Glen:
Welcome to Pelican
-- this forum (the 911 technical forum) is dedicated to aircooled Porsche 911s built before 1990 -- you should probably post this question in pelican's 996/997/991 (water cooled 911s) tech forum at
Porsche 996/997/991 Forum - Pelican Parts Forums -- also understand that rennlist.com has a pretty active water-cooled 911 technical forum. Best of luck with your issue