cascade radiator flush
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Joined: Jun 2012
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cascade radiator flush
anyone have experience with the old 'cascade in the radiator' flush trick? i'm troubleshooting overheating problems and my radiator was pretty grungy so i gave it a try...twice. each time i put about a cup of cascade in, brought it up to temp and then let it idle for about 20 mins. the second time i drove it around for those 20 minutes. flushed with water and there is definately a big improvment (i can finally see aluminum in the rad!) but i also still see rust/chunks. peaking inside the radiator i'd say its about 90percent aluminum and 10percent rust at this point. do i keep going? at what point do i assume the radiator is trashed?
fyi, i've already replaced the thermostat as part of the diagnosis of my overheating problems. i bought the new t-stat from a ford dealer, but i can't remember if it had the infamous rubber seal...might have to take it back out and check.
fyi, i've already replaced the thermostat as part of the diagnosis of my overheating problems. i bought the new t-stat from a ford dealer, but i can't remember if it had the infamous rubber seal...might have to take it back out and check.
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Joined: Sep 2008
Posts: 1,840
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From: On the prairie
The only time I've used cascade is for a bad oil cooler that coats everything in sludge. I'm not sure that it works as well for removing corrosion and scale. Some commercial versions have a mild acid solution that seems to work pretty good. If cascade works for it though, by all means keep us posted.
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