Brian Vogel
Grand Master Username: guyslp
Post Number: 1303 Registered: 6-2009
| Posted on Monday, 18 May, 2015 - 01:27: | |
Way back in 2000, Gil Fuqua of the RROC-US wrote an article entitled, The Key to Starting Your Rolls-Royce, documenting keys for the Pre-War cars up through the 1991 model year. The behavior of keys from at least the SY era through 1991 was the same: the valet key could not even be inserted into locks it was not intended to operate. Both the driver's key and the valet key blades were cut along the bottom in exactly the same way. It was a difference in groove width on lowest groove on the left side (if looking at the blade tip straight on) of the blade that accomplished this. This apparently changed sometime during the SZ period such that the valet key could be inserted into any lock, but would only turn in the door lock or ignition switch. I'm curious about two things: 1. When did this transition occur? 2. Are the cuts on the blades of these keys different? That's the only way I can envision this working if both keys can be inserted into all locks. Brian |