I have everything ready to drill the dowel holes fro the front balancer, but the old holes are so bunged I cant get the orientation to my liking. its so bad it could go either way at 180 degrees. how can I set the engine to TDC without removing the #1 injector or glow plug? I can see the cam through the oil fill hole, is that enough

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1982 300CD Turbo (Otis, "ups & downs") parts for sale
2003 TJ with Hemi (to go anywhere, quickly) sold
2001 Excursion Powerstroke (to go dependably)
1970 Mustang 428SCJ (to go fast)
1962 Corvette LS1 (to go in style)
2001 Schwinn Grape Krate 10spd (if all else fails)