That's good enough for me. So long as the gauge has started working again I'm fine with it.

I'll order a new pump and, after installed, bleed the lines.

Thanks!

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1974 240D "Boldie" 170K.- New timing chain/freshly rebuilt IP/replaced valve seals/injectors/upgraded stereo/new Bilsteins with Yokohamas/fresh paint and rocker panels plus lots of welds.