This truck has no EGR or ALDA. The Injectors were replaced last year with ones that were supposedly calibrated before shipping for the NA 617. There was a pick up in power then (seat of the pants meter), but the smoke remained mostly unchanged.

I guess it makes sense that it would spill fuel out when the valve and injector are removed as it is just filling the chamber with fuel that would be pushed out the injector on the next compression stroke.

Then my measurements would validate the shops, we both have it at about 24 degrees BTDC.

Maybe the PO had a block on the throttle and it fell out!

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1985 190E 2.3-16v Euro
1980 300GD SWB