How to test my cmi header
#7
Gold Member
Gold Member
You should check a post I did in GD asking the same question. Several ways to skin it. I ended up getting an air gauge as recommended by one of the members in that post and going that route.... Worked great and I didn't have to take the headers off..
#9
Gold Member
Gold Member
I tested them at 30psi.
I Let them sit overnight.
i took the hose end off the thermostat housing, used he right combination of fittings and connected it there. Then I stole one of my caps off my other header, capped off the water hose on top of the header, filled it to 30 psi and let it sit.
I will also say, I drained the water before I did that so that if there was a leak it didn't force water into the heads...
I Let them sit overnight.
i took the hose end off the thermostat housing, used he right combination of fittings and connected it there. Then I stole one of my caps off my other header, capped off the water hose on top of the header, filled it to 30 psi and let it sit.
I will also say, I drained the water before I did that so that if there was a leak it didn't force water into the heads...
Last edited by seafordguy; 02-23-2016 at 06:08 AM.