WHAT DOES JDM MAZDA RX-7 FD 13B-REW ENGINE FOR SALE MEAN?

For each apex (corner of a triangle) within the rotor, there’s a seal that retains the corresponding chamber airtight, and each apex seal is loaded having a flat spring to maintain contact with the housing. Apex seals and springs are expected to wear out soon after all over 100,000 miles or less, but you will discover other triggers of apex seal