Display MoreI have seen the pressurised crankcase method used many times. It works and so does heavy grease on a drill bit. There is just one issue with all those methods. I couldn't sleep at night NOT knowing what I didn't get out.
I think the thing that makes the worst metal shaving or cuttings is when you run that tap down into the hole and it cuts the threads. It makes metal pieces that make me nervous to look at.. And dont forget that there is a baffle in the oil pan that you can't clean out from under unless you pull the pan off and remove the 10mm bolts that hold it.
It's just to easy to pop the pan off for me not to do it. I can have the pan off in 15 mins. Just take the burp bottle off, take the engine mounts off, and take the nuts off the transmission tail piece. Then jack the bellhousing up till the pan slips out.
That way you can check the back side of the block and make sure you dont have any loose hanging cuttings waiting to drop in the pan. And you can clean it all up before slapping the pan back on..
I agree with you that it absolutely can be done the way your talking about. I just can't with my OCD...
We can find out pretty soon. My DDM built motor should be done any day. I'll ask Dave to check the internals if they have time and see if there is any evidence of excessive wear.