Hi there everyone, I'm a newbie to the site, I just wanted to share an experience I had recently involving brake parts cleaner. We had a Cummins engine equipped unit with a broken turbo shaft, and the job was given to an apprentice, which the shop supervisor was overlooking, I noticed after he had turbo replaced, that he hadn't removed the air to air to wash out, he took the easy way of brake parts cleaner to remove oil residue from the air piping, later I showed him how to oil prime the turbo, and I was asked to roadtest the unit, I backed out of shop at idle, and once outside, I shifted from 2nd to 3rd as I touched the accelerator the engine ran away revving past 4000 rpm on tach, turned off key, engine kept revving higher, tried to drop the clutch.I'd say the engine ran for a minute and quit, the amount of smoke made the whole work site disappear. Later I went back to the unit with a board and setup as to block air intake, when I attempted to start the engine it would not build oil pressure.
I got to check and tear down the engine for diagnosis, turns out that the can of parts cleaner used in spraying into the oil filled air to air had mixed with the oil, parts cleaner is heavier then air so it dropped into ATA and not evaporating. When the engine was initially started, I had asked the guy if He had used brake cleaner to start the engine ( which is common here, but that will be a different topic)
Myself, I have no use for BPC as it is dangerous product, how many garbage containers have I seen blow up over the years.