Does anyone have a 'fastener log?" For the engine or the car?
I'm working on a "fastener log" which lists:
Headmark
Diameter
Thread pitch
Length
Finish
for my engine. For example, looking at the workshop manuals (the definitive reference for concours) and the remaining finish of the fasteners on my 901/05 engine, it appears that all the small studs were black oxide passivated, and the other hardware finished in clear zinc. Over the years, this changed to cad or yellow zinc on the studs and nuts, as black oxide has relatively poor corrosion resistance (as I am discovering 41 years later)
I suspect that a similar log exists in the notebooks of the best restorers, but the labor involved probably makes it a highly guarded secret.
Here's one 356'er who posted some info:
http://www.brown-house.net/356project/hardware.html
__________________