The borescope camera tip overheats on hot engines because the LED lights and image sensor sit in a small, sealed metal housing with no airflow to carry heat away. Ambient heat from the engine adds to the heat the electronics already generate, and the tip keeps climbing until it shuts down. I learned this the … Read more

Inspecting a new radiator for debris before install with a borescope means feeding the camera probe into the inlet and outlet ports and the top hose neck, then slowly sweeping the tank and core tubes while watching the screen for metal shavings, sand, or casting grit. A flexible probe around 5 to 8 mm wide … Read more

Wrapping a tennis ball around the probe head creates a soft, round bumper that keeps the camera centered and stops the lens from scraping duct walls. The ball’s curved surface glides along the metal, so the probe slides forward without snagging on seams or rivets. I cut a small X in the ball, push the … Read more

3 best borescopes for engine inspection The Teslong Two-Way Articulating Borescope is the best borescope for engine inspection because its 5.5mm slim probe reaches tight combustion chambers while the two-way articulating tip bends to show you valves and cylinder walls. I compared 3 models and ranked them best to worst. Best overall: Teslong Two-Way Articulating … Read more

7 best borescopes for diy The Kinpthy Endoscope Camera with Light is the best borescope for DIY work because it pairs 1920P HD resolution with 8 adjustable LED lights and a semi-rigid snake camera that reaches into tight spaces. I compared 7 borescopes and ranked them from best to worst for home and garage projects. … Read more