--- ViaJoaquin@xxxxxxx wrote: > What kinds of "problems" have you seen it cause? Several years ago, while driving from Napa, CA, to Knoxville, TN, in January (the "rest of the story" on this one is almost as long as the drive was!), the heater on a certain '81 Olds-muh-bilge gave out at about 10:00 at night in 20 degree weather. And lemme tell ya, it gets pretty blasted cold in a car on the interstate under those conditions. In a nutshell, this stuff (the powdery stuff that comes in a plastic tube) had congealed in a big wad right at the heater control valve, preventing any hot water from making it to the heater core. The guy at the GM dealership in Albuquerque (really nice folks, by the way), showed me the plug of this stuff that he pulled out of the heater valve. I've seen it plug heater cores and radiators in several other cars over the years. And when I had the engine rebuilt on my '71 Imperial (http://www.imperialclub.com/Yr/1971/Scott/Engine/), the mechanic showed me what this stuff did in the water passages -- he said it was probably the dirtiest engine block he had ever seen, courtesy of radiator stop leak. The machine shop actually had a hard time getting this crap out of the block, which says a lot. And do NOT use this in a '71-'73 Imperial with AutoTemp II. It will kill the AutoTemp servo in short order. Again, most cooling system fixes are among the easiest and cheapest repairs that can be done on these old cars. Removing the heater core on a '66 Imperial (the original car in question) takes about 15 minutes. Having it fixed at a radiator shop will likely be under $50. The radiator shop I use in Chattanooga, TN, will boil and rod out Imperial radiators for $55, and it only takes about half an hour to remove or replace one. In short, if you have an Imperial that you like and want to preserve, why try to take a shortcut like this stuff, when FIXING the actual problem is relatively cheap and easy? Elijah ===== http://www.imperialclub.com/~imperial71/ http://www.imperialclub.com/~imperial71/bookshelf.htm 1965 Imperial LeBaron 1967 Chrysler Newport Custom Sedan 1970 Imperial LeBaron 1971 Imperial LeBaron __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm