New (but correct) MC - painted black, bare, or ?

[bcmiller]

Awesome.  Thanks Jon for posting those pics!

[Jon Mello]

You're welcome, Bryon.

[KurtS]

And it's either a cheap black paint or poor prep, but the paint quickly 'fails'.
Few survivors have it - mostly Corvairs where it's in the trunk.

[bcmiller]

I think I remember JohnZ posting that it was the cheapest black paint they could get.

[68camaroz28]

The for sure survivors I've looked at have had the master cylinder painted. According to the latest new addition NCRS 68/69judging manual it states the following: "The master cylinder was painted a low-gloss or foundry black. A semi-circular machined area at the front of the casting was machined after painting and so should be natural finish. The flat at the front has PG stamped in it for power brake units and DC for manual brake units." And "The boss that the brake lines thread into is machined flat after painting and will be natural finish." JohnZ has stated “I was there in the assembly plants in the 60's, and Delco-Moraine painted the master cylinders and brake calipers black prior to machining; I never saw one unpainted.”
I purchased a late May69 power booster/master cylinder from Jere Stahl that had been given to him from Delco Moraine Engineering. On the production parts list sheet it calls for it to be painted black (see item 24).

Should have added pictures of the master cylinder of the power booster/master cylinder assembly I purchased from Stahl's when they were going out of business. The unit sent from the Delco Remy Engineering Group to Stahl's (Jere RIP) appears to be what they were going to use for 1969 model year and again the paperwork is dated end of May 1968. The paint is so bad it seems like it just rubbed off in some areas just from handling/moving over the years. This is a great example as its how it would have been put on back in the day.



Note there is not stamp on the machined pad and the other #'s stamped on have to do with engineering info also on the paperwork attached to the assembly.

[BULLITT65]

I purchased a late May69 power booster/master cylinder from Jere Stahl that had been given to him from Delco Moraine Engineering. On the production parts list sheet it calls for it to be painted black (see item 24).

(Should be noted as item 26)

[luv2sixty9]

Paul

1968RSZ28,
Is this a restored car or an original 1968 photo? The reason I'm asking is because the ink stamp on the diverter valve and also the battery doesn't appear to have the ENERGIZER wording and the lack of yellow paint on the DELCO.

[1968RSZ28]

1968RSZ28,
Is this a restored car or an original 1968 photo? The reason I'm asking is because the ink stamp on the diverter valve and also the battery doesn't appear to have the ENERGIZER wording and the lack of yellow paint on the DELCO.

It's a photo from GM of a brand new '68 Z28. The date of the photo is unknown, but the date on the fan shroud is 12-9-67.

Paul

[68camaroz28]

Paul

1968RSZ28,
Is this a restored car or an original 1968 photo? The reason I'm asking is because the ink stamp on the diverter valve and also the battery doesn't appear to have the ENERGIZER wording and the lack of yellow paint on the DELCO.

That is an original picture as far as I know Dave. I believe that battery has the "energizer" wording but due to the angle of the picture its not seen. Also, from what I've learned IMHO the Y55 & Y77 batteries did not have yellow lettering from the factory but service replacements did like this one. The Y55 in our 68Z I left the yellow script on for now as it looks crisp and nice but its coming off.

[luv2sixty9]

So thats two issues that I need to research / address....Thanxs

[BULLITT65]

I would also add that your pics from Skips 69Z with the original battery, did not have any yellow on delco or energizer. So without the yellow, would be assembly line correct. So I agree that it looks like a factory photo, and would be fresh off the assembly line.

[luv2sixty9]

Chick,
It could be from the angle, but then again maybe not. It appears to have enough space under the EL to possibly see some part of the ENERGIZER......IDK