﻿ Peugeot:: 406: Check and adjustment of gaps of valves

## 3.2.12. Check and adjustment of gaps of valves

Calculation of thickness of adjusting laying of the valve

 A. Inlet valve E. Final valve 1. The measured gap 2. A difference between 1 and 3 3. Normal gap 4. Thickness of the established adjusting laying 5. The calculated thickness of new adjusting laying

Check

PERFORMANCE ORDER
 1. Check of adjustment of valves needs to be made after emergence of knock of valves, capital repairs of the engine or at reduction of engine capacity. You make check and adjustment on the cold engine. 2. Tighten the emergency brake, lift a forward part of the car and remove the right forward wheel. 3. Remove plastic protection of a wing for access to a bolt of fastening of a pulley of the crankshaft. 4. Turn for a bolt of fastening of a pulley the crankshaft before combination of openings in a pulley and the block of cylinders and block a pulley an adjusting core. For simplification of a provorachivaniye of the crankshaft unscrew fuel nozzles. 5. Uncover a head of the block of cylinders. 6. Draw the scheme of the engine and number cylinders from 1 to 4. The cylinder 1 is from the transmission. On each cylinder draw inlet and final valves. Above each cylinder in the drawing draw two horizontal lines. On the line No. 1 write down the actual gap of all valves, and on the line No. 2 – the size to which it is necessary to change a gap for obtaining the required gap size. 7. Turn the crankshaft before full closing of the inlet valve of the cylinder 1, i.e. the cam-shaft cam on this valve has to look up. 8. Using the probe, measure a gap between the basis of a cam and a pusher. Make record of the actual gap on the line No. 1 opposite to the corresponding valve. 9. Repeat measurement for the remained seven valves, turning the crankshaft as required so that the cam of the checked valve was directed up. 10. Calculate a difference between the actual and required gap and write down on the line No. 2. 11. If all gaps are in the required limits, establish a cover of a head of the block of cylinders, establish a plastic covering under a wing, establish a wheel and lower the car. If the actual gap does not meet standard, it is necessary to make adjustment.