Jim, The early Bosh fuel pumps had a check valve integrated into the body of the pump, this style pump uses a standard one piece fitting (flat head). The later style pump uses an external check valve which requires the famous "dome nut". FYI: the original style pump was discontinued to a high failure rate of the built in check valve. "We're here to help you" DMC Help / De Lorean Services / <dmchelp@xxxx> Web Site: <www.deloreanservices.com> ----- Original Message ----- From: Jim Reeve <ultra@xxxx> To: <dmcnews@xxxxxxxxxxx> Sent: Wednesday, November 08, 2000 11:51 PM Subject: [DML] Fuel Pump Banjo Screw > Enlight of Stian's continuing problem, I was looking though the parts > manual and got confused. Now, I am aware that there was a change in the > fuel pump banjo screw somewhere during the line