Well, I'm embarrassed to tell this, but maybe it will help others to keep from doing the same thing.

I started the engine on my daughters 300D this morning. I had just put a used IP on it and charged the battery over night. I bled a few lines and it wasn't too hard to get started.

When it started, it went to maximum RPM. I turned off the key, but it didn't shut down. I pulled the linkage all the way to stop, but it kept going wide open. I knocked the link from the upper linkage to the pump loose from the upper linkage and pulled the link as far as it would go, still nothing.

I then pulled off the intake hose from the air cleaner and put my hand over the intake. It took the RPM down to about a third of max, but refused to shut down. It was getting VERY hot, so I abandoned it and called the volunteer fire department to get them rolling in case it blew and started a diesel fuel fire inside my shop building.

From the time it started until it finally siezed was about four or five minutes I would guess. In that mental state, it's hard to estimate time. I never looked at a watch or clock. It took about another five minutes for the steam to stop blowing from the radiator.

The engine that came out so good after the rebuild is now scrap iron. I will now have to decide whether to use it for parts, sell parts from it, or just sell it for a parts car to someone.

This is all very sickening. The car wasn't really worth putting a rebuilt IP on, but hindsight is always 20/20. I would at least have something that runs had I done that. I gave $150 for the IP.

The next time I do something like this, I will remove the air cleaner before I start it up. That way I can seal off the intake completely if something like this happens.

I guess things happen.

Have a great weekend,