so you tapped the retainer to move it slightly..
then reused the entire retainer/follower end?
High Pressure Fuel Pump, OMG GUYS!!! - Mazdaspeed Forums
If you have lost the pump puck and just installed the retainer.. this will cause problems.
The pump internals reuse the factory retainer, with the puck
Hope this is of some help
Doc
---------- Post added at 06:32 PM ---------- Previous post was at 06:31 PM ----------
Cam Follower Nicked, Possible Cam Damage, after 2 HPFP failres - Mazdaspeed Forums
also have a read here