VALVE CLEARANCE ADJUSTMENT
Note. Hydraulic valve lifters are used, no valve adjustment is required. When valve and/or valve seat is machined, valve clearance is reduced and may cause improper valve operation. Valve lifter must be collapsed and clearance checked.
- Position piston No. 1 at TDC of compression stroke. Slowly apply pressure until valve lifter is completely collapsed on intake valve No. 1.
- Measure clearance between rocker arm and tip of valve stem while holding lifter in collapsed position. If clearance is not within specification, replace valve, grind valve stem or replace other components as necessary. See «COLLAPSED VALVE LIFTER SPECIFICATIONS»(ref-1331-S25588127012000031300000) table. COLLAPSED VALVE LIFTER SPECIFICATIONS Application In. (mm) All Valves .088-.189 (2.23-4.77)
- Repeat procedure for exhaust valve No. 1, exhaust valve No. 3, intake valve No. 2, exhaust valve No. 6, and intake valve No. 4. Rotate crankshaft 360 degrees (one revolution). Repeat procedure for intake valve No. 3, exhaust valve No. 2, intake valve No. 5, exhaust valve No. 4, intake valve No. 6, and exhaust valve No. 5.