Unless a customer specifies differently, we only use the cast iron Melling oil pump. We also always install an IPD re-enforcing ring although we only seen Volvo and aftermarket aluminum pumps experience shaft tip failures.
The problem you experienced with the IPD re-enforcing ring is due to the fact that the end of the distributor drive shaft is a little wider than the oil pump shaft. So for easier fitment, we always grind a little off the sides of the distributor drive gear right at the end of the shaft.
--
Eric Hi Performance Automotive Service (formerly OVO or Old Volvos Only) Torrance, CA 90502 hiperformanceautoservice.com or oldvolvosonly.com
|