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Joseph Earl

Air in cooling system

Home away from home

Does anyone have any advice for purging the air from the cooling system after a complete flush? My thermostat (new) doesn't seem like it ever opened- I may have air trapped in the head. 22nd Series 327.

Thanks!

Posted on: 2012/4/9 20:46

Joey

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"If chrome got me home, I'd for sure still be stuck somewhere."

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David Grubbs

Re: Air in cooling system

Home away from home

I always drill a small hole in the thermostat on my 51 288 to take care of the air bubbles. It won't hurt the cooling ability. A 1/8" drill will work wonders.

Posted on: 2012/4/9 21:13

Joseph Earl

Re: Air in cooling system

Home away from home

Thanks, David. I think I'll try that.

Posted on: 2012/4/9 22:17

Joey

(?=#=?)

"If chrome got me home, I'd for sure still be stuck somewhere."

[url=http://pac

David Grubbs

Re: Air in cooling system

Home away from home

just be sure to remove the thermostat before you drill a hole in it. Water pumps don't like metal shavings....

Posted on: 2012/4/10 16:05

Tim Cole

Re: Air in cooling system

Home away from home

I also always drill a bleed hole in any thermostat that doesn't have a jiggle valve.

In addition on Packards when the new thermostat allows it I drill two 3/16-1/4 inch holes in it. This slows the warm up a bit, but provides a safety valve in case the unit sticks closed. Those old motor blocks can crack around the valve seats if they get too hot.

Posted on: 2012/4/10 17:32