Borescope Advice

Replace the rotocoils at 500-600 hrs....yes, but lapping them for that picture? Nope.
 
schmookeeg said:
Like I said, TIL :)

Was therapeutic anyway and cost peanuts.
Click to expand...
I have lots of TIL moments..... o_O

So, now you know what a leaky guide looks like.....but, also the valve face looks nice and concentric, or round, and that's an indication of "even" heating/cooling. If the colors were not evenly distributed around the valve face I'd be concerned...that's an indication of heat concentration due to the valve not turning and transferring heat to the valve seat (the reason for having working rotocoils). The other thing....you didn't mention is the compression numbers....I'd bet the values for that cylinder weren't bad....probably high 60's to low 70's.
 
Last edited:
I’ve got the VA-980-A. Purchased it in Dec of 2021. It connects to my Apple cellphone, or iPad via a small in-line wifi box. Also using a rechargeable battery pack ($20 Amazon) which is about the size of a cellphone. This allows the convenience of being able to scope in remote locations where there’s no AC power. Don’t know the resolution numbers, or how the picture quality compares to others but I’ve been completely satisfied with the images. Price was under $400 for everything.
 
Lance F said:
After going through two Vividia Ablescopes, I got a Teslong. Incredibly better.
Click to expand...
I took your advise and bought a Teslong. Very happy with it.
IMG_0019.JPG

IMG_0011.JPG
 
odie451 said:
Savvy Aviation has a video regarding the Borescope inspection.
Click to expand...
So here's the link to the Savvy Mx Borescope Initiative website: https://www.savvyaviation.com/borescope-initiative/
There's also a checklist on the site you can download that steps you through the borescope process they recommend in the video. Speaking of which the meat of the video on how to take the images starts at 9:50 if you want to skip ahead past the Mike Busch yadayada. At the 25:00 mark they launch into how to interpret the images.
 
Last edited:
I have one of those cheapie Chinese endoscopes. If you use a piece of safety wire to wrap the cam head back to the cord, you can fish it through a plug hole, use the safety wire as a handle and get a good valve and cylinder wall pics, better than the dental cam. The long cord make it good for inspecting wing root and other places deep inside the airframe or behind the panel when attached to a flexible rod.

Other nice thing is if you get oil on the lens, or step on it, or otherwise fargit up it's no great loss.

The big problem with it now is the latest Android updates have broken all the good OTG usb cam apps.
 
You must log in or register to reply here.
Back
Top