| Re: Flushing afterwards |
Subject: Re: Flushing afterwards by CentralCoaster on 2008/3/17 18:34:32 You can't flush it with the thermostat in place. I remove the tstat, put the upper neck and hose back on, then I blast the system out with a garden hose from the upper hose, lower hose, then alternate. If your hose sprayer doesn't fit snug inside the radiator hose, wrap it with duct tape to make it a tight fit so it doesn't shoot water all over you. You need some good force to remove all the loose rust, the little cleaners/flush/dissolvers won't cut it. The benefits of a good power flush far outweigh the downside of having extra tap water in there. And if you insist you can then drain the extra tap water by removing the sensors at the bottom of the block just above the oil pan. Also, never ever run the system without antifreeze for any length of time. Tap water is VERY nasty and corrosive when it's operating at 180+ and the antifreeze is your only corrosion protection. It will attack your head/intake gaskets until it leaks into the lifter valley. |
