Parts in High Pressure oil pump

Hi all. Hoping someone can help. While working on the Jack, I noticed an oil leak from a bolt under the high pressure oil pump. I foolishly removed this to change a washer etc and then the fun started. Many parts fell out once the bolt was removed. I managed to fid them all (I hope), but not sure of the order. The bolt is on the bottom of the high pressure oild pump near the front of the motor. Inside there was a spring, a ball bearing and a triangular part. I think the order (from bottom to top) is bolt, spring, triangular part and ball bearing on top. Only concern is that the ball bearing was inside the spring once I caught everything.

I could not find this in the book and the local holden shop just wanted to sell me a whole pump. No detail on what is inside.

Does anyone have any idea which way round they go, or have an old pump to look in. Happy to pay for an old pump if required.

Regards

Bugbear