Brake caliper bleeder screw hole is too large? Why?

[Lordofthepings777]

Recently I pulled my seized brake calipers off my 73 Newport. I found quickly you can’t buy replacements, so I was stuck with a few options:

#1- buy used and hope they aren’t seized

#2- send mine off to get fixed for about $160 each plus shipping

#3- attempt to fix mine by soaking in vinegar to loosen up the rust and replace gaskets+pistons for less than $30.

I ended up going with option 3, and soaked them for about a week to a week and a half. One of them, however, after being taken out has a slight issue. The bleeder valve hole… seems to be too big to screw even a brand new bleeder screw into! Why might this be? And is there any way to fix this? I mean- I thought maybe there was some sort of adapter on it and I just lost it, but it’s only barely too big for my bleeder screw to fit. Maybe like 1/16 of an inch or something bigger, so I don’t think there was ever an adapter.

I left some photos for reference, and the other one was not like this. Any advice here would be great, OR alternatively if there is no saving this brake caliper I would be open to buying any Chrysler 69-73 drivers side brake caliper from part cars. Let me know. Thank you!

 

[sprice]

Did you remove the bleeder screw from this hole? The third picture some semblance of threads. The first picture seems to illustrate a hole through to the table.

 

[Davea Lux]

Sometimes, a rebuilder, they would use an oversized bleeder screw if the hole was stripped out. While it fixed the immediate problem it left a "bonus" for the next poor sob who needed to replace the bleeder screw. If you have the bleeder screw that came out, you might be able to use a die to get the thread count and size to try and source a screw that will fit the hole.

Dave

 

[Big_John]

You could fit an oversize bleeder like this one. https://www.amazon.com/Dorman-13960-Brake-Bleeder-Repair/dp/B000CO76PQ

I'm not sure if that's the right one to get, but it looks to me like it's just drill and tap for the new fitting.

 

[Lordofthepings777]

You could fit an oversize bleeder like this one. https://www.amazon.com/Dorman-13960-Brake-Bleeder-Repair/dp/B000CO76PQ

I'm not sure if that's the right one to get, but it looks to me like it's just drill and tap for the new fitting.

I appreciate it! I’ll look into this solution. I was thinking about retapping the hole just with a bigger size and an adapter myself, so I’m glad they make these!