You WILL be able to tell through the inspection hole. However, you may need to rotate the engine a little to get a rod cap to line up.
No preparation short of finding/making a 5/16" square drive.
The plug above is coolant....you don't want to take that out.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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