jr60 wroteThe spring from the CR size oil seal was just too thick, and although would fit into the cams it was too much of a tight fit and like greenmonster experienced it would not let the cams move.
The ones from the Gufero seal is the same thickness as the orginal, as to how it compares to the orginals lenght I don't know because mine was buggered!
Have you actually used the CR seal? Ive several and as I stated earlier have repaired several spags with zero issue of fitment.
It may be a case of SKF and any other manufacturer using a spring that is different to the CR one. That said, I will source both today, dissect and post results.