Seem From the spark plug hole Using the suggestion of the scope positioned just much enough in therefore you don’t see the spark plug threads. Use the scope as The sunshine supply and manually switch the engine to position the piston at The underside of its stroke. A strong movie https://demat28495.blogmazing.com/31705700/how-much-you-need-to-expect-you-ll-pay-for-a-good-industrial-borescope-inspection-camera