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Check and adjust valve clearances

Check valve clearances should be after the removal and installation of camshafts, valve components, as well as the symptoms that indicate a violation of the gaps (for example, high mileage).

PERFORMANCE ORDER

Warm up the engine and stop it. Remove the locker right front wheel (see chap. Body) and the cylinder head cover (see. Section Removal and installation of the cylinder head cover). Rotate the crankshaft pulley clockwise so that the mark (2) on a pulley TDC coincides with the indicator (1) on the front cover of the TDC of the cylinder. Lobes of the cams (2 intake and 2 on the issue) the valve of the first cylinder are pointing out (as a continuation of the axis of the valve). Otherwise rotate the crankshaft pulley for one revolution. With the blade of the probe, measure the gaps between the cams and the respective valve lifters in the diagram. Record results and turn the crankshaft pulley one more turn. Measure the remaining valve clearances. Compare the data with the requirements of the Specifications (for a warm engine) and if necessary adjust the valve clearances as described below. Adjust the valve clearances is done by adjusting the valve lifters. Adjust the valve clearances, as well as measurement of the thickness of the wall of the working pushers should be done when the engine is warm. Remove relevant camshaft (see. Section Removal, check and installation of camshafts) and remove the appropriate jacks. Measure by a micrometer thick middle part of the working wall pusher and write down the value obtained. To calculate the required wall thickness working pusher add to the measured thickness of the wall of the old working pusher to the measured valve clearance and subtract the result obtained from a standard-size valve clearance (see. Specifications). Identify the thickness of the wall of the pusher can be working on the two-digit numeric tag, embossed on the inside walls of the working. The label means hundredths of a wall thickness of 3 mm, for example, the label "04" corresponds to the wall thickness of 3.04 mm. Available valve lifters with thick walls working from 3.00 to 3.68 mm and a pitch of 0.02 mm. Install the selected tappet and camshaft. Rotate the crankshaft manually for a few revolutions and measure the valve clearance (when engine is cold). If necessary, adjust it again. After the adjustment, make sure that the valve clearances meet the requirements of the Specifications when the engine is warm.