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Old 08-08-2018, 11:00 PM
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Default Coolant removal from top of block?

Hi all,

I've been wanting to do a proper full coolant replacement which ideally would entail removing the block drain plugs. However, I tried this on the driver's side plug and it is stuck. I fear trying to remove it would only break it off.

So, as an alternative, I was wondering if either by removing the water pump if a stiff plastic tube could be inserted into the block to access the coolant that can normally only be drained by removing the block drain plugs. With the tubing inserted, the coolant could be drawn out by a small pump and/or siphoned out.

I was thinking of replacing the water pump as part of preventative maintenance so taking off the water pump would be for more than just the coolant change.

Has anyone tried this? Thoughts? Or should I just shell out the money and have a shop do a proper flush and refill of the coolant?

Thanks,

Christine
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Old 08-10-2018, 04:27 AM
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Originally Posted by christine_208 View Post
Hi all,

I've been wanting to do a proper full coolant replacement which ideally would entail removing the block drain plugs. However, I tried this on the driver's side plug and it is stuck. I fear trying to remove it would only break it off.

So, as an alternative, I was wondering if either by removing the water pump if a stiff plastic tube could be inserted into the block to access the coolant that can normally only be drained by removing the block drain plugs. With the tubing inserted, the coolant could be drawn out by a small pump and/or siphoned out.

I was thinking of replacing the water pump as part of preventative maintenance so taking off the water pump would be for more than just the coolant change.

Has anyone tried this? Thoughts? Or should I just shell out the money and have a shop do a proper flush and refill of the coolant?

Thanks,

Christine
I did the swap a couple of weeks ago by simply removing the top radiator hose and catching the dexcool in some buckets while running water into the radiator via a garden hose. Once it started coming out clear I just let it continue cycling water through the system for about 45 minutes to be sure all the dexcool was out. Then I stopped everything where it was and drained the water from the radiator and refilled it with the green stuff (full strength). Lastly I burped any remaining air pockets out by parking nose up and slightly left to get the radiator opening at the highest point above everything else. So far I've had no issues and I check it every time I fill up with gas.
Was there a specific reason why you wouldn't do it this way?
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Old 08-10-2018, 09:56 AM
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I did the swap a couple of weeks ago by simply removing the top radiator hose and catching the dexcool in some buckets while running water into the radiator via a garden hose. Once it started coming out clear I just let it continue cycling water through the system for about 45 minutes to be sure all the dexcool was out. Then I stopped everything where it was and drained the water from the radiator and refilled it with the green stuff (full strength). Lastly I burped any remaining air pockets out by parking nose up and slightly left to get the radiator opening at the highest point above everything else. So far I've had no issues and I check it every time I fill up with gas.
Was there a specific reason why you wouldn't do it this way?
Oh, I was hoping to come up with a less messy way of doing the flush and refill. Also my local water is a bit hard and would like to know I got it full of distilled water instead of the well water.

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Old 08-10-2018, 10:37 AM
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My local pet stores call our water "liquid rock" in terms of fish keeping because it's so hard. The solution to pollution is dilution. After draining the garden hose water from the lower radiator hose I filled it with distilled water and drove around. I drained that and was going to refill and repeat with distilled water but it looked clean enough to test for hardness with and aquarium test kit. Without going that crazy (even I have limits), I just filled it with 2 gallons of concentrate and topped it off with distilled water. That was 4 years ago and the coolant looks clear, smells, and tests fine.
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Old 08-10-2018, 04:18 PM
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Oh, I was hoping to come up with a less messy way of doing the flush and refill. Also my local water is a bit hard and would like to know I got it full of distilled water instead of the well water.
Ih ok. I hadn't considered what condition the water you have access to may be in. I have well water but it's highly filtered before it reaches the house. It's aquarium worthy, to say the least 😁. So to me, my method just seemed more convenient, and the mess of it was no bother. Hope you figure out a way to purify your water as it goes in. Would be much healthier for the innards of your cooling system. Let us know if you get solve that one.
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