need to know alloy that 69 combo swtch/brake proportioning vlve made of

[Squanto]

Does anybody with heavy duty credibility care to tell me what alloy the combination switch/brake proportioning valve is made of ? This component that I'm inquiring about is in the 1969 coupe.

 

[Vettehead Mikey]

I'm 99% sure I know what the valve body alloy is, but pretty sure I don't have the level of credibility you're looking for.

 

[JohnZ]

They made 20,000 of them every day, so I doubt if it's anything exotic - sure looks like cast iron to me; same material as master cylinders and calipers.

 

[White75]

if a magnet attaches to it, it's iron. if not, good chance it's aluminum

 

[Vettehead Mikey]

My eyes and the '69 judging manual say brass.

 

[JohnZ]

It's cast iron on 67's - dunno about C3's.

 

[Vettehead Mikey]

Maybe Axle Whitehead knows:

http://www.corvetteactioncenter.com...ital-after-scalding-accident.html#post1008406

Maybe not, he'd probably lose a finger opening the hood otfl

 

[6880 Mike]

My eyes and the '69 judging manual say brass.

Does that meet the definition of "heavy duty credibility"?

:cool

 

[3dale1]

My eyes and the '69 judging manual say brass.

I vote for brass too.

 

[Vettehead Mikey]

Does that meet the definition of "heavy duty credibility"?

:cool

No, that's why I suggested going to Axle whatshisname. He's famous apparently.

 

[6880 Mike]

No, that's why I suggested going to Axle whatshisname. He's famous apparently.

I'm sure I'm supposed to know who Axle is, but -- alas -- I haven't a clue.

 

[JohnZ]

The exact same part was used on '67-8-9 Camaros, and it's cast iron too.

 

[Squanto]

1969 Combination switch/proportioning valve

Dudes... I regret that some of you aren't quite scopin with 20/20, but there is no way that this BRASS lookin switch/valve is composed of cast Iron.

Vettehead Mikey has quoted a source that seems to meet the critereon, Heavy Duty Credibility...QUOTE "the '69 judging manual say(s) brass". Would you be so kind as to write the bibliography(title,publisher,author(s)) paragraph that is inside the front cover and or tell me how/where I could get my very own copy of this manual? I have the courtroom blues & whatever I say I have to be able to verify... like, "See here on page 13, the '69 judging manual specifies 'BRASS combination valve of alloy XYZ, containing whatever percentages of this & that' Your Honor". The opposing lawyer has stated that this valve would be corroded with green film if my 1969 valve was actually an old 1969 valve. Well it IS & we all know that these valves do not corrode green, but my circumstances now demand that I prove this. Any help
would be appreciated. http://www.corvetteactioncenter.com/forums/images/smilies/buttslap.gif

 

[6880 Mike]

...I regret that some of you aren't quite scopin with 20/20...

We're fine.

...tell me how/where I could get my very own copy of this manual?...

National Corvette Restorers Society

 

[Vettehead Mikey]

Dudes... I regret that some of you aren't quite scopin with 20/20, but there is no way that this BRASS lookin switch/valve is composed of cast Iron.

Vettehead Mikey has quoted a source that seems to meet the critereon, Heavy Duty Credibility...QUOTE "the '69 judging manual say(s) brass". Would you be so kind as to write the bibliography(title,publisher,author(s)) paragraph that is inside the front cover and or tell me how/where I could get my very own copy of this manual? I have the courtroom blues & whatever I say I have to be able to verify... like, "See here on page 13, the '69 judging manual specifies 'BRASS combination valve of alloy XYZ, containing whatever percentages of this & that' Your Honor". The opposing lawyer has stated that this valve would be corroded with green film if my 1969 valve was actually an old 1969 valve. Well it IS & we all know that these valves do not corrode green, but my circumstances now demand that I prove this. Any help
would be appreciated. http://www.corvetteactioncenter.com/forums/images/smilies/buttslap.gif

People here are just trying to help, no need to be ungrateful. If you're looking for a precise analysis of the material, then that's far beyond the scope of the judging manual or any other document that I have access to.

Sounds like a very interesting court case, good luck.

 

[Squanto]

NOT ungrateful fellers but actually Grateful (Dead) Thanks

People here are just trying to help, no need to be ungrateful. If you're looking for a precise analysis of the material, then that's far beyond the scope of the judging manual or any other document that I have access to.

Sounds like a very interesting court case, good luck.

I appreciate your time & courtesy to reply folks...Just tryin to get the best for less. I agree, brass it appears to be; it may have some Zinc in it from the looks of it...I am trying to execute this goal directed pursuit.http://www.corvetteactioncenter.com/forums/images/smilies/beerchug.gif

 

[damoroso]

Dude,

They're brass, which is typically 67% copper and 33% zinc. Other metals are sometimes added including lead to make brass more workable by machine. Tin, arsenic, and antimony are sometimes added to resist corrosion, and iron can be added to make the brass harder and easier to forge. So these parts likely have some iron in them too. Knowing that blend or recipe precisely isn't going to be likely unless you have access to the manufacturing specifications. If you really want the precise alloy and it needs to be documented, take one to a metallurgist for analysis. I'd also suggest the alloy has likely changed since 1969 unless you find one that came off a 69 or is NOS.


Good luck though, it'd be interesting to hear how this works out.