I'm working on a track hoe with a 86 inline 6 international diesel non turbo..Its got a bosh rotary pump and looking for info on timing marks.I found lots of marks on the pump gear and found markes on the crank pully however no marks on the drive gear for the pump..Anyone have a fourm link or service guide that might help me make sence of all these marks?I thought it would be simple but there are lots of marks on the pump gear..just trying to make sence of it all...