Citrus green 1970 z28 restoration thread

Discussion in 'Project Progress' started by Rosster, Oct 25, 2020.

  1. Rosster

    Rosster Veteran Member Gold Member

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    Master cylinder is pretty crusty but after glass beading it and honing the bore everything looks reusable. Sadly no one carries rebuild kits anymore so had to order online. The cover and bail were original and the cover was pretty rusty. After blasting and re-plating, I tried the yellow chromate kit I bought from caswell. Worked perfect but as you can see, the pitting is very visible.anyone know a way to fill pits so that it can be replated?

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  2. Rosster

    Rosster Veteran Member Gold Member

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    Finally got the car on the rotisserie so I can get down to business on the underside. I bought the universal mounting kit with the rotisserie which really was all I needed to fab rear spring mount brackets. My SIL brought his mig welder down and we fabbed up everything quickly.

    Still deciding if I want to get it blasted or spend time with a wire wheel and grinding discs. The rust is concentrated on the rear 1/3 of the car so don’t need to do everything on the underside just the forward rear wheelwell back. I’m going to need to repair the trunk dropoffs and bottom rear of fenders so was hoping to leave most of the interior intact. My next step is to remove everything sitting on top of car and in the trunk so I can determine balance point. And rotate her 90 degrees.

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  3. FlaJunkie

    FlaJunkie Veteran Member Lifetime Gold Member

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    I love your wife's pensive look...wonder what she is thinking?
     
  4. FlaJunkie

    FlaJunkie Veteran Member Lifetime Gold Member

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    I use 93 pump plus booster. I also add a stabilizer because of the ethanol.
    Occasionally, I'll put 100 Sunoco unleaded.
     
  5. FlaJunkie

    FlaJunkie Veteran Member Lifetime Gold Member

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    When I was stationed out at Monterey in 1972, I had point float. I went to the local NAPA dealer and asked about a substitute.

    He recommended Echlin CS-89. At the time, it was a Chevy V8 racing boat motor part. I bought a set and bottomed the tach. They still sell them; I will use them today if I ever finish rebuilding my distributor.
     
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  6. COPO

    COPO Veteran Member Lifetime Gold Member

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    Napa sells Reman’d Delco 409 master cyl with the 2 bleeders, but they are not sleeved and leak. I found a place about 1 hr from me that will sleeve my orig M/C and rebuild my Smog Pump. Just waiting Covid to settle down.
     
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  7. Rosster

    Rosster Veteran Member Gold Member

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    Yeah she thought it would be cool to put our 3yr old granddaughter in the car and take a few pics. Then when I’m finished, take another one. She did snidely say “it will probably be her highschool grad pic” by the time you finish!
     
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  8. Rosster

    Rosster Veteran Member Gold Member

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    Finished rebuilding master cylinder the other day. Wasn’t paying attention when removing brass seats and got hung up as the kit comes with a residual check valve that is supposed to go into the drum brake outlet. Didn’t know if I dropped the parts or if they were never installed. After some less than fruitful research, I finally figured out that the 70 camaro has a downstream residual valve which sits on a bracket along with the distribution and proportioning valve assy. So, no check valves in the m/c body. Kind of a weird design that isn't used by many. Will paint with eastwood cast iron brake resistant paint when it arrives and check it off the completed list.

    I talked with the owner of brakeboosters dot come about rebuilding/refinishing the booster and various parts. Great guy that also owns a 70 z28! Mine is original and pretty crusty but he definitely works some magic on these parts so they work/look just like new. I’ll box stuff up tomorrow and ship.

    Also after much deliberation, I ordered the eaton ML1061 leaf springs. These seem to be the best option as to stock ride height and appearance. Thanks again to members here for pics and info! Once they come I’ll refinish them to appear original as well as stencil the proper markings.

    this next week I’m focused on inspecting, resealing, and refinishing the rear axle.....

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  9. Rosster

    Rosster Veteran Member Gold Member

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    Finished up welding in the frame mount washers so now have to grind it all flush and get ready to throw some paint on.

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  10. Rosster

    Rosster Veteran Member Gold Member

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    Springs arrived! They look to be an exact match for the originals even down to the leaf spring clamps. Also removed the ball joints from A-arms as the bottoms were too worn to reuse. Unfortunately they don’t make a proper reproduction (with the tab) and I’ve found zilch NOS parts on ebay to replace them so went with mevotech as they most closely resemble the original design. I did order the rivet look bolts to mount the upper ball joint too. image.jpg
     
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