I ended up having to get a different injection pump for mine. The OM617 I rebuilt came with an injection pump that had been sitting with veggie oil for a while. I cleaned it as much as I could, ran biodiesel through it, did diesel purge, ran seafoam through it...nothing would help it. I would not get fuel at at least one cylinder when idling with the old pump.

The new pump I installed made all the difference in the world. The car is runs 100% better.

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Milan Brown 1979 240D, rebuilt OM617.952 turbo diesel, rebuilt 722.315 transmission - engine spun a rod bearing, sold to pick your part

1979 300SD, ~90k original miles, all stock