no way it would be near as strong as original if "fixed"...

 

[ssdave]

No way a weld/braze repair would work and hold well. You'd be much better off making a new part. Or, much preferable to buy a rebuild kit or parts if you can find them.

If you want to repair yourself, buy a piece of tool steel the correct thickness, use a dremel tool and cutoff wheels to rough out the outline, file to shape. Probably a 2 hour job, maximum if you have any skill at all at this. If you have access to a drill press, you can drill numerous 1/16" dia holes along the outline and get a big jump start on the cutout. Or, if you have access to a vertical mill, you can scribe the outline, freehand out the outline, and then refine it. I've made numerous parts like this freehand on the mill. Not really cost effective for a $20 ratchet, though.

good luck!

dave

 

[Carla]

No way a weld/braze repair would work and hold well. You'd be much better off making a new part. Or, much preferable to buy a rebuild kit or parts if you can find them.

If you want to repair yourself, buy a piece of tool steel the correct thickness, use a dremel tool and cutoff wheels to rough out the outline, file to shape. Probably a 2 hour job, maximum if you have any skill at all at this. If you have access to a drill press, you can drill numerous 1/16" dia holes along the outline and get a big jump start on the cutout. Or, if you have access to a vertical mill, you can scribe the outline, freehand out the outline, and then refine it. I've made numerous parts like this freehand on the mill. Not really cost effective for a $20 ratchet, though.

good luck!

dave

Concur......then remember that it has to be a heat-treated steel, preferably something like 4140, to withstand the loadings it would see in use.

In short, unless a 'repair kit' is available somewhere, its just not cost-effective to repair.

If you want to take up the project as a 'hobby challenge', mill the part from a scrap truck axle, which would be suitably good steel, albeit not so easy to machine......but it is 'do-able' if you are sufficiently determined.

cheers

Carla

 

[bonneyman]

Picture and model # of the Bonney rat in question? I might have a pawl buried in my ratchet stash.

 

[sometoyotaguy]

This is all I took for pics. I can get more of the internals if that helps. Thanks for the offer of looking in your parts stash.

 

[garthg]

If this is a tool to use it's not worth the effort. You can get a very decent Snap on 1/2" ratchet on ebay for less than $30. Why bother, unless it's for a museum?

 

[garthg]

I can't see the reason to bother fixing it when you can get this instead ($27.11 last bid; 1988 date code by the way):

http://www.ebay.com/itm/Snap-On-Ratchet-1-2-S832-chrome-Ratchet-snapon-hard-Handle-works-great-10-1-4/181749072024?_trksid=p3693.c100102.m2452&_trkparms=aid%3D333008%26algo%3DRIC.MBE%26ao%3D1%26asc%3D20140212121249%26meid%3D22376920f4b64f8c8c5f6f44c7ef2c9d%26pid%3D100102%26rk%3D3%26rkt%3D4%26sd%3D191580143739

 

[bodyguy16]

It wont hurt to try, as stated before if you can get it together strengh will be an issue. I say try it!

 

[sometoyotaguy]

I'll give it a try unless I can come up with some parts. It was a cheap enough, but seems like a decent ratchet otherwise.

 

[Greasymofo]

Yeah go for it man, its worth a shot.. I too hate to see tools not being able to be used because of a minor fixable part

 

[sometoyotaguy]

Now I'm confused? Two different ratchets in your pics? The third pic is a Kilness patent Husky CB-45 made by New Britain. Is you Bonney ratchet also a Kilness patent mechanism?

You're right. I mixed up the pics. There was another ratchet that I bought at the same time. Sorry about that.

More pics to come.

 

[zkling]

Just for kicks I might try some good epoxy and see what happens. Doubt it will work with much torque but, what do you have to loose at this point?

I feel as if I have seen that pawl design in a few different ratchets. Maybe you can source from a few different brands

 

[SCscoutguy]

I wonder if any one here on the GJ has access to a laser CNC machine? I bet one of those could make you one of these real quick.

 

[bodyguy16]

I wonder if any one here on the GJ has access to a laser CNC machine? I bet one of those could make you one of these real quick.

More than likely, BUT at what cost and of course one would either have to volounteer his/her time to design and machine the part. We have some generous members on here so you never know but i would stick to trying to repair before wishing upon one to machine a new one.

 

[bonneyman]

Ahh, the -702 series ratchet. Double pawl design.

Let me see if I have a spare pawl laying around.

 

[garthg]

Yeah go for it man, its worth a shot.. I too hate to see tools not being able to be used because of a minor fixable part

It's not a minor part. It's not a ratchet without a pawl.

I say better luck next time in your treasure hunting.