Re: Does anyone know how to
Clint, if its just lime and calcium buildup your after then a 25:1 vinegar and water solution will work. Go to HD and get miracle grow sprayer. Hook it up to a garden hose, fill the tank of the sprayer with household vinegar hook another hose to the other side and your motor flushing ears.
Turn the water on and start the engine. Run it until it is warm and you can smell the vinegar comming out of the tell tale tube. Turn the engine off and tilt it all the way. You can't keep all the mix in the engine but a lot of it will stay.
Let is soak overnight and then run it on fresh clean water. If it's really bad enough to require flushing you'll see chunks of calcium and lime blowing out of it. It's best if you can put it in water and run it at speed. This will not remove corrosion build up, that requires a tear down.
Aluminum blocks need special care when cleaning. Most of the motor flush cleaning agents are for cast iron blocks and they will severly damage your aluminum block and heads.
