I'd start by re-establishing TDC (if that is in doubt) to make sure your crank pointer is accurate. Remove the injector from #1, rig a clear tube of some sort (sticks up about six inches past the top of the valve cover) to make a good seal in the hole the injector screws into, and fill up that cylinder with oil about half way up the tube. Rotate engine, watching the oil level rise and fall with the piston. Find TDC by marking on the crankshaft balancer where the oil stops rising and then again where it starts failing, and TDC is exactly in the middle. Repeat this several times to make sure you get the same TDC each time, and then move the pointer so that you KNOW where TDC is.

Next, with the engine at #1 TDC, look on the front right of the camshaft gear assembly. There is a hole on the driver's side camshaft gear which is supposed to line up with a hole in the support behind it at TDC. You should be able to stick one of the valve cover bolts through. There are also two index marks (dots) on the camshaft gears that should be lined up at the same time.

__________________
Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC