| [GMCnet] Flushing Radiator [message #225811] |
Wed, 16 October 2013 01:17  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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Senior Member |
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I like to flush mine every 2 years. One way that I use is I pull the lower hose off the water pump, and let it hang down. I don't pull it off of the radiator, as it's more apt to be damaged. Slip it back on, and fill with water. Start the engine,and let it run for about 3 min with heater on. I continue to repeat until the water come out clean. I like to pull the block drains during at least one of the cycles. Then put 3 gals of antifreeze in after the last drain. Then top off with water. Make sure you fill your overflow tank to the proper level with 50/50.
Bob Dunahugh78 Royale4 Yenkos
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| Re: [GMCnet] Flushing Radiator [message #225817 is a reply to message #225811] |
Wed, 16 October 2013 08:25  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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G'day,
A few tips I've learned from others since I've been hanging around here:
1) Don't by the premixed 50/50! You're paying a premium price for water! - EmeryS
2) Use distilled water. - GeneD
3) The radiator is mounted in its frame with four rubber isolators. It is grounded to the engine through the 5/16 OD metal lines
that attach the cooler in the radiator to the transmission. If you have added an additional transmission cooler with rubber hoses
make sure the ground still exists by jumpering the metal lines with a piece of wire and some clamps or you ain't got no ground! If
you have installed JR's braided SS engine oil cooler lines you've got a ground through those lines.- Me
Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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