23-05-2020, 03:20 PM
A year or two ago I rebuilt an engine which had clearly never been apart before. The split pins were still a sliding fit in the big end bolts. In 85+years the nuts hadn’t shifted at all. It reminds me that an Engineer for whom I have greatest respect once told me that correctly designed fasteners didn’t come loose. He would ever allow the use of any thread locking device on the grounds that they were unnecessary. That was over 40 years ago. My experience has been that he was right.
Alan Fairless