But you DO have some access through the switch area. Hose the interior with Carb cleaner several times, then lightly lube it with something light (Gun/3 in 1 oil) and reassemble. Work it gently, and see if it is any better. Repeat as needed.
If you get it free and smooth, then worry about a more durable lube.
Yeap ive shot some blaster in the but no carb cleaner yet. I pray I get it freed up completely.
I sent an email to oTc but got a rather short response. My email was rather short, the contact area had a small limit to type. Heres what I got. I dont blame them I bet they get some strange warranty requests.
What I sent
"Hello,
I am in need of some information regarding a rather old oTc ratchet. The part number is h-163 I would appreciate any and all information you have regarding it. Thank you for your time. "
What they sent
Sorry, we no longer offer ratchet # H-163. The ratchet mentioned below had a 90 day warranty. The lifetime marathon warranty started in 1984.
Then the page of warranty info