Manual

Pushrod Length Checker Instructions
INS-29425
BEFORE ORDERING PUSHRODS: DUE TO VARIANCES IN ENGINE MACHINING PROCESSES AND CAMSHAFT
GRINDS, IT IS NOT UNCOMMON FOR PUSHROD LENGTHS TO VARY IN LENGTH FROM ONE BANK OR EVEN FROM ONE
CYLINDER TO ANOTHER. BEFORE ORDERING NEW PUSHRODS, CHECK THE PUSHROD LENGTH ON SEVERAL DIFFERENT
CYLINDERS AND ON BOTH SIDES OF THE ENGINE.
TOL-29400 6” - 12” Pushrod Checker / Cup Adj
TOL-29425 6” - 12” Pushrod Checker / Ball Adj
TOL-29450 6” - 9” Pushrod Checker / Cup Adj
STEP 2: BE SURE THAT THE ADJUSTER STARTING
POSITION IS SET AS DESCRIBED ABOVE. SCREW OUT
THE ENDS OF THE ADJUSTABLE PUSHROD UNTIL THEY
CONTACT THE ADJUSTER.
STEP 1: STARTING WITH CYLINDER NUMBER ONE,
ROTATE THE ENGINE UNTIL INTAKE LIFTER IS ON
THE CAMS BASE CIRCLE (OPPOSITE FROM FULL
LIFT). ASSEMBLE THE ADJUSTABLE PUSHROD TO
THE APPROXIMATE LENGTH, PLACE ONTO THE
INTAKE LIFTER AND BOLT THE ROCKER ARM TO
STAND. CHECK FOR PUSHROD TO CYLINDER HEAD
INTERFERENCE AND CORRECT IF ANY OBSTRUCTION
IS PRESENT.
STEP 3: ADJUST PUSHROD ENDS UNTIL DESIRED
LASH IS OBTAINED. REMOVE ROCKER AND MEASURE
PUSHROD. REPEAT PROCEDURE FOR THE EXHAUST
ROCKER.
BALL ADJUSTER
SET THE LASH ADJUSTER TO THE PROPER
STARTING POSITION.
CUP ADJUSTER
CUP STYLE ADJUSTER:
SET THE ADJUSTER ONE
FULL TURN DOWN FROM
SEATED POSITION.
BALL STYLE ADJUSTER:
SET THE TOP OF THE
ADJUSTER FLUSH WITH
THE TOP OF ADJUSTER
NUT.
NEVER ROTATE THE VALVETRAIN USING THE PUSHROD CHECKING TOOL.