Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
I am no DB2 expert, but there is a lot of very good information in the links below. I believe what you are asking about is the High Pressure Cold Advance (HPCA).
Oliver Diesel - Engines & Outdoors
Stanadyne DB2 Fuel Injection Pump » Motor Mayhem
"Housing pressure and transfer pump...