456 first oil change, torque

When reinstalling the lower pan oil plug, I screwed it in finger tight, and was then ready to use a tool to add 1-2mm from the other end of the tool, but the plug just broke in two before I applied any kind of pressure.

I've ordered a new one (both plugs in fact).

Normal? The result of previous owner/mechanic being too tough on it?

No official torque recommendations? I never need that for filters, but for the plug, I would prefer if available

(the broken part came out easily)

 

Just to add, the spin on filters were extremely tight. Somebody must have confused their mechanics job with the gym...

 

Further examination:
Thankfully threads in oil pan are like new. So it's "only" a broken oil plug. But, I know I didn't break it, it must have had a crack since last oil change, so I was quite close to a small disaster, maybe. Looking at the plug, it being hollow and the "hollowness" is so deep it goes into the head, it looks like a very weak construction.

So, would I get peace-of-mind from installing a new plug just like it? No. I'm sure that is done successfully all the time, but... So I decided to do something else, that would give me peace-of-mind. I found a steel plug, drilled the head, made a small bracket on nearby oil pan stud, and safety wired it. That means I don't need to tighten excessively to make sure it stays in place.

Overkill? Probably. But it's what racers do, and I like it...
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