Valve Lifter Assembly

Background: These are the noisy bastards responsible for start up ticking, phantom knock 

Click image to see how the oil distributes on the camshaft

Complete Lifter Assembly

Crimp connector off with adjusting piston out

(from left to right) Crimp connector, adjusting piston, check valve body, return spring, lifter housing

Same as above with Check valve assembly apart

Check valve assembly from top

Check valve assembly parts

Notice the 2 oil holes in the lifter housing and the adjusting piston. When reassembling make sure to put these holes 180° from each other. There is a open ring around the inside of the lifter body that lets the oil flow to the adjusting piston hole. Putting the oil holes inline can cause the lifter to seize since the oil 180°  from the oil hole never changes and can harden from the heat and wear.

Here you can see the open ring around the inside of the lifter body for oil to flow between the lifter body hole and the adjusting piston hole.

This is the Adjusting piston, notice the size of the top oil hole. This provides lubrication for the rocker arm rollers against the cam. Many people have had great success boring this hole out slightly to prevent sludge build up.

© Copyright 2000, 2001 Michael Hamilton. All Rights Reserved. 
Email me with any questions or comments mdhamilton@home.com 

This page was last edited 01/09/2001 12:46 PM