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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: p7387 on November 09, 2015, 11:32:44 am

Title: Filling radiator with coolant, proper level
Post by: p7387 on November 09, 2015, 11:32:44 am

I recently repaired a leak where the upper heater hose attaches to the radiator by soldering (prior post)

How much coolant should i add to the radiator?
With the radiator cap off and the motor running and coolant apparently circulating (i could see coolant pouring from the upper heater hose into the radiator) i added enough coolant to the radiator to just cover the upper heater hose inlet. Is this level ok or should it be filled up to the neck?

Thanks

Title: Re: Filling radiator with coolant, proper level
Post by: zieg85 on November 09, 2015, 11:48:02 am

To the top

Title: Re: Filling radiator with coolant, proper level
Post by: frotosride on November 09, 2015, 11:58:44 am

And don't forget to fill the over flow. This way any bubbles will work their way out and more fluid can seep in. But always fill to the top no matter what engine.

Title: Re: Filling radiator with coolant, proper level
Post by: oldblue76 on November 09, 2015, 11:59:17 am

Fill to the top. Run your motor for a couple of minutes. After motor cool top off radiator again and make sure your reservoir is at the proper level.

Title: Re: Filling radiator with coolant, proper level
Post by: philo_beddoe on November 09, 2015, 01:37:14 pm

Exactly, fill until full.  And fill res to full line.