A probable cause for this condition is the intake rocker shaft
clearance is excessive at the number two cylinder. To correct this
condition, adjust the valve clearances or replace the cam holder and
the adjoining intake rocker arm shafts at the number two cylinder.
1) Measure the intake valve clearance at the number two cylinder intake valve closest to cylinder number one (Figure 1). If the clearance is more than .040 mm, replace the cam holder. If the clearance is less than .040 mm, go to next step.
2) Adjust the valve clearance (Figure 2). If no adjustment screw threads are visible above the locknut, replace the cam holder.
Some or all of this information was provided by the Automotive
Parts Remanufacturers Association (APRA). For more information on
technical bulletins available through APRA call 703-968-2772 or visit www.AutoBulletins.com.