coolant change

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  #1  
Old 12-08-05, 12:14 PM
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coolant change

Sound right?
1-drain petcockthen close
2-fill with water and run with heater on till get heat
3-when cool = drain petcock and close
4-3.5 qts coolant (for a system that is 7 qts) in radiator and top with water
5-clean reservoir.
6-run till heater throws heat-cool
7- top off with water and 50/50 in reservoir
Prefer to not use flush material-ok?
 
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  #2  
Old 12-08-05, 03:12 PM
dabirdzR?T
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ok, but when you refill, use distilled water, not tap water.
 
  #3  
Old 12-09-05, 06:58 AM
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Your method seems OK to me, but I suspect that most people drain and run water though the radiator until it looks clean.
 
  #4  
Old 12-09-05, 08:33 AM
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coolant

I'll use distilled like I do with the battery and will flush till clean-thank you both.
 
  #5  
Old 12-09-05, 11:23 AM
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This bears repeating. The procedure below is the method I use for every car I own. It is done on a cold engine.

1. Drain fluid
2. Remove the thermostat
3. Reinstall the t-stat housing and upper radiator hose
4. Disconnect upper radiator hose at radiator
5. Flush system with garden hose through upper radiator hose until water runs clear
6. Disconnect heater hoses, open heat valve
7. Flush heater core
8. Flush overflow tank
9. Drain as much water as possible from cooling system
10. Siphon water from overflow tank
11. Reinstall thermostat
12. Button everything back up
13. Refill cooling system with specified amount of antifreeze, bring up to level with water, preferably distilled
14. Run car, top off coolant
15. Keep adding water as required every morning until system is topped off.

It's okay not to use flushants. This job is tough to do in this cold, though.
 
  #6  
Old 12-09-05, 12:18 PM
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coolant

You are doing it the way it should be done.
No longer can get into things like I used to so will have to short cut it.
Can't let the car do me in. I need more repairs than it does.
Thank you for the 'right way' and I hope it serves readers well.
 
  #7  
Old 12-09-05, 12:24 PM
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Everybody has their own way of doing it. Mine is the complete way. You'll do okay with your method, though you may end up with a bit more antifreeze than 50-50 with the residual coolant left in the system with your method, but not enough to fuss over.
 
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