I took a Roosa Master DBGFC 637-52AF injection pump apart and after soaking it found these extra parts in the sink,a 1/8 " steel ball,1/8" steel rod 1 and 5/8" long and a steel piece 1/4"diameter round and 3/16" long with a 1/8" hole thru it in the center the inside looks to have an oil groove like it might be a roller. One deisel place said the 1/8" rod went in the hyd head of pump under little plug as I had suspected but neither they nor I have any clue as to where 1/8" ball or 1/4" roller is suppose to go and none of my or their photos show such parts. I looked at hundreds of online photos and none show these parts yet they came out somewhere. Please if anybody has photos or info about these i need your help