I am in the middle of rebuilding a Wakashaws 283 Diesel can someone who has knowledge tell me how to time the front gears? I've got the &quot;C&quot;'s lined up for the Crank and Cam with #1 cylinder at top however, I am not understanding aligning the Crank-Idler- and Fuel pump gear.

I have taken the window cover off the fuel pump aligned the marks correctly, the gear for the fuel pump also has a &quot;S&quot; marked on the back side. the Idler has two &quot;S&quot; marks on both the small and larger gear. however, I am at a loss... 
finally, when the Cam is in line with Crank &quot;C&quot;'s the Cam also has a &quot;S&quot; half way up toward the outside of engine 

Appreciate any advice or help, if someone has a schematic of this could you email it to me? <!-- e --><a href="mailto:mikephilbeck@hotmail.com">mikephilbeck@hotmail.com</a><!-- e --> 

Thanks Mike