New project: Allen Engine analyzers, restoration?

I picked up a couple of Allen engine analyzers from @Polara_500. They were taking up space in his garage and I thought I needed a new project. I am not sure yet who the winner is. :rolleyes:
They are now taking up space in my garage. My desire is to clean them up / restore and get them working. I don’t know much about engine analyzers so I guess it is time to learn.
Models 15-110 and 16-130.
The 15000 has an exhaust sniffer
We believe they are early ‘70s. I did find a pdf version of...

Read more
Author: HWYCRZR