Safe line master cylinder?

[weirdbeard]

The 67 Imperial master cylinder was leaking and since it was a replaced one already I ordered one new from Napa. Of course after installing it I discovered it was defective. I tried getting a replacement only to find out they are no longer manufactured. It wasn’t even a month later!
After many phone calls and vendor checks, I called AMS Obsolete out of Fairmount Ga. They have a new Safe Line brand made in U.S.A. but I don’t know anything about them. I just need a quality master cylinder for the Imp.

 

[67Monaco]

You can't find a Raybestos master?

 

[weirdbeard]

No. Centric seems to be the most available.

 

[mrfury68]

Try Craig @ mobile parts. I bought a new Centric from him last year at Carlisle.

 

[PH27L7]

I had 2 failures of aftermarket MC's on my Budd equipped 67. I disassembled them & both had longitudinal machining scratches in the bores. Apparently some kind of manufacturing screw up, the fact that 2 of them had the same problem was likely not coincidence. It might have been possible to hone the scratch out but instead I rebuilt my original unit which actually never failed but was crusty. I had a place called Karps install a SS sleeve (there are others that do this) & rebuilt it using a Raybestos kit (obsolete). You can also find NOS rebuild kits occasionally. Not the cheapest way to do it but I've had zero problems since & I figure you shouldn't skimp on brake parts. One scary incident of the brake pedal going to the floor on a steep hill (with another car on my bumper) convinced me of that.

One other thing, the original M/C casting has a different shape than the aftermarket ones and the covers do not interchange.

 

[weirdbeard]

I did locate a Raybestos and a Wagner on eBay but they’re listed for 1970 and up. Not sure if anything else is compatible or if this is another Imperial only thing.
The Napa mc I just installed had the bottom piston replacement screw stripped from the factory and the lid leaks. I just want a quality one. The year of the Imp doesn’t help.

 

[weirdbeard]

I just read on the Imperial club site that a 1974 Newport mc will replace a 67-68 Imperial one. Sounds like it’s a little bigger but bolts right up. Anyone experimented with interchanging mc’s?

 

[PH27L7]

Believe Centric is the only only game in town if you want new. You may find some old replacement stock or even NOS. NOS goes for big $ because it looks similar to those used on hemi cars. Critical dimension is the 1-1/8" bore. Some other MC's may fit with minor line mods due to varying widths. Good luck.

 

[Dan Scully]

This is one place that can rebuild it , and stainless sleeve it if needed in the bore. There other places but I have used karps with great results. Sometimes better to rebuild yours.

Welcome to Karps Brake Service

 

[mopar440]

I know the frustration. I ended up rebuilding the new one, torn seal in it

 

[weirdbeard]

I believe the cast is bad. Stripped threads underneath and the lid won’t seal. The one I took off was leaking at the booster. It was a Wagner I should have looked into rebuilding.

 

[PH27L7]

I believe the cast is bad. Stripped threads underneath and the lid won’t seal. The one I took off was leaking at the booster. It was a Wagner I should have looked into rebuilding.

I did save one of the aftermarket castings, nothing wrong with it except machine work. $15 + shipping. Will throw in the cover/ gasket.

 

[weirdbeard]

I did save one of the aftermarket castings, nothing wrong with it except machine work. $15 + shipping. Will throw in the cover/ gasket.

I will keep that in mind. Thanks!

 

[67Monaco]

Going with this is a disc car for now. This is the same one NAPA offers for both the 67 C's and the Imperial. It's USA made if I don't mis-remember it actually came in a Raybestos box.

https://www.napaonline.com/en/p/NMA...+Master+Cylinder&keywordInput=master+cylinder

 

[weirdbeard]

Going with this is a disc car for now. This is the same one NAPA offers for both the 67 C's and the Imperial. It's USA made if I don't mis-remember it actually came in a Raybestos box.

https://www.napaonline.com/en/p/NMA...+Master+Cylinder&keywordInput=master+cylinder

This is the exact one that I bought and installed that was defective. Came in a Napa box and didn’t say made in USA anywhere that I could see. This is no longer manufactured or available.
As you said, if they offered this for “C” bodies and Imperials I should have more options that will fit. I’m going to investigate and pay close attention to bore and fitting size of different models.

 

[weirdbeard]

After some investigation with Napa, I ordered a master cylinder for a 74 Newport. Everything is identical except it looks a little taller and the bore size is 1 1/32“ instead of 1 1/8.” I also may need a 9/16-20 to 9/16-18 adapter for the one fitting. It might actually be the same one that’s on my 72 Newport.