Rolf wrote:
Andrew? I think said that pre 84 the only way to time is drip. There are actually two other methods. One involves inserting a gauge or some sort of timing device between the injector and the IP. The other involves a clamp on device that senses the pulses in the line. Both allow timing with engine on.
Back when Ferret Instruments was here in Michigan, I bought their clamp on piezo device. Couldn't trigger it with my fine running but old 300SD. They sent me a more sensitive prototype to try, but that didn't do it either. I concluded that either my injectors were popping at a low pressure (but probably still a higher pressure than new non-turbo injectors) or the lines were too thick. The 5mm lines on the 60x engines are more failure prone, maybe they'd expand more than the 6mm lines on the 617.
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