Is this BAD advice about oil pumps?

[radarcontact]

Hi,
I was researching on the web about clogged oil pump screens, pumps, etc. I came across these two answers on how to resolve the prob without having to drop the oil pan (PITA, and trying to avoid it). These responses seem very sketchy at best. Anyone have a comment as to whether these methods would be safe and might possibly work? (The first one doesn't seem too bad...):

"Technican: Hi; You can try this and about 70% of the time it does. Empty out all the oil and reinstall the drain plug. Fill up the oil pan with a gallon of mineral spirits. " DO NOT START THE ENGINE ". Let sit overnight. Drain all the mineral spirits from it. Buy about two quarts of real cheap oil. Pour it in and let sit for about 1 hour. Drain it again. Put your regular oil in and let idle for about 1 hour. If this does not fix it you will have to pull the motor and replace the pump and screen. . "
________________________________________
"Technican: there is a way of cleaning out your oil cooling system that works well put in a gallon of diesel fuel in the engine and run your car for a half hour.this will thin the oil out and clear the portsI know this will do the trick you should never have to pull the oil pump. I hope this helps"

[Ranger Dave]

i wouldnt use straight diesel fuel, ide go 1/2 and 1/2.

[tekatlarge]

I wouldn't do either unless all I wanted to do with the engine was use it for scrap. if your lucky enough to get any carbon/oil/gunk buildup to loosen it's grip on the screen what about the gunk that comes lose and doesn't get out with the rest? What about the crap on the backside of the oil pump screen? It will be circulated through the oiling system and either gum something else up or gouge bearings big time.