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  #1  
Old 02-04-2013, 07:12 PM
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Pop quiz

50 bonus points for the first answer

W123. Om617.912 (NA)

I NEED to know...

What is the operating pressure of the heater core?

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  #2  
Old 02-04-2013, 07:23 PM
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YES

there is operating pressure.

Operating pressure typically varies from 7 - 12 PSI, depending on many factors.
Note: I have seen much lower, and slightly higher on some good engines.

Maximum = blow off pressure is 17.4 PSI.


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  #3  
Old 02-04-2013, 07:32 PM
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Cha Ching!

Thanks!

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