Oil Temp Bulb Safety

[C170U2]

Should the oil temp bulb be safetied? Mine isn't drilled for safety wire. The housing it screws into is safetied just not the bulb itself. Ive always wondered about it. I put torque seal on it so I can visually see if it has loosened.

Thoughts?

[Bruce Fenstermacher]

My thoughts are that it is not logical that it does not have a safety.

There are thousands of small continental engines that have flown hundreds of thousands of hours without the bulb being safetied over the last 70 years. I say this as I've never seen one safetied and would expect as they don't come drilled, very few have taken it upon themselves to drill a safety hole so it could be safetied.

I admit I've left the bulbs loose and that makes a mess real quick. Maybe if I had to look forward to doing a safety on it I would have remembered to tighten it.

Have you ever heard of a temp bulb coming loose? I haven't. Perhaps it has. You'd think if it was a problem it would have been addressed maybe 60 years ago.

Now that I've thought this much about it I wonder if we don't safety way to may things we just don't need to.