Re: 1970 L/78 Nova brake valve setup question
 

OK Tom,

Let-er rip.

Re: 1970 L/78 Nova brake valve setup question
 

That's the general setup, but something doesn't look quite right. I'm going from memory here, but I believe there should be a plated steel bracket that holds the proportioning valve to the booster stud. I'm not sure how the one in the pic is attached. Also, make sure you use a m/c with dual bleeders, painted black.

Re: 1970 L/78 Nova brake valve setup question
 

The bracket is there is the pic.but not seen at that angle.I have the M/C with the dual bleeder,But painted black?

Re: 1970 L/78 Nova brake valve setup question
 

Black.

Re: 1970 L/78 Nova brake valve setup question
 

Pictures below of Jack Seymours unmolested, survivor 70 Z-28 with SAME parts you are refering to. Also pic of Dale R's ORIGINAL owner 70 L-34 Camaro showing black M.C.
M.C. lid should also be Yellow Zinc and Hold Down bail was natural steel (but most restorers paint with "natural" stainless steel paint)

L-shaped bracket swedged to brass valve should be Yellow Zinc DiChromate plated, as well as curved shaped bracket supporting Unpainted Cast Iron prop valve.
All the special locking nuts securing M.C. to booster and Booster to Firewall are Clear Zinc (silver) plated.

http://img.photobucket.com/albums/v4...ake1Master.jpg
http://img.photobucket.com/albums/v4...ils/Brake4.jpg
http://img.photobucket.com/albums/v4...ails/Eng15.jpg
http://img.photobucket.com/albums/v4...ails/Eng16.jpg
http://img.photobucket.com/albums/v4...ils/Roosen.jpg

Re: 1970 L/78 Nova brake valve setup question
 

What is a good paint to use (spray bomb) for the Black M/C.? Thanks

Re: 1970 L/78 Nova brake valve setup question
 

Also, what is the generally accepted practice of preserving a freshly yellow zinc coated booster.? clear it.? boeshield it.? nothing .? Thanks again

Re: 1970 L/78 Nova brake valve setup question
 

The only paint that will hold up to the brake fluid is POR 15.And for the booster I just keep it wiped down with Super Lube.

Re: 1970 L/78 Nova brake valve setup question
 

Try turning it around and using silicone brake fluid...then you don't risk damaging paint or plating...we use it on all the restored cars...

wilma https://www.yenko.net/ubbthreads/imag...lins/beers.gif

Re: 1970 L/78 Nova brake valve setup question
 

Some semi black spray bomb choices are KRYLON 1613, RUSTOLEUM 7777, etc etc.........

I would think any of the GOOD Rust Inhibiting sprays on Yellow Zinc.........used consistently would help the plating survive........(I am NOT a fan of WD-40, versus BoeShield, Fluid Film, etc)