If I remember correctly, the valve stems are "pre-fractured" so that if the timing belt breaks you don't have a catastrophic failure. The "pre-fractured" term is not mine!! It's in the FSM somewhere.

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2005 sport crd-SOLD No regrets

This doesnt make sense to me...anyone care to explain why we would want pre-fractured valve stems? Seems to me a broken valve bouncing around inside your cylinder would be just as bad whether it was pre-fractured or not

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It may be that your only purpose in life is to serve as a warning to others.

06 CRD Sport
Built 5/11/06
Jeep Green
Rocklizard diff cover
V6 Airbox