Quote:
Originally Posted by Halon
... they start as 2 pieces and are then fused together some how to create a single valve..
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fusion welding, the same thing they use to weld the exhaust wheel of a turbo to the shaft. Spin one part really fast then smash it into the other part that is not moving. It looks to me like the valve head smashing around caused all the damage. Flow testing the injectors is a good measure to take anyways.
~John