Take the time to examine parts on reassembly

I'm not one to hurry through a job. Always examine your mating surfaces. When your eyes aren't good enough, use a file. If you see something a little out of the ordinary, question it. Investigate those little things that don't seem quite right.
Here is something I found while investigating the oil pan/block interface where it looked like the oil seepage line was fluttering. Yes, I found the oil pan a little loose. So I started re-torqueing bolts. One bolt seemed a little different than the rest. What do you do? Investigate. I posted a picture of the bolt that caused the problem.[attachment=39495]DSC04591.jpg[/attachment][attachment=39496]DSC04594.jpg[/attachment]

I agree, I am assembling a PV 15 engine after tearing down 2 of them, between the 2 engines I am finding just enough good parts to assemble 1 with good matching fasteners and serviceable parts.

Yes.....you never know what is under thick grease/grime. I have a 8" bench grinder with wire wheel installed. Every bolt I want to save is run through it and checked. Every hole is chased with a worn tap and brake cleaner. So much easier on reassembly. For whatever reason I like clean parts in a clean work area.
Just my thoughts........
Have a good day.......Bill

In the military it is called attention to detail. I believe that the little bad things can quickly sum up to a big bad.