I found a renault 4 engine in a river in france and am curious

[Tnkk333]

I found a renault 4 engine in a river in france and am curious.

By searching the 839-06 number I found out its a 0.8l 782 CC billancourt that was in the renault 4L and renault 5. Im curious if any other numbers can tell anything more about the engine and car it was in.
The numbers:
Picture 2: 839-06 and 0273615
Picture 3: is either //00530818 or 7700530818
Picture 4: T.7700530362 and behind that FD12

 

[André4Renaults]

........Quick change of filters & fluids-it'll be as good as new........

 

[JdeW]

those engines are practically indestructible so a quick overhaul and you’re done

 

[reidalpine]

If it had read BERNARD it would have been in its element in a river.... c".)