Flushing Radiator... [message #225783] |
Tue, 15 October 2013 19:23 |
mojoe
Messages: 319 Registered: November 2012 Location: Monroe, NC
Karma: 0
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I need to flush the radiator before it gets cold. Has 10 year +- coolant.
Guess its still sort of working since the block has not cracked, but then again it has not been that cold in NC the last few years.
Anyone have an easy way to go about this?
How much coolant should it take?
Thanks in advance.!
Joe Kemenczky..
1975 Eleganza ll " Odie " 75,000 miles..
"When I was younger, I could remember anything, whether it had happened or not." - Mark Twain.
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Re: Flushing Radiator... [message #225790 is a reply to message #225783] |
Tue, 15 October 2013 19:39 |
JohnL455
Messages: 4447 Registered: October 2006 Location: Woodstock, IL
Karma: 12
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Modern glycol doesn't loose much freeze protection over time but the additive package is used up at 2 years leading to PH change and corrosion. I'd open the petcock, remove the cap and drain it in a litter box. Remove and clean the overflow tank. Close the petcock, fill with 50/50 ethylene glycol and distilled water or buy the pre mixed 50/50. If the radiator is 10 years neglected, might be better to remove and take to a radiator shop eventually than to try and home flush, which I don't support as being of much use. Be sure overflow is full and run with heat on till warm, shut off, let cool repeat until all air is out and reservoir at mark. This will work provided your 9# cap is good. The cap should be replaced every 5 years or so as the rubber seal and valve has a service life
John Lebetski
Woodstock, IL
77 Eleganza II
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Re: Flushing Radiator... [message #225791 is a reply to message #225790] |
Tue, 15 October 2013 19:45 |
mojoe
Messages: 319 Registered: November 2012 Location: Monroe, NC
Karma: 0
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Should I drain it, add water run the engine and get the coolant out of the block and drain again before adding new coolant?
Just thinking since it has sat for so long.
Joe Kemenczky..
1975 Eleganza ll " Odie " 75,000 miles..
"When I was younger, I could remember anything, whether it had happened or not." - Mark Twain.
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Re: [GMCnet] Flushing Radiator... [message #225815 is a reply to message #225800] |
Wed, 16 October 2013 07:30 |
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SeanKidd
Messages: 747 Registered: June 2012 Location: Northern Neck Virginia
Karma: 4
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Be sure to drain the radiator and bring recovered coolant to proper recycling center, ethylene glycol is extremely dangerous to the environment. The flush n fill kits prevents ability to properly recover the contaminants.
Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers
[Updated on: Wed, 16 October 2013 07:30] Report message to a moderator
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