Blew somethin out, pouring coolant

[motoking_1990]

That sounds like hard work...
Smarter/lazy man way.. I plug off the 1/2" hose coming out of the radiator and plug this into the 1/2" hose coming off the expansion tank
Made mine out of 3/8" npt stuff.... Got the gauge from Napa rest is air compressor stuff and barbed hose fittings... I have swapped barbed hose for AN to npt to chexk fuel tank for leaks

As long as you control the pressure that's fine. But if you get too much pressure you will have more problems than what you started with. Like headgaskets that are almost done for or intake gaskets ( not just duramax ). Don't remember how much pressure is safe. I'm thinking your only supposed to put 30 lbs to it. It's been a couple years since I have had to use one.

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[malibu795]

As long as you control the pressure that's fine. But if you get too much pressure you will have more problems than what you started with. Like headgaskets that are almost done for or intake gaskets ( not just duramax ). Don't remember how much pressure is safe. I'm thinking your only supposed to put 30 lbs to it. It's been a couple years since I have had to use one.

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Radiator cap is relief valve also allows you to test it to make sure its lifting

Went with 60# so I can test intake plumbing as well

 

[motoking_1990]

That sounds like hard work...
Smarter/lazy man way.. I plug off the 1/2" hose coming out of the radiator and plug this into the 1/2" hose coming off the expansion tank
Made mine out of 3/8" npt stuff.... Got the gauge from Napa rest is air compressor stuff and barbed hose fittings... I have swapped barbed hose for AN to npt to chexk fuel tank for leaks

This is the tool I was talking about and it's 20 lbs.

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