The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 55.2-59 59 P/S CPP conversion

tmoble · 01-27-2019, 04:08 AM

if it's acting like no power assist at all, disconnect the pressure line at the box, point it into a large pan and start the engine. be ready to shut it off again quickly. See what it pumps. it's real easy to install the valve incorrectly. One popular deal is to install the o-ring in the wrong groove.

here it is properly installed:
https://www.speedwaymotors.com/Musta...-GPM,5852.html

this is the most common error with these hoses and pumps. Don't ask how I know this.

01-27-2019, 04:08 AM	#19
tmoble Registered User Join Date: Feb 2009 Location: Glendale, Az Posts: 1,062	Re: 59 P/S CPP conversion if it's acting like no power assist at all, disconnect the pressure line at the box, point it into a large pan and start the engine. be ready to shut it off again quickly. See what it pumps. it's real easy to install the valve incorrectly. One popular deal is to install the o-ring in the wrong groove. here it is properly installed: https://www.speedwaymotors.com/Musta...-GPM,5852.html this is the most common error with these hoses and pumps. Don't ask how I know this.