Wednesday, April 8, 2015

Little Red Corvette Brake Project - Thank God Almighty, Finished At Last!


Four. Months. That's how long it took me to replace every rear brake part, with the exception of the left rear caliper, on Rockn77.

 
The fun began late last summer when I noticed this Rorschach test on my driveway. That' power steering fluid that, luckily, washes off concrete.
 
 
I had originally planned to not store Rockn77 this past winter and instead use the funds that I would use on storage to replace this busted up dashboard pad. It's a big job that would require me to disassemble the entire lower dash board. The leaking power steering cylinder would take precedence, of course but I figured that as soon as I got that done I'd dive into the dash board project. While I had everything apart I also planned on redoing the tachometer, speedometer, dash lights and stereo.
 
 
You make plans the Corvette laughs. Last Thanksgiving weekend, I backed her out of the garage and when the posi-traction rear end hit an ice patch, with the front still in the dry garage, I noticed that the rear tires were still spinning despite all the pressure I could muster on the brake pedal. Rockn77 had no rear brakes!
 
 
At first I thought it was a bad master cylinder but the problem was much worse; it was a cracked brake line. This line right there, what's called the "cross over line" that carries brake fluid from the left side of the car over to the right side, was cracked. You can't see the crack in this picture but there's a sizable crack in the line right by that plug.

 
The removal and replacement of the cross over line was fairly straight forward. Biggest problem was getting the old line off the brass block right there. Corvettes are what are called "catalog cars"; you can get literally anything you need from after market parts distributors and that helps out greatly. I also sprung for new hoses and new trailing arm lines.  
 
 
I didn't count on having to replace the right rear caliper. I broke the insider bleeder off of this when I attempted to bleed the system the first time I thought I was near completion of the project. Getting this blob of iron off took two weekends of prying, plodding, screaming, yelling and praying. Eventually I got it off.
 
 
The biggest hassle was when I broke the front to rear brake line. This necessitated my removal of entire brake line from the proportioning valve back here to the left rear of the car.
 
 
This was an incredibly difficult process start to finish that took me the better part of three weekends to complete. There were many times during this process that I honestly believed I was not going to get it done. The thought of towing Rockn77 to a shop to finish the project made me nauseas. I soldiered on.

 
I have to hand it to myself and my perseverance for I certainly did get it done. Now, while at this point the front to rear line leaks a bit at the proportioning valve, I'm confident all it needs is more torque on it. Hopefully.
 
 
After that's done it's off to the power steering cylinder and then I'm done for the season. With strong brakes and a solid power steering rack, Mrs. C and I plan on taking some nice long drives this summer in Rockn77. Thank God Almighty, Finished At Last!
 
 
 

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