If an oil leak through the oil pan gasket cannot be eliminated by tightening its mounting bolts, it means that the gasket is severely deformed and must be replaced
The pressure reducing valve (fuel pressure regulator) is a container separated by a diaphragm on which is attached a valve that closes the fuel drain hole under the action of a spring.
Working cylinder of the clutch release drive GAZ-3110
The clutch slave cylinder is usually removed and repaired when defects associated with clutch squeezing appear