Kerosene in Engine Oil?

And somebody said it the other day in a similar post... also remove the valve cover plate and clean the sludge there. And try to clean out/rod out the holes to the main bearings.

And my personal preference is to install a new oil pump... I rebuilt my old pump for my newly rebuilt engine, and upon start-up it took over two minutes to get oil to start flowing at the oil return tube. That made me nervous, so I replaced it with a new one from Bratton's, and I had oil flowing at about 25 seconds. If you're going to attempt to get your lubrication system right, might as well cover all the bases.
 
I would drain the old crap oil out and anything that will go with it. Then put three quarts of fox head or wolf's head Something really cheap, filling it with the kerosene and A little Marvel's Mystery oil. This (MMO) is a solvent. Start it and run about ten to fifteen minutes. Drain the oil out, don't rev it, just keep it going. I have a totally different purpose in mind. You see when I was working with aircraft,many would sit a while and gather a thin coat of rust on the cams, lifters, cylinder walls, etc. Running the engine would break this rust off and it would go into the oil as fine particles of iron oxide, which is like valve grinding compound. When you run and drain the engine you get rid of this. After you've thoroughly cleaned the engine, cleaned the screen, fixed the oil pump, etc, Put some more of the cheapo stuff in the engine (no Kero this time) and run for about a hour and drain again. You next and last fill should be the oil you are going to use. Most here like Shell Rotella, 15-40 Available at Tractor supply. I like a little bit of STP with it. But that's my perversion, you may hate the stuff. I think it would be a mistake to assume that there are no consequences for not cleaning it thoroughly. Good Luck!
Terry
 
Engine flush in a bottle smells like kerosene and diesel with some cleaning additives. Kerosene in the oil was some old trick for softening muck in engines (works for degreasing engines) and is still practiced by some.
 
Thank you for this thread!! I pulled the oil pan and did not find much sludge, but the screen was completely blocked with debris. I was having second thoughts after I pulled the pan and saw a little sludge in the pan, but when I saw the screen plugged I was so thankful I did. You guys and this forum have helped me soooo much and I just wanted to thank you all. I would have drove this car and probably blown the motor.
 
Last year when I bought my '31 Ford PU project, it came with what the guy called was a rebuilt engine. Some one had recently had the head off and they had done a spray can rebuild. Dropping the pan, it was clean out inside, but under the dipper tray in the pan, there was over an inch of old sludge piled up. Some half-wit had cleaned up the engine but had failed to clean out from under the dipper tray in the oil pan. The rest of the "rebuild" was of the same poor quality. Always pull the tray from the pan for a good cleaning, that is where the crap will be found.
 
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