Cooling problems, sort of
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Senior User
Joined: Jun 2013
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From: Lake County, OH
Exactly. Once the gold gels up, I don't see any way to get it all out without replacing the coolers. More and more I don't like the idea of mixing 2 different coolants if you can't get one completely out. If you attempt to use VC-9 and it starts to move a lot of stuff around, I think your headed to a plugged cooler anyway. I think I'd rather be knee deep in water from flushing the thing all day long than try to do it a quicker way. Right now my temps are fairly good so I'm still thinking and searching for a place to get this done.
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Senior User
Joined: Jun 2013
Posts: 172
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From: Lake County, OH
Fred, the VC9 flush done right will clear all ,only if the oil Cooler is not that plugged . Hype on all this make me want to just SHr3em. . do the flush, vc9,simple green, pull the block plugs and thermo, flush well with tap, and then get down and dirty with distilled flush20 gal flush pulling block plugs, don't for get the Heater core line. its going to be a wet day.
Hotshot
Joined: Dec 2003
Posts: 15,368
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From: Stuttgart, Ar
Well......by gel I mean goo, not the hard deposits that form inside the oil cooler fins. I mean snotty goo. I don't know if it takes a chemical flush to remove that junk and I certainly don't advocate a chemical flush UNLESS you have a temp problem and plan on changing your oil cooler. I wonder if a simple green flush like what is used to clean up after an oil cooler rupture would remove the goo without cutting a bunch of rust/scale/deposits loose inside the cooling system.....
Hotshot
Joined: Dec 2003
Posts: 15,368
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From: Stuttgart, Ar
I've read about VC-9, the good and bad, worries me a bit. My temps are pretty good right now but kinda weird. At 70 degrees outside the delta can be as high as 10 degrees. At 95 outside the delta can be as low as 3 or 4 degrees but the temps are above 200. like 204/207. I've seen 197/207 even. I'm wondering if these are good enough to just do a lot of flushing or should I really consider the VC-9?
Fleet Owner
Joined: Nov 2003
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The "Restore" cleaner is for cleaning out the gelled coolant. The "Restore Plus" is for the rust and scale (like VC9) and is a pretty harsh cleaner.
As stated by others above, I also would try a water flush first since you have pretty good temperature values.
As stated by others above, I also would try a water flush first since you have pretty good temperature values.
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Senior User
Joined: Jun 2013
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From: Lake County, OH
Like you said, flush and fill. That's what we're going to do.
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