I was flushing the radiator alone, removed from the car. Once I ran the hot water through the radaitor for about 20 minutes and had verified that the radiator was evenly warm on both sides (remember-it use to be stone cold in the center while in the car) I emptied the citric acid out and flushed the radiator with clean water-both reverse flow and normal flow. No more red flakes. Tomorrow, I will hook up to the radiator hoses (already have a modified open thermostat installed) and flush/air agitate the block for several hours. Then I'll install the radiator and see if it cools any better.
Luther On Sat, 11 Nov 2006 15:53:48 -0600, Tom Hargrave <[EMAIL PROTECTED]> wrote: > Luther, > > Re: Previous email - this is different from the machines I've seen in > action. > > Tom Hargrave > www.kegkits.com > >----Original Message---- > From: Luther <[EMAIL PROTECTED]> > Sent: 11/11/06 04:49 PM > To: Banned List <[EMAIL PROTECTED]> ; Mercedes Discussion List > <mercedes@okiebenz.com> > Subject: Re: [MBZ] SDL radiator flush > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= > Oh yeah, this is a reverse flow flush. In the bottom of the radiator > and out the top. > > On Sat, 11 Nov 2006 15:33:07 -0600, Luther <[EMAIL PROTECTED]> wrote: > >> I purchased a Prestone Flush and Fill Machine that checks coolant > system pressure, flushes the system with water, flushes with water and > air agitation, and fills the coolant from a graduated reservoir. > Flushed the radiator for nearly an hour with air and water until the red > flakes were no more. Now I've been running an acid flush continually > through it. I'm adding hot water into it to see if I can feel an even > temp change across the radiator. If so, I'll re-install it into the car > and drive it and check if it still over heats. >> >> That coolant machine might be one of the best $25 investments I've > made. And I happen to know where there are more like it.... >> > > > -- Luther KB5QHU Alma, Ark '87 300SDL (270,491 mi) head case? '83 300SD (241 kmi) '82 300CD (162 kmi) '82 300D (74 kmi) needs MAJOR engine work '85 300D (280,176) parts car
