Car engine repair Renault Sandero 1

Engine — design features
Renault/Dacia Sandero cars are equipped with transversely mounted four-stroke four-cylinder petrol injection engines: 8-valve with a working volume of 1.4 l model K7J and 1.6 l model K7M (both engines are SOHC type),...

Checking the compression in the cylinders
Compression (compression stroke end pressure) in cylinders - the most important indicator for diagnosing the condition of the engine without disassembling it. Based on its average value and the difference in values in...

Removal and installation mudguards and engine crankcase protection
The engine mudguards, located in the engine compartment below and on the sides, protect the underhood space from contamination and are not a power protection for the engine crankcase. To protect the engine crankcase, as...

Replacing the powertrain suspension mounts
Replacing the right powertrain suspension support You will need: keys "10", "13", socket wrench "16". 1. Remove the engine crankcase guard (see " Removal and installation mudguards and engine crankcase protection ")....

Cleaning the crankcase ventilation system
Over time, resinous deposits from crankcase gases accumulate in the engine's crankcase ventilation system, making it difficult for these gases to be removed into the engine cylinders for combustion. Because of this, the...

Setting the piston of the first cylinder to the TDC position of the compression stroke
The piston of the 1st cylinder is set to the TDC position (top dead center) compression stroke so that the valve timing is not disturbed when performing work related to removing the camshaft drive belt. If the valve...

Replacement and adjustment of belt tension, replacement of the timing drive tension roller
During each maintenance check the tension of the timing belt. Adjust the tension if necessary, since a loose belt will quickly wear out its teeth and, in addition, the belt may jump on the toothed pulleys of the...

Adjusting valve clearances
To compensate for thermal expansion of the valve, a gap is structurally set between the end of the valve stem and the adjusting bolt screwed into one of the arms of the valve drive rocker. With an increased gap, the...

Checking, flushing and replacing hydraulic compensators for clearances in the valve drive mechanism of the K4M engine
Hydraulic compensators of clearances in the valve drive mechanism serve to eliminate clearances in the drive. The operation of the hydraulic compensator is based on the principle of incompressibility of engine oil,...

Removal, defect detection and installation of the flywheel
The flywheel is removed for replacement if the toothed rim used to start the engine is damaged, for replacement of the rear crankshaft seal, and for grinding the surface under the driven clutch disc. You will need:...

Replacing the cylinder head cover gasket
If the oil leak from under the cylinder head cover cannot be eliminated by tightening the cover mounting bolts, replace its gasket. Note: The K4M engine does not have a cylinder head cover gasket. Its role is performed...

Replacing valve stem seals
An external sign of wear of the oil scraper caps is the short-term appearance of blue smoke from the exhaust pipe after starting the engine and during engine braking after a long period of movement under load. In this...

Replacing the cylinder head gasket
If you detect a leak of engine oil or coolant at the junction of the cylinder head and the cylinder block, remove the head and replace its gasket. The leak may also occur due to warping of the cylinder head due to...

Replacing the camshaft seal
If you find traces of oil leakage through the camshaft oil seal, first check whether the crankcase ventilation system is clogged or whether the hoses of this system are pinched, and fix the faults if necessary. If the...

Replacing crankshaft seals
If traces of oil leakage through the crankshaft seals are detected, first check whether the crankcase ventilation system is clogged and whether the hoses of this system are pinched, and correct the faults if necessary....

Replacing the oil pan gasket
If the oil leak through the oil pan sealing gasket cannot be eliminated by tightening the bolts that secure it, then the gasket is severely deformed and must be replaced. Perform work on an inspection pit, overpass or,...

Replacing the oil level indicator guide seal
The oil level indicator tubular guide is sealed in the cylinder block with a rubber ring. If oil leaks at the sealing point, replace this ring. You will need: key "for 10" (a socket head is more convenient),...

Replacing the intake manifold seal
There are four molded gaskets installed between the flanges of the cylinder head and the intake manifold. If these gaskets are not sealed properly, the engine will run unevenly (run rough). If the problem cannot be...

Replacing the exhaust manifold gasket
A sealing gasket made of a thin molded metal strip is installed between the flanges of the cylinder head and the exhaust manifold. If the seal of this gasket is broken, the exhaust gases break through to the outside,...

Replacing the camshaft
The camshaft is replaced in the following cases: the pressure in the engine lubrication system has dropped. The cause of this malfunction is often increased wear of the camshaft journals and camshaft bearing seats in...

Disassembly, repair and assembly of the cylinder head
If repair of the cylinder head of the engine installed on the vehicle is required, remove it (see " Replacing the cylinder head gasket "). In most cases, repair of the cylinder head consists of grinding or replacing the...

Lapping valves
The valve grinding is performed on the removed cylinder head. To remove the valves from the cylinder head guide bushings, it is necessary to remove the valve springs by compressing them with a special device and...

Removal and installation the engine
Remove the engine assembly with the gearbox by lowering it down from the engine compartment. To do this, you will need a lift to raise the front of the car higher. In a garage, if there is no lift, you will need a jack,...

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Sandero 1 (2007-2012, petrol)