There are two different types of oil metering pumps for the FC's.  The early 1986-1988 FC's have a mechanical oil metering pump.  The later 1989-1991 FC's have an electronic oil metering pump.

Oil leaking from the flange for both types of oil metering pumps is due to a rubber o-ring.  Replacement of the rubber o-ring is straight-forward.  Oil leaks can also be due to bad copper crush washers on the oil metering lines.

On earlier 1986-1988 Zenki FC's with mechanical oil metering pumps, oil can leak from both the "front" and "rear" endplates.  Each endplate is secured by two Phillips head screws.  Remove the screws, and the endplace can be removed.  Under each endplate is a diamond-shape o-ring; they are usually hard like plastic.  Mazda does not sell this o-ring separately, so RTV is substituted as a sealant.



Questions?  Comments?  Send mail to:  reted@fc3spro.com

12/26/2003