Renault Logan repair
The Renault Logan is an affordable family car, so to keep its price down, components and assemblies from other Renault models were extensively used. The car's MacPherson strut front suspension with lower wishbones is based on that of the Renault Clio II, while the rear features a semi-independent H-shaped crossbeam with trailing arms, similar to the Renault Modus. The entire heating system is also borrowed from the new Modus. The electronic control unit is borrowed from the Twingo, and the car received the cooling system vents and gearshift knob from the Espace.
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 clutch disc.
An external sign of worn valve stem seals is the brief appearance of blue smoke from the exhaust pipe after starting the engine, as well as during engine braking after prolonged driving under load.
If the oil leak from under the cylinder head cover cannot be stopped by tightening the cover bolts, replace the cover gasket.
If you detect signs of oil leaking through the crankshaft seals, first check to see if the crankcase ventilation system is clogged or if any hoses are pinched. Repair if necessary.
If you detect signs of oil leaking through the camshaft oil seal, first check the crankcase ventilation system for blockages and pinched hoses. Repair if necessary.
