Best way to flush coolant system?
#1
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Location: Huntsville, AL, USA
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Best way to flush coolant system?
I searched and couldn't find a good answer. What's the best and easiest way to completely flush the coolant system. Mine has oil and various other crap in it from when I changed the head gasket. THanks!
#3
Honda-Tech Member
Re: Best way to flush coolant system? (Jorsher)
1. Drain.
2. Fill with deionized water.
3. Run for a little while and repeat steps 1 & 2 until nothing but water comes out.
4. Drain.
5. Refill with fresh coolant.
2. Fill with deionized water.
3. Run for a little while and repeat steps 1 & 2 until nothing but water comes out.
4. Drain.
5. Refill with fresh coolant.
#7
Honda-Tech Member
Re: (Mr. Choi)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. Choi »</TD></TR><TR><TD CLASS="quote">use distilled water not deionized.</TD></TR></TABLE>
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#9
Re: (schlit)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by schlit »</TD></TR><TR><TD CLASS="quote">I thought there was such a thing as a chemical flush you could run through your system. try looking for that. definitely use distilled</TD></TR></TABLE>
Dont use a flush unless yau are patient enough to get it all out! Most of these have a mild acid in it that will eat at the aluminum components, if left in. I use lots of waterhose water to do the flushing then follow that with some air to dry it out. then the 50\50 mix.
Dont use a flush unless yau are patient enough to get it all out! Most of these have a mild acid in it that will eat at the aluminum components, if left in. I use lots of waterhose water to do the flushing then follow that with some air to dry it out. then the 50\50 mix.
#10
Re: (forced00si)
Just do what someone above told you but you don't have to be **** about it...
You do not have to use distilled water...
Adjust your cabin heater control on MAXIMUM HOT...
Drain the system using the lower drain bolt on the radiator... then put in some fresh water to compensate drained coolant... then start the engine and let it idle for few minutes... then shut off the engine and let it cool down a bit (5-10 minutes)
then repeat those steps 2-3 times... REMEMBER NOT TO USE COLD WATER WHEN ENGINE IS WARM... IT CAN KILL YOUR BLOCK... JUST USE VERY WARM WATER (HOT WOULD BE PERFECT BUT BE CAREFUL WITH FINGERS)
When you have repeated those steps 2-3 times, do the final drain...
Take off the radiator cap and loosen the radiator drain bolt... drain and clean the coolant reservoir...
unscrew the main drain bolt (it is placed 1-2 inches to the left from the oil filter if looking from drivers point of view)...
Let all the coolant / water drain... put everything in place (drain bolts) and replace washers if necessary...
Start to add new coolant (50:50 mixture is a MUST)... and that is it... I assume you know how to fill up the coolant system...
REMEMBER TO LET YOUR CABIN HEATER CONTROL BE ADJUSTED ON MAX HEAT ALL THE TIME
You do not have to use distilled water...
Adjust your cabin heater control on MAXIMUM HOT...
Drain the system using the lower drain bolt on the radiator... then put in some fresh water to compensate drained coolant... then start the engine and let it idle for few minutes... then shut off the engine and let it cool down a bit (5-10 minutes)
then repeat those steps 2-3 times... REMEMBER NOT TO USE COLD WATER WHEN ENGINE IS WARM... IT CAN KILL YOUR BLOCK... JUST USE VERY WARM WATER (HOT WOULD BE PERFECT BUT BE CAREFUL WITH FINGERS)
When you have repeated those steps 2-3 times, do the final drain...
Take off the radiator cap and loosen the radiator drain bolt... drain and clean the coolant reservoir...
unscrew the main drain bolt (it is placed 1-2 inches to the left from the oil filter if looking from drivers point of view)...
Let all the coolant / water drain... put everything in place (drain bolts) and replace washers if necessary...
Start to add new coolant (50:50 mixture is a MUST)... and that is it... I assume you know how to fill up the coolant system...
REMEMBER TO LET YOUR CABIN HEATER CONTROL BE ADJUSTED ON MAX HEAT ALL THE TIME
#14
Re: (schlit)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by schlit »</TD></TR><TR><TD CLASS="quote">
Yes, there is a drain plug on the block as well as one on the radiator. Typically, you'll never drain the block unless you've got some major stuff in the system.
If you live anywhere with hard water I would advise using distilled, Hard water will leave deposits in your system just like it leaves mineral deposits on your sinks/tubs/etc.
Really soft water will have the opposite effect...it eats away at pipes. Distilled is the safest if you dont know what kind of tap water you have in your area.</TD></TR></TABLE>
That is when you make the mixture with antifreeze...
But for cleaning the system, any water is more than good as long as it's clean...
Antifreeze has some chemicals that do not allow rust, dirt and so on, so even if you mix the mixture with hard water, antifreeze will keep the system clean...
Because antifreeze not only keeps the coolant from freezing, it also cleans the system and keeps it rust free and any minerals that hard water can leave behing are destroyed... that's why antifreeze is much thicker than plain water...
It is the same as cleaning your car... you wash it with plain water, then you wipe off those water stains (from hard water) and then wax it and it is CLEAN... right?
So for cleaning use CLEAN water and don't worry... but when you finally clean your system, when you mix the coolant make sure you use 50% of antifreeze and 50% of DISTILLED WATER...
Yes, there is a drain plug on the block as well as one on the radiator. Typically, you'll never drain the block unless you've got some major stuff in the system.
If you live anywhere with hard water I would advise using distilled, Hard water will leave deposits in your system just like it leaves mineral deposits on your sinks/tubs/etc.
Really soft water will have the opposite effect...it eats away at pipes. Distilled is the safest if you dont know what kind of tap water you have in your area.</TD></TR></TABLE>
That is when you make the mixture with antifreeze...
But for cleaning the system, any water is more than good as long as it's clean...
Antifreeze has some chemicals that do not allow rust, dirt and so on, so even if you mix the mixture with hard water, antifreeze will keep the system clean...
Because antifreeze not only keeps the coolant from freezing, it also cleans the system and keeps it rust free and any minerals that hard water can leave behing are destroyed... that's why antifreeze is much thicker than plain water...
It is the same as cleaning your car... you wash it with plain water, then you wipe off those water stains (from hard water) and then wax it and it is CLEAN... right?
So for cleaning use CLEAN water and don't worry... but when you finally clean your system, when you mix the coolant make sure you use 50% of antifreeze and 50% of DISTILLED WATER...
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