Mike,
Always liked goofing around with cars. Girlfriend in HS got me into cars. Saturday night dates related to rebuilding cars.
Family raced cars. Wasn't much of a date though cuz her whole family was always there.
Back in the 90's one of my IT endeavors related to the integration of computers with automobile assembly and mixing Microsoft SQL and AS400's relating to the "build" of the cars at the assembly plants. (Ford, GM, Chrylser and BMW). I was privy to get involved in new builds from soup to nuts; neato stuff to watch. PITA though that I would have to walk "the assembly" lines about twice a week during the initial start ups. It was all about how fast the car could get built back then. Tested and used RFID tags switching over from bar codes back then which helped me a bunch cuz I needed to know the exact position of the car on the line at a specific time.
I have an old now 2001 E46 330XI. Its been mostly sitting since purchase in 2001. Well it has 30k miles on it. Two weeks ago decided to change the belts and tensioners. Took about one hour. Watched a few You Tube videos beforehand.
All was well for 3 days of driving it. Then the water pump pulley shattered. Both belts turned to mincemeat. The plastic pulley disintegrated. I wasn't driving fast when it happened. It did sound like a little explosion though. I flat bed towed the car to my home and yesterday put two new belts and a new metal water pump pulley.
Initially replaced parts H,B and C plus the belts.
The belts were OK and I was getting a little bit of squeaking from one the upper tensioner labeled c (age?)
Part A (water pump pulley) is made out of plastic and replaced it with an aluminum one.
Note: thinking the plastic cracked with age rather than use and the new tensioners might have done this?
It was a pita looking for all of the little pieces of plastic from the water pump pulley shattering.
All is well now, car purrs like a kitten. It is a little pocket rocket.. The plastic pulley did have little cracks in what was left of it.
Car is a bit modded and but I keep it simple. That said I did find some persons name and date written inside of the recesses of the automobile that must have been involved in the build of it which sort of freaked me out.
I try to BBQ in the winter if I can.