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06-22-2018, 10:08 AM
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#1 |
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Registered User
Join Date: Apr 2013
Location: Houston,Tx
Posts: 790
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radiator/engine flush
Whats up guys.. working on my 76.. I am wanting to do a good coolant flush. ive used the blue bottle before but not really impressed with it.. Ive been reading about using staright vinegar and CLR in the system to get all the crud out.. anybody here have any experience with that or can give me some advice.. much appreciated
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1966 C10 "Mary" 1972 C10 Cheyenne "Betty" https://67-72chevytrucks.com/vboard/...d.php?t=847364 1979 C10 Silverado "The BIG TEN" https://67-72chevytrucks.com/vboard/...d.php?t=841339 C10 Club Texas -HMIC |
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06-22-2018, 04:38 PM
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#2 |
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Registered User
Join Date: Oct 2013
Location: Maine
Posts: 2,376
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Re: radiator/engine flush
CLR doesn't do anything to the hard water stains in my bath tub. Good luck with that. Sweet truck though.
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76 Chevy K20 76 GMC K15 77 Chevy C10 77 Chevy K10 |
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06-25-2018, 05:14 PM
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#3 | |
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Registered User
Join Date: Apr 2013
Location: Houston,Tx
Posts: 790
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Re: radiator/engine flush
Quote:
lol
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1966 C10 "Mary" 1972 C10 Cheyenne "Betty" https://67-72chevytrucks.com/vboard/...d.php?t=847364 1979 C10 Silverado "The BIG TEN" https://67-72chevytrucks.com/vboard/...d.php?t=841339 C10 Club Texas -HMIC |
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06-25-2018, 11:17 PM
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#4 |
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Registered User
Join Date: Dec 2011
Location: Yuma Arizona
Posts: 1,525
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Re: radiator/engine flush
CLR works great on the hard water stains in my bath tub. You should have good results with that. Nice truck btw.
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06-26-2018, 12:08 AM
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#5 |
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Registered User
Join Date: Sep 2007
Location: Wichita Falls, Texas
Posts: 459
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Re: radiator/engine flush
I managed to eat a hole in my trans cooler with a flush. What a mess!!! Ruined the transmission.
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06-26-2018, 12:26 AM
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#6 | |
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Registered User
Join Date: Apr 2013
Location: Houston,Tx
Posts: 790
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Re: radiator/engine flush
Quote:
__________________
1966 C10 "Mary" 1972 C10 Cheyenne "Betty" https://67-72chevytrucks.com/vboard/...d.php?t=847364 1979 C10 Silverado "The BIG TEN" https://67-72chevytrucks.com/vboard/...d.php?t=841339 C10 Club Texas -HMIC |
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06-26-2018, 09:03 AM
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#7 |
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Registered User
Join Date: Oct 2013
Location: Maine
Posts: 2,376
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Re: radiator/engine flush
I actually have never bothered flushing a cooling system. I have never seen a sbc cooling system that was clogged. I have seen radiators with lots of corrosion. I just watch the temps and if it won't stay cool I will change the radiator.
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76 Chevy K20 76 GMC K15 77 Chevy C10 77 Chevy K10 |
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06-26-2018, 10:25 AM
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#8 |
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Registered User
Join Date: Jun 2008
Location: Moss Point,Ms.
Posts: 1,439
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Re: radiator/engine flush
The best way(for me) is to remove the 2 block plugs and flush it out as good as possible.
All the sludge settles in the bottom rails of the block and insulates it from the cooling system. The heater core holds sediment also. If you have a freeze plug out,there's another good chance to flush it out. This sludge is why machine shops boil blocks,along with getting the oil galleries clean too. Mike. 
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