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Flushing coolant system?

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Old 07-06-2012, 06:51 PM
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Originally Posted by Delta

100 degree weather on just water I'm Miami gridlock with out electric fan and my old Cooling system wouldn't touch 210. That's with a proper tstat and a laser temp gun. If you don't have a new radiator it's best to just remove the lower radiator hose the petcocks like to get brittle and break
I forgot to add that this way you can flush the block and the radiator separately. Thus keeping all the crap in the block from clogging the radiator and vise versa and don't forget to use coolant
Old 07-06-2012, 07:25 PM
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Originally Posted by Delta
100 degree weather on just water I'm Miami gridlock with out electric fan and my old Cooling system wouldn't touch 210.....
Well, you may be lucky. Running plain water will not only rust your radiator but will also destroy your water pump bearings... And if you lived in Northeast like some of us, it can also destroy a bunch of other stuff along the way...
Old 07-06-2012, 08:29 PM
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Originally Posted by Delta
1just remove the lower radiator hose the petcocks like to get brittle and break
Agreed. A tiny drain in an awkward place. If you DO get it loose, you risk some piece of crud jamming in there and you can't close it. Also on the right day everything can go wrong and you have a real mess. (as said^)
Old 07-06-2012, 08:29 PM
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Don't forget to add 3.5 gallons of coolant mix!

Last edited by BigBear; 07-06-2012 at 08:31 PM.
Old 07-06-2012, 08:42 PM
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I hope the OP is not reading this thread and thinking it's safe to run straight water all the time.....flushing the system with straight water is one thing, running straight water is a .
Old 07-06-2012, 08:55 PM
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X2^ Antifreeze is "anti Boil" also. Also I believe there are issues with plain water and aluminum in that "environment". (heat and pressure), not sure about that though.

I did once have an aluminum pump housing rot through on a Bonneville.
Old 07-06-2012, 09:42 PM
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Originally Posted by Kalali

Well, you may be lucky. Running plain water will not only rust your radiator but will also destroy your water pump bearings... And if you lived in Northeast like some of us, it can also destroy a bunch of other stuff along the way...
I'm not sure you read everything before you jumped the gun I said don't forget to use coolant I had water in it on my way to the auto parts store so calm down my radiator and Channels are rust free
Old 07-06-2012, 09:47 PM
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Originally Posted by djb383
I hope the OP is not reading this thread and thinking it's safe to run straight water all the time.....flushing the system with straight water is one thing, running straight water is a .
My car had 1 previous owner and he ran it on straight water for 100k+ miles I was lucky enough that nothing went wrong but I do use coolant
Old 07-06-2012, 09:53 PM
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Originally Posted by Delta
I'm not sure you read everything before you jumped the gun I said don't forget to use coolant I had water in it on my way to the auto parts store so calm down my radiator and Channels are rust free
All the training is paying off i see...lol...
Old 07-06-2012, 09:57 PM
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Originally Posted by freegdr
All the training is paying off i see...lol...
Nothing better to do. No money no play
Old 07-06-2012, 10:09 PM
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Don't buy that 50/50 mix garbage.

Stop at a grocery store and get distilled water for $.75 per gallon.

Much cheaper!
Old 07-06-2012, 10:16 PM
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Originally Posted by Gee oh Dee
Don't buy that 50/50 mix garbage.

Stop at a grocery store and get distilled water for $.75 per gallon.

Much cheaper!
X2
Old 07-06-2012, 11:11 PM
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Why use distilled water?
Old 07-06-2012, 11:18 PM
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Originally Posted by 944.0
Why use distilled water?
It doesn't have all the minerals and stuff in it that start to clog up your radiator
Old 07-06-2012, 11:24 PM
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Originally Posted by 944.0
Why use distilled water?
Helps prevent scaling and what not 90% of the reasons have been debunked by science but it's cheap enough that it's just easier to use


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