| and I can only imagine how many times it's happened in the past. The last person shattered the thrust flange on the camshaft. This can only happen when an Early VTC is installed onto a Late cam without a JWT spacer because the VTC's rear seal plate will contact the cam's thrust flange before the VTC engages the front face of the cam (see first picture below). Consequently all of the bolt's torque gets transferred to the flange and over-stresses it to a breaking point. It doesn't surprise me that the front of the cam could break off once a crack forms in the relatively fragile iron. It really is the consumer's responsibility to know what type of cams they have so they can order the correct VTC type. So here are some pictures and a table to help everyone to identify if they have early or late intake cams, which VTC will work, and when a JWT spacer is needed. 
 EARLY VS LATE INTAKE CAMS4.jpg)
 EARLY VS LATE INTAKE CAMS2.jpg)
 EARLY VS LATE INTAKE CAMS3.jpg)
 EARLY VS LATE INTAKE CAMS7.jpg)
 EARLY VS LATE INTAKE CAMS8.jpg)
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