For any technician who maintains or repairs large reciprocating engines, the VJ-Advance video borescope can save valuable time and money by preventing costly teardowns. Get a look inside the combustion chamber, crank case or valves without removing the heads. Take pictures for documentation and get the repairs order expedited. Dozens of our customers have reduced engine downtime considerably by adding the VJ-ADV to their maintenance tool kit. See above for examples of large engine borescope photos.