The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-55.1 Pressure bleeding

dsraven · 11-03-2021, 08:05 PM

yeah, I'm of the same mind with 1project and mr48. without any instruction as to which port is front/rear it is a guess and hope thing. like said though, maybe worth it to swap the ports/lines and see if that fixes it. those are short lines from the master to the prop valve so possibly a couple of new slightly longer lines could be installed and bled at the prop valve through gravity with those fittings left slightly loose till no bubbles then torqued up. that way you don't introduce air to the rest of the system if done quickly. if you don't know what the master came from it would be hard to figure out.

11-03-2021, 08:05 PM	#48
dsraven Registered User Join Date: Nov 2010 Location: calgary alberta Posts: 7,884	Re: Pressure bleeding yeah, I'm of the same mind with 1project and mr48. without any instruction as to which port is front/rear it is a guess and hope thing. like said though, maybe worth it to swap the ports/lines and see if that fixes it. those are short lines from the master to the prop valve so possibly a couple of new slightly longer lines could be installed and bled at the prop valve through gravity with those fittings left slightly loose till no bubbles then torqued up. that way you don't introduce air to the rest of the system if done quickly. if you don't know what the master came from it would be hard to figure out.