Does anyone here flush coolant the old fashioned way?
#1
Intermediate
Thread Starter
Does anyone here flush coolant the old fashioned way?
When I do my coolant flush I still do it the old way:
1. Drain Coolant
2. Add 100% water to cooling system, start engine and let idle for 5-7 minutes with heater on full blast.
3. Repeat process 4-5 times.
4. When I add coolant at the end, I put in a 60% mixture to make a roughly 50% mixture.
It's more time consuming, but very easy. This was the method stated in old repair books, and a mechanic buddy of mine said they did it this way for many years.
Just wondering if I'm the only weirdo doing it this way.
1. Drain Coolant
2. Add 100% water to cooling system, start engine and let idle for 5-7 minutes with heater on full blast.
3. Repeat process 4-5 times.
4. When I add coolant at the end, I put in a 60% mixture to make a roughly 50% mixture.
It's more time consuming, but very easy. This was the method stated in old repair books, and a mechanic buddy of mine said they did it this way for many years.
Just wondering if I'm the only weirdo doing it this way.
#3
I also do it the "old fashion" way
I've heard rumors that modern day "flushing" using pressurized machines can damage heater cores, radiators, etc.. Anyone else hear of this?
Chris
I've heard rumors that modern day "flushing" using pressurized machines can damage heater cores, radiators, etc.. Anyone else hear of this?
Chris
#7
Intermediate
Thread Starter
Originally Posted by actuary
Do you guys just drain it from the radiator? I can't seem to find the drain on the engine block.
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#9
Racer
I could never find the drain plugs, or they were inaccessible, so I did it old school, too. I didn't use tap water, though. I always have a stash of rain water in my basement that I use to water my plants (less dissolved minerals than tap), so I used that.
You can use the "compressed" air of a ShopVac to blow out an additional quart or two of coolant, allowing you to get more out with each drain. More details at:
https://www.clublexus.com/forums/maintenance/92160-98-00-gs400-compressed-air-coolant-flush-fill-process.html
You can use the "compressed" air of a ShopVac to blow out an additional quart or two of coolant, allowing you to get more out with each drain. More details at:
https://www.clublexus.com/forums/maintenance/92160-98-00-gs400-compressed-air-coolant-flush-fill-process.html