Delco Morraine master cylinders painting

[Keith B.]

There is much debate on a Chevelle forum I visit about the correct appearance on assembly line master cylinders on GM cars and more on Chevelle / A-body ones. One group says they were painted like the NCRS manual states for Corvettes with notations of many low mile original cars having cars with painted m/c and even a drawing for one showing paint as a process. anther side is from a person who states a person who worked at GM assembly plant stating the m/c was natural. Is there any supporting information on this

[Joe L.]

Re: Delco Morraine master cylinders painting

There is much debate on a Chevelle forum I visit about the correct appearance on assembly line master cylinders on GM cars and more on Chevelle / A-body ones. One group says they were painted like the NCRS manual states for Corvettes with notations of many low mile original cars having cars with painted m/c and even a drawing for one showing paint as a process. anther side is from a person who states a person who worked at GM assembly plant stating the m/c was natural. Is there any supporting information on this

Keith------


All I can tell you is that the original master cylinder on my original owner 1969 was painted a low gloss black. That's for absolute certain. On the other hand, most SERVICE master cylinders I have seen were un-painted. It may be that later in the C3 era the painted master cylinders ceased.

[Terry M.]

Re: Delco Morraine master cylinders painting

Keith

I can tell you that 1968 to 1972 Corvette Master cylinders were painted as Joe L describes before machining. That is based on the observation of many low-mileage unmolested Corvettes.

I can't imagine why any other GM car line would be different, but stranger things have happened. Doesn't anyone have an unmolested Chevelle, or is that a Unicorn?

[Joe L.]

Re: Delco Morraine master cylinders painting

Keith

I can tell you that 1968 to 1972 Corvette Master cylinders were painted as Joe L describes before machining. That is based on the observation of many low-mileage unmolested Corvettes.

I can't imagine why any other GM car line would be different, but stranger things have happened. Doesn't anyone have an unmolested Chevelle, or is that a Unicorn?

Terry------


Yes, machined surfaces were bare metal as was the portion of the master cylinder from the rear of the firewall flange.

[Keith B.]

Re: Delco Morraine master cylinders painting

Keith


I can't imagine why any other GM car line would be different, but stranger things have happened. Doesn't anyone have an unmolested Chevelle, or is that a Unicorn?

there are but to some unrestored is not good enough proof

[Terry M.]

Re: Delco Morraine master cylinders painting

there are but to some unrestored is not good enough proof

There is no way to correct that attitude.

[Richard F.]

Re: Delco Morraine master cylinders painting

I am the original owner of a 19,000 mi. 1974 Corvette, untouched master cylinder is (with original paint) is low gloss black.

[Ron G.]

Re: Delco Morraine master cylinders painting

Absolutely no doubt they were painted a low gloss black from the factory just like Joe L. and Terry M. made mentioned. GM replacements were always natural. Also, don't forget the flat surfaces where the code, date, and brake lines went into were natural. I cannot speak for Chevelle's and other GM models, but as someone in a prior reply to mine indicated, why would the process be any different.