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Can anyone tell me if belts, i.e., fan, idler, generator, are judged, if so, what exactly is judged? Can I use a correct style belt if the part number isn't correct?
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Re: Belt Judging
Yes, V-Belts are judged. Not all judges really know the correct, factory original PN's so you can get a 'break' with novice judges who simply look for the proper configuration of the belt (cloth wrapped on early cars and die cut on later cars). When, a given part isn't highly described in the NCRS Judging Guide book, it becomes a matter of the judge's personal knowledge.
In that case, the originality factor is viewed along a 5-axis universe, Finish, Date, Installation, Configuration and Completeness with each axis being given equal weight. The correct Part Number embossed on the belt and any other identifying marks would fall into the Configuration axis. So, if the part was given, say, 5-points for originality you'd expect to lose 1 judging point for an incorrect PN on the belt. Some belts WERE dated, and that would introduce another 1-point deduction for a service spare vs. factory original belt.
In some divisions, the JG book 'may' inform judges to take a full deduction for a given part if it's NOT a GM item. The thought process in some fields goes like this: it's so easy to go get, say, AC spark plugs, why should we give any partial credit for non-GM service replacement component like Bosch? But, in these cases you have to have the JG book for specific text on a given year Corvette along with the NCRS Judging Reference Manual (the 'white' book) for it's Standard Deduction Tables (intended to read on parts that cross model year/Corvette division lines). If scoring a given item isn't clear in either book, then it's the judge's call based on Finish, Date, Installation, Configuration and Completeness.
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