How to adjust the valve clearance of a 4JB1 engine?
1 Answers
Rotate the flywheel until the two rocker arms of the cylinder to be adjusted open and then just close the valve, with the two rocker arms parallel. Turn the flywheel slightly in its original direction (to prevent the cam from pushing the push rod) to adjust the valve clearance, because the valve opens once every two rotations of the flywheel, and the cam will not push the push rod.