That takes me back.
In my youth I used to rebuild cars, everything from bodywork/panel beating/welding to boring out blocks, skimming heads, polishing valve seats, rebuilding gearboxes, fabricating exhausts, etc.
I haven't gotten that involved yet, but have had to do a cylinder head replacement, then pulled it off again a year or so later to pop out the pistons, replace the rings and hone the cylinders, which reduced oil consumption slightly. (Went from about one quart per tankful of gas to going 7,500 miles on an oil change without needing to top it off at all.) On that car, I am down to four hours to change a timing belt and water pump.
I used to do more with installing audio systems in cars I owned but in recent years, it frustrates me more than anything, digging around inside a cramped car. Yet I have to dig in tomorrow and pull out the head unit to find out why the mic isn't working. And if I can't find the issue, I have the same head unit in the spare car, and have to swap between the two vehicles. (I'm leaving Monday to Wyoming for a
Lemons Rally which starts early Thursday morning, so I need the mic working.)
What wears on me the most isn't the wrenching. It's not having a lift (getting up and down constantly), and having to work in the driveway since we have to use our garage for storage.
I took part in three Lemons Rallies last year. I have two planned for this year, maybe three if I decide to do the east coast (Fall Failiage). It's a great way to get out on the road and see the country, without the $500K hypercars, lobster dinners, speeding tickets and five-digit entry fees. With Lemons, you show up in whatever you can drive that might make it to the end of the rally--it's more like a scavenger hunt, locating checkpoints. (It's a spinoff of 24 Hours of LeMons.)
My other pastime was this past weekend, meeting up with friends and colleagues at AXPONA, the high-end audio show in Chicago.