So, having just replaced my engine after some unfortunate circumstances with, well, old car things.

So, my new imperfections with the car are as such:

The power brakes are not powered. They are stiff, or rather, they require a lot of force to use them, and they do not work so well. I suspect something was not reconnected.

And, unfortunately, I have diesel runaway. When I turn the key, the car does not stop running. It runs just the same as before. I suspect the vaccuum pump that cuts off the fuel is stuck. I don't know how to get at it, so I'd like to learn how to get at that.

Right now, I stall the car to get it to turn off. Is this extremely bad if I do it twice a day for a few days before I get this assessed by my mechanic?

I have tried to press the emergency shutoff (the stop sticker on the throttle lever, and it slows the engine, but does not stop it)

I have also tried clogging the air intake, even taking the cover off and trying to clog it (with my hand, not a rag that could be sucked into the engine) , which also only slows the revs, but does not stop them. (I try doing both, and it does not stop).

What should I do?