I am looking for a good source for Volvo engine parts. I have a First 310 with a Volvo 2002-BT engine. It seems that every time I order a part from my local supplier it always has to be taken back until they "stumble" upon the correct part. The most recent case in point is the seals in the raw water pump. I am once again returning them since they are larger than the pump shaft. Also is there a good engine repair book for this engine that includes all the accessories, i.e heat ehanger, risers, pumps, alternators, etc.