2000 K25 350 JB7 .I started with some nasty fluid and weeping wheel cylinders. Cleaned that up and thought I would firm up the pedal. Also replace the rear soft line before changing the wheel cylinders since a lot of bleeding was to come. 1.5 gallons later, with 3 abs bleeds, pedal was still garbage. I was convinced it was the drums since based upon my inspection they were past the wear limit-I didn’t measure and just adjusted way out. My fear is it was upstream of that and in the combo valve or the Kelsey Hayes unit. Well, I just clamped the rear soft line…still crappy, left front….still crappy….right front….a nice normal brake pedal!!!!!
So square cut seal??? I just lubed the slides as part of diagnosis as the PO or whoever only lubed the bolt itself and not the outer sleeve. I had to force them out with a screw driver and they were dry. There is no noticeable leakage from the caliper. The wheel cylinders were trash-full of brake mud. POs obviously were not **** about systems as myself-hate finding that out.
I have rebuild kits for both front and new lines, I guess it could be the line as well, below where I clamped it. Any thoughts? Best practices? I’m pumped its not in the combo or Kelsey Hayes unit.
Pick below is after about a gallon of fluid, front left. Still one tiny bubble coming out. @Schurkey is correct, plan on a gallon. And now I have more to do.
So square cut seal??? I just lubed the slides as part of diagnosis as the PO or whoever only lubed the bolt itself and not the outer sleeve. I had to force them out with a screw driver and they were dry. There is no noticeable leakage from the caliper. The wheel cylinders were trash-full of brake mud. POs obviously were not **** about systems as myself-hate finding that out.
I have rebuild kits for both front and new lines, I guess it could be the line as well, below where I clamped it. Any thoughts? Best practices? I’m pumped its not in the combo or Kelsey Hayes unit.
Pick below is after about a gallon of fluid, front left. Still one tiny bubble coming out. @Schurkey is correct, plan on a gallon. And now I have more to do.
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