This section contains articles on the removal, disassembly, repair and assembly of the engine of VAZ-2115 (Lada Samara 115, sedan) and their modifications.
Engine design features On cars of the LADA SAMARA-2 family, an engine mod. 2111 - gasoline, four-stroke, four-cylinder, in-line, with a fuel injection system, with a camshaft located in the cylinder...
Possible engine malfunctions Possible engine malfunctions, their causes and remedies Cause of malfunction Remedy Engine won't start No pressure in the fuel rail: Do the following: clogged fuel lines flush and...
Useful tips for engine repair With a certain skill and care, many malfunctions of the engine and its systems can be quite accurately determined by the color of the smoke coming out of the exhaust pipe. Blue...
Changing engine oil and oil filter You will need: key «at 17», a special wrench for unscrewing the oil filter or a large screwdriver, a funnel, a clean rag. Helpful Hints: Drain the oil after driving while the...
Replacing the camshaft drive belt Replace the camshaft drive belt if you find the following on inspection: traces of oil on any surface of the belt; signs of wear of the toothed surface, cracks, undercuts, folds...
Replacing the tension roller If noise is heard when the engine is running from the camshaft drive belt, it is likely that the tension roller bearing has failed. Remove the roller, check the performance of its...
Removal and installation of a flywheel The flywheel is removed for replacement or repair if the ring gear is damaged or the friction surface is heavily worn. You will need: socket wrench (head) «at 17», large...
Replacing the Head Cover Gasket If it was not possible to eliminate the oil leak from under the cylinder head cover by tightening the cap fastening nuts, replace its gasket. You will need: screwdriver, pliers,...
Replacing the cylinder head gasket If a leak of engine oil or coolant is detected at the junction of the head with the cylinder block, remove the head and replace its gasket. A leak can also occur due to warping of...
Replacing the intake pipe and exhaust manifold gaskets You will need: screwdriver, keys «for 8», «on 10», «at 13», «at 17», end heads «at 17», «at 19», pliers. 1. Remove the wire from the terminal «-» battery. 2. Remove safety...
Replacing the gasket of the oil crankcase of the engine You will need: keys «on 10», «for 8», end heads «on 10», «for 8». 1. Turn away bolts of fastening and remove protection of a crankcase of the engine. Drain engine oil (see «...
Replacement of valve stem seals The valve stem seals can be replaced without removing the cylinder head from the cylinder block. You will need: a tin rod with a diameter of about 8 mm (e.g. solder), tweezers, a...
Replacing the crankshaft seals To replace the front oil seal you will need: wrench «on 10», end head «on 10». 1. Remove the oil pump from the car (see « Removal and installation of the oil pump »). 2. Using a...
Camshaft oil seal replacement If traces of oil leakage through the camshaft oil seal are found, first check if the crankcase ventilation system is clogged and if the crankcase ventilation system hoses are...
Cylinder head repair Warning! The cylinder head is replaced with bearing housing assemblies as they are machined together. You will need: keys «at 13», «at 17», «at 21», spark plug wrench,...
Lapping of valves You will need: lapping paste, kerosene, a weak spring, passing through the outer diameter of the valve seat hole, valve lapping tool (reversible drill). In addition, ready-made...
Valve clearance adjustment To compensate for the thermal expansion of the valve, a gap is set between the end of the valve stem and the camshaft cam. With an increased clearance, the valve will not open...
Engine installation Install the engine in the reverse order of removal, taking into account the following. 1. The tightening torques for threaded connections are specified in application . Finally...
Engine disassembly 1. Remove the engine from the car (see « Removal and installation of the engine »). 2. Place the engine on firm stands. 3. Carefully remove the gearbox (see « Removal and...
Engine Troubleshooting After disassembly, thoroughly clean, rinse and dry all parts. 1. Clean the piston head from carbon deposits. If the piston has scuff marks, traces of burnout, deep scratches,...
Engine Assembly 1. Clear a deposit on the edges of beds of the block of cylinders. Clean deposits from oil grooves in beds. 2. Establish loose leaves of radical bearings in bed of the block of...
Removal and installation of the oil pump Helpful advice. If you are removing the oil pump, replace the front crankshaft oil seal (see « Replacing the crankshaft seals »). You will need: keys «on 10», «at 13», «at 17»,...
Oil pump repair You will need: keys «on 10», «at 13», screwdriver. 1. Remove the oil pump from the car (see « Removal and installation of the oil pump »). 2. Turn out six bolts of fastening of a...
Flushing parts of the crankcase ventilation system When the crankcase ventilation system is clogged, the pressure in the crankcase increases, which can cause oil to leak through the seals and gaskets. You will need: keys «at 13»,...