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Old 07-11-2020, 08:29 PM   #66 (permalink)
Xist
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Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,186

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 34.2 mpg (US)

Gramps - '04 Toyota Camry LE
90 day: 35.39 mpg (US)

Don't hit me bro - '05 Toyota Camry LE
90 day: 29.44 mpg (US)
Thanks: 7,225
Thanked 2,217 Times in 1,708 Posts
I do not know what in the world happened to my images, but I put them back!

This was my first test:
I sealed a funnel in one hole, put a rubber stopper in the other, and neither heater core leaked. I left them for hours.

This was my first test:

I sanded down a Schrader valve, put it in one hole, put a rubber stopper in the other, held them in place with mending braces, and used a bike pump to pressurize the heater core to 16 PSI, what the cooling system is rated.

Both leaked out within a few minutes.

I may have lost my images inexplicably, but the explanation was still there!
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