ConcoursMustang Forums
1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1964 1/2 - 1965 => Topic started by: 65fastbk on November 27, 2013, 03:08:19 PM
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Hi,
Im trying to determine if my MC is original or correct for my car. Its a 1965 San Jose built car (July). Are there any markings to identify it? Im trying to determine on wether to rebuild it or by an aftermarket one.
Thanks!!
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The main distinguishing aspect is the fact that it has the brass adapter which indicates it is most likely original. The Master cylinders starting sometime in early 66 production changed over to having a flare fitting made into the master so as to do away with the adapter. That type of early masters are hard to find. because it was just one year and all replacement made after that were the 66 style. It is highly likely that it has not been replaced for that reason.
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Thanks Bob, is it worth rebuilding it or just getting an aftermarket replacement and saving the original? Do you know of any good rebuilders.
Thanks again!!
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Worth rebuilding because of historical significance but much cheaper to buy after market .Sorry don't have a recommend on a rebuilder.
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The current new disc brake master cylinders (at least the ones we have) have the tube seats built in like the later '66 units, so if you want to retain this detail, you may want to have that one rebuilt.
(http://www.virginiaclassicmustang.com/Assets/ProductImages/bk118.jpg) (http://www.virginiaclassicmustang.com/65-66-DISC-BRAKE-MASTER-CYLINDER-P268.aspx)
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Ah I see, thanks guys...decisions, decisions:) Oh last question...what color should it be, all black including the cover?
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Ah I see, thanks guys...decisions, decisions:) Oh last question...what color should it be, all black including the cover?
Yes,most typical.
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You might try a local brake repair facility and see what they offer. Do some net searches for endorsements, both kinds. I've used this shop in San Jose, CA a couple of times with good results.
http://pwrbrake.com/Locations.html
You need to tell any brake shop that you want a rebuild, not a replacement.
Jim
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Thanks Jim,
I actually had some calipers rebuilt there for a different car, but haven't put them on yet....So you were happy with your results?
Thanks!
You might try a local brake repair facility and see what they offer. Do some net searches for endorsements, both kinds. I've used this shop in San Jose, CA a couple of times with good results.
http://pwrbrake.com/Locations.html
You need to tell any brake shop that you want a rebuild, not a replacement.
Jim
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The main distinguishing aspect is the fact that it has the brass adapter which indicates it is most likely original. The Master cylinders starting sometime in early 66 production changed over to having a flare fitting made into the master so as to do away with the adapter. That type of early masters are hard to find. because it was just one year and all replacement made after that were the 66 style. It is highly likely that it has not been replaced for that reason.
Great info! :) Thanks.
Looks like my 65 still has an original MC.
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I just pulled it off and the numbers on the bottom reads:
618967 and next to it the Bendix "B"
Date code is weird, looks like 270 or 273? Could this be correct for a 65 mustang? How many years did they make them with the brass flares attached?
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I just pulled it off and the numbers on the bottom reads:
618967 and next to it the Bendix "B"
Date code is weird, looks like 270 or 273? Could this be correct for a 65 mustang? How many years did they make them with the brass flares attached?
As mentioned in reply #1 changed over in early part of 66 production. No need to keep producing since the new style with the flare seat made into the Master would also fit the 65 model . There is enough flex in the lines to bridge the distance the brass adapter took up.
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I can do the rebuild on the master cylinder at my shop if you need help. Typically we do the later dual reservoir style but can do this as well. Contact me offline if interested.
The date code system that Bendix used was based on the Julian calendar....so from 001 to 365.
Nice to see an original like this.
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The numbers are different and I don't see the B for Bendix. What do I have here????
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The numbers are different and I don't see the B for Bendix. What do I have here????
The Bendix "B" trademark is visible in the picture between the 7 digit series and the 5. So you have a early Bendix master of the 65 early 66 variety needing the brass adapter ;) .
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I thought i would mention that although all of this talk about the numbers and date codes is very interesting,once installed the most important visibile aspect of the early master is the adapter. Even the Masters sold by Virginia pictured above are great and do not look out of place once sealed to the firewall and detailed with black semigloss. I think that NPD sells a brass flared adapter on both in and out so as to simlate the early style master if wanting to disguise a new replacement master on a 65 /early 66. The numbers and trademark on the bottom are extremly difficult to read once installed . The main thing is the correct look on a highly visable item like this IMO.
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Ahh, it helps when someone describes what you are looking at! ;D
Date code is Dec 23 for a schedule build of April 19 so I'm guessing it could be the original Master Cylinder.
Thanks. ;)
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Mine also has the 618967 number, a Bendix "B", followed by a "5". Cast in Julian date is 182, or July 1st. Has the brass adapters of an early piece as well.
Anyone know for sure if the "5" means 1965, or just a reference #?
Interesting info.
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Just to verify what I have, the 65 has a brass fitting top and bottom whereas the 66 no longer requires the adapter on the front (has the flare built into the master), but still requires the brass fitting on the bottom?
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Just to verify what I have, the 65 has a brass fitting top and bottom whereas the 66 no longer requires the adapter on the front (has the flare built into the master), but still requires the brass fitting on the bottom?
65 have fittings and 66 have no fittings at either brake port originally would refer to the master cylinder not the build date of the car from what I believe we have found and what I believe currently
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Master has front flare and the bottom looks like a 45 deg taper into master.
Pics
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FYI,I have seen evidence to suggest that the changeover wasn't specific to model year and that some early regular production 66 Mustangs used the brass adapters on both ports. It may have something to do with using up supplies or something else. It wasn't like the change interrupted anything given the brake lines will work with ether style.
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Have had an ongoing page in my spread sheet attempting to track the relationship of the date, date coding style and the style of port to see what that tells us.
Like many things it takes time to collect the data