Renault K7M 1.6L 8V Engine Specs, Problems, Reliability

Renault K7M 1.6L 8V Engine Specs, Problems, Reliability. The K7M engine is 1.6-liter motor based upon K7J elements, to put it simply, it is the more effective variation, which uses more driven convenience without substantially increasing of fuel usage and the cost of 1-mile driving.

Renault K7M 1.6L 8V Engine Specs

The K7M engine cylinder block is taller than K7J block. That is because there is the engine and another crankshaft has the increased by 10.5 mm stroke. Pistons of both the K7J and K7M have the very same diameter, however K7M pistons have another compression height. Other parts are identical – the aluminum SOHC 8-valve cylinder head, linking rods, oil exhaust, pump and intake manifolds. The engine has timing belt likewise. The 1.6 l K7M featured multipoint fuel injection system and exhaust gas recirculation EGR emission control system.

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Renault K7M 1.6L 8V Engine Specs, Problems, Reliability

This 1.6-liter engine is preferable than the 1.4-liter engine for day-to-day driving, which since a lot of buyers stopped their option on the K7M engine.

Renault K7M Engine Problems and Reliability

1. K7M engines suffer rather significantly from head gasket failure (blending coolant and engine oil) due to a weak coolant pump and overheating.
2. The engine operates like a diesel due to worn out camshaft bearings. That can happen almost at 40,000-50,000 mileage (60,000 km).
However in fact, the engine is really trustworthy. It is geared up with easy, inexpensive and tried and true technologies. The engine life of the K7M is 250,000 miles (400,000 km).

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you must see more engine detail in here:  Engine – US Cars News or you can see on wiki here

Renault K7M 1.6L 8V Engine Specs

Manufacturer Renault
Production years 1995-present days
Cylinder block material Cast Iron
Cylinder head material Aluminum
Fuel type Gasoline
Fuel system Fuel injection
Configuration Inline
Number of cylinders 4
Valves per cylinder 2
Valvetrain layout SOHC
Bore, mm 79.5
Stroke, mm 80.5
Displacement, cc 1598
Type of internal combustion engine Four-stroke, naturally aspirated
Compression Ratio 9.5
Power, hp 75-90/5000-5500
Torque, lb ft 94 lb-ft (128 Nm)/3,000
Engine weight
Firing order 1-3-4-2
Engine oil weight 5W-40, 5W-30 (Elf Excellium 5W40)
Engine oil capacity, liter 3.4
Oil change interval, mile 10,000 (15,000 km) /12 months
Applications Renault Megane, Renault Scenic, Renault Clio II, Dacia Logan, Dacia Sandero, Dacia Lodgy, Dacia Dokker
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Renault K7M 1.6L 8V Engine Modifications

K7M702/703/790 – 90 hp (66kW) engine for 1995-1999 Renault Megane, Renault Scenic.
K7M720 – 75 hp (55kW) engine for 1995-1999 Renault Megane, Renault Scenic.
K7M744/745 – 90 hp (66kW) engine for 1998-2003 Renault Clio II.
K7M710 – 86 hp (64kW) engine for 2004-2010 Dacia Logan and 2008-2010 Dacia Sandero.
K7M800 – 83 hp (62kW) engine for 2011-p/d Dacia Logan and Dacia Sandero.
K7M812 – 80 hp (60kW) engine for 2012-p/d Dacia Lodgy and Dacia Dokker.