When installed, this pump shaft sleeve restores the fit and integrity between the pump shaft and the valve body. As this sleeve is not currently available, the rebuilder is forced to buy a new valve body.
Before installing the sleeve, notice that a witness mark has been machined into one end of the sleeve, aligned with the machined lube hole. This witness mark designates the end that protrudes out of the valve body and provides a visual aid for alignment of the lube hole during installation.
Press the sleeve into the valve body on the face that contains the two locator pins. The witness mark and the lube slot should be aligned with the crossport in the valve body. The sleeve should be left protruding from the valve body by .220".
Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.