I have an inexpensive "DEPSTECH" "scope"... It connects to the Wi-Fi on my tablet. The problem is that the camera sensor is too long (about 2") to fit into the expansion tank and move around easily, and the focus does not allow in-focus "really up close" shots. In particular, I cannot see the section of the welds that are on the port sides that are closest to the bottom of the expansion tank. Can anyone recommend an "affordable" borescope that allows in-focus, very close shots?
The welds that I can see all look good; but as I said, there are some areas that I cannot see around the ports. My engine was factory new (still sealed in the crate with the blue plastic wrapping) and my serial number (9144585) does not appear on the list. The part number on my expansion tank is 622050 (I know that previous posts say we shouldn't rely on the serial number).
Mike