Quote:
Originally Posted by Vegas69
It's about time to put a fork in this one,.
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I forgot to knock on wood with this statement. Even though it made no sense to me, I adjusted the master cylinder rod length after the brakes locked up on me and it seemed to solve the issue the rest of the night. The next day I decided to drive it out to our new house and low and behold the brakes locked up as I got to the house! Clearly it was due to different conditions. When I put the new 1" bore master in, it was a different designed piston. I felt there was plenty of slack between the piston and push rod. I guess I was wrong. The problem is, I must angle the rod upwards to put the clevis pin in the pedal arm. I'm guessing it's 1-2 degrees beyond the natural freeplay. So, it's putting a little residual pressure in the lines once things expand. 666hp will not overcome these brakes. The fronts locked up and I had to do a burnout to get in the garage.
Today I moved my shop over to the new house. I now have a 950 sqft main garage and 600sqft shop. I set the shop up the best I could and tore down the master cylinder. I found that the interference fit between the pushrod bevel and master cylinder piston insert was to tight. I ground down the insert .150 and shimmed it to fit after some measurments. Without the insert I only have .025-.030 interference fit which won't make me feel to good sailing it inot turn one at 80mph.

I measured the angle available before depressing the piston and it was only 6 degrees. After making my adjustment it's roughly triple at 18 degrees. I'm estimating I only need 8 degrees to eliminate the problem. I think it's time for a new angle finder.

Only I would scratch up a polished master cylinder.

Don't mind big red and the stripper in the back ground.

This picture sucks but it's my new shop. I don't know which camera is in my new office, old house, or new house, or a box.

Man it's nice to have nearly a half acre to roam.