Piston Slap: The Self-Lathing CRX?

Gareth writes:

Good afternoon Sajeev,

Read your latest and I’m determined to help you out. I recently had a bone-stock 87 CRX Si follow me home from an impound auction and, if I can get the damn thing through an Ontario Safety Inspection, I’ll let TTAC’s very own Derek K drive it.

Therein lies the rub, or brake rub really. The front discs were rubbing, a lot. Constant grinding sound as the wheels turn. I have since removed/lubricated the caliper sliders (they were a bit stuck from sitting) and measured the discs and pads using a measuring tape and straight edge, everything is above min specs.

With the pin lube the grinding noise has abated somewhat but continues, worst is passenger side.

The discs don’t feel warped (no front shudder under hard braking).

Your thoughts?

Read more
  • Carson D Just don't be the whistleblower who reports on the falsification of safety data. That's a deadly profession.
  • Carson D I'd have responded sooner, but my computer locked up and I had to reboot it.
  • Todd In Canada Mazda has a 3 year bumper to bumper & 5 year unlimited mileage drivetrain warranty. Mazdas are a DIY dream of high school auto mechanics 101 easy to work on reliable simplicity. IMO the Mazda is way better looking.
  • Tane94 Blue Mini, love Minis because it's total custom ordering and the S has the BMW turbo engine.
  • AZFelix What could possibly go wrong with putting your life in the robotic hands of precision crafted and expertly programmed machinery?