B2300 Regular Cab 2WD L4-2.3L VIN A (1997)
Caution: Prying against the camshaft pulley with the valve train load on the camshaft can break or damage the pulley. Therefore, the rocker arm
adjusting nuts must be backed off, or the rocker and shaft assembly must be loosened sufficiently to free the camshaft. After checking the camshaft
end play, adjust the valve clearance.
(1) Push the camshaft toward the rear of engine. Install a dial indicator so the indicator point is on the camshaft gear.
(2) Zero the dial indicator. Pull camshaft forward and release it. Compare reading with specifications. If end play is excessive, replace the thrust
plate.
(3) Remove dial indicator.
End play: 0.025-0.177 mm (0.001-0.007 in)
End play: 0.229 mm (0.009 in) Max