Car engine repair Renault Logan 1

Description of engine design
Renault Logan cars are equipped with transversely mounted four-cylinder, four-stroke, petrol injection, 8-valve engines with a working volume of 1.4 and 1.6 liters, mod. K7J 710 and K7M 710 (both engines are SOHC type)...

Possible engine malfunctions
Possible engine malfunctions, their causes and solutions

Useful tips for engine diagnostics
With a certain amount of skill and attentiveness, many engine and system faults can be determined quite accurately by the color of the smoke coming out of the exhaust pipe. Blue smoke indicates oil getting into the...

Checking the compression in the cylinders
Compression (compression stroke end pressure) in cylinders is 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 right powertrain suspension support
You will need: keys "10", "13", socket wrench "16". 1. Remove the engine crankcase guard (see "Removal and installation of mudguards and engine crankcase protection" ). 2. Using a wooden or rubber spacer, install a...

Replacing the left support of the powertrain suspension
You will need a 16 mm socket wrench. 1. Remove the battery (see "Removing and installing the battery" ). 2. Remove the engine crankcase guard (see "Removal and installation of mudguards and engine crankcase protection"...

Replacing the rear support of the powertrain suspension
You will need an 18 mm socket wrench. 1. Remove the engine crankcase guard (see "Removal and installation of mudguards and engine crankcase protection" ). 2. Remove the two bolts securing the rear powertrain support...

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 timing belt 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...

Removal, installation and inspection of the flywheel
The flywheel is removed to replace the rear crankshaft oil seal, to replace it if the toothed rim used to start the engine with the starter is damaged, and to grind the surface under the driven clutch disc. You will...

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. You will need: tools necessary to remove the air filter, ignition module, and a TORX...

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, as well as during engine braking after a long period of movement under load....

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

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 a, 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...

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 "Cylinder Head Gasket Replacement" ). 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 you do not have a lift, you will need a...

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