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Old 08-05-2005, 09:14 AM
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how to clean a radiator

hello everyone i am trying to find a way to clean out my used firebird radiator before installation, anyone have and good tips of what i should do.?

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Old 08-05-2005, 10:21 AM
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If you mean cleaning the rad core, blow it out with compressed air and then run water from the garden hose through it.

A pressure washer might be a bit hard on the fins.
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Old 08-05-2005, 11:26 AM
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Your local rad shop0 can dip them and clean them inside and out. I flush mine in the vehicle. You buy rad flush from your local parts store. Run it for the recommended time. Then flush the system with clean water from a garden hose..
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Old 08-05-2005, 06:23 PM
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I agree. I use the flush solution, then rinse with water. I used a few brief "blasts" of water on full pressure to knock loose any big particles.
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Old 08-05-2005, 07:55 PM
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If you have the rad out and you want to do it yurself, lay it down flat and put the cap on. Fill it with a mixture of rad flush and very hot water.
TIME FOR A CAUTION Use rubber gloves and glasses or even better a full face shield and glasses. This stuff is caustic and will burn you just as bad as acid.
Let it soak for a while, pour it out and replace with a fresh batch. soak, drain and flush with water in the reverse of the normal water flow.
If it's in the car, follow the instructions on the flush can. When your done, backflush it as best you can.
Even better solution is take it to a rad shop and have them strip it and rod it.
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Old 08-05-2005, 08:34 PM
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rad help

what does the radiator flush consists of, can i get it at my local parts store? and yes it is out of the car. i heard clr was ok to use also is that true or even baking soda?? thanks to all
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Old 08-05-2005, 09:16 PM
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People,

Out here in CA we can not do any of these steps that you are talking about. The reason is our gutter water will drain into the water-ways and kill everything living in or near the water. If we do anything like you talk about we must catch all the water and take it to a recycle center. So for that reason I take my radiators to a shop. They will do a flow test on the radiator and if it needs to be cleaned they will take the top off and run a thin metal rod down each tube. Then they will solder the tank back on and paint the outside. Yes, it is costly but I think it is well worth the price.

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Old 08-09-2005, 04:23 PM
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I just had the rad from my 94' s10 rodded and it was $50. Way better that $250 for a new one!
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Old 06-13-2010, 06:39 AM
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a solution

This thread is quite old now, but for anyone who comes upon it I just found a site saying to mix 1 gallon of very hot water with 1 pound of baking soda as a flush solution if you have significant build up.
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