Engine Nissan HR15DE

Content

Historical information
Technical specifications
Motor reliability
Maintainability
What kind of oil to pour?
List of Nissan cars with hr15de engine

Engines from Nissan for the modern buyer have proven to be affordable, reliable and have a long service life. Engines of the HR15DE series installed on such well-known cars as Nissan Tiida since 2004, even today, are much less likely to be repaired compared to their competitive counterparts.

Historical information

The history of the creation of modern engines includes a short history of several generations of internal combustion engines (ICE), which over time have been improved and adapted to changing operating conditions.

The first engine from Nissan appeared in 1952 and was a four-cylinder in-line carburetor engine, its displacement was only 860 cm³. It was this first internal combustion engine, installed on cars from 1952-1966, that became the founder of modern Nissan engines.

Since 2004, Nissan has experienced a turning point - the production of the latest HR series engines at that time began. From 2004 to 2010, the following engines were developed and produced:

HR10DDT;
HR12DE;
HR12DDR;
HR14DE;
HR15DE;
HR16de.

The first three models were in-line three-cylinder engines - that is, the pistons were located in one row and set the crankshaft in motion. The last three models were already four-cylinder engines. Important characteristics of the HR series motors were the combination of high power and moderate toxic emissions into the atmosphere. A number of models were equipped with a turbocharger, which technically made it possible to develop maximum power than engines without a turbine. Models were produced with small time intervals, the main differences were the difference in the volume of the combustion chamber and the degree of compression.

HR15de engine

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The HR15DE engine was one of the most optimal four-cylinder engines at that time compared to outdated predecessors. If the old models had higher fuel consumption, then the new model has this figure reduced to a minimum. Most of the components and assemblies were made of aluminum, greatly facilitating the design. Also, the torque of the power unit was increased, which is most suitable for the urban traffic cycle, even with traffic jams. Along with high power among all the “brothers”, this motor was the lightest, and the new technology for polishing rubbing surfaces made it possible to reduce the coefficient of friction by 30%.

Technical specifications

The first thing that motorists sometimes encounter when buying a car is looking for a plate with an engine serial number. Finding this data is quite simple - they are stamped by the manufacturer on the front of the cylinder block, near the starter. Nissan HR15DE engine

Now let's move on to deciphering the letter and number designations of the engine. In the HR15DE name, each element has its own designation:

the series of the produced engine is indicated by the first two letters "HR";
engine displacement is indicated by a number, which must be divided by 10. For our engine series, this parameter is 1,5 liters;
after the numbers comes the letter "D", which indicates that each cylinder has four valves (two intake and two exhaust), as well as two camshafts;
the last letter "E" indicates that nozzles are installed on this engine model.

The main characteristics of the power motor are shown in the table below:

Parameter	Value
Engine type	four-cylinder, sixteen-valve, liquid-cooled
Engine displacement	1498 cm³
Timing type	DOHC
Piston stroke	78,4 mm
Compression ratio	10.5
Number of compression rings	2
Number of oil scraper rings	1
Ignition order	1-3-4-2
Compression	Factory - 15,4 kg / cm² Minimum - 1,95 kg / cm² Difference between cylinders – 1,0 kg/cm²
Compression ratio	10.5
Power	99-109 HP (at 6000 rpm)
Torque	139 – 148 kg*m
(at 4400 rpm)
Fuel	AI-95
Combined fuel consumption	12,3 l

The HR15DE motor is a single-row 4-cylinder engine - the power unit has one crankshaft, which is driven by four pistons arranged side by side. Engine displacement is one of the most important indicators that motorists pay attention to - power depends on it. For the HR15DE model, it is 1498 cm³, which gives it a power of about 99-109 horsepower.
16-valve engine - each cylinder has two intake and two exhaust valves. Despite the discussion of engineers - which is more reliable - a chain or a belt, the manufacturer considers it more reliable to use a timing chain.
Valve overlap is minimized by the camshaft dephaser installed on this engine model. This device provides the maximum possible opening and closing retard angles of the intake valves.
Liquid cooling - it is advisable to use antifreeze as a working fluid. The thermostat, providing the optimal temperature regime of the motor, operates in the range of coolant 77-83,5 °.
Ignition order 1-3-4-2 - This diagram shows the ignition order of the fuel mixture in the combustion chamber. For its smooth operation, it is necessary to change the battery in a timely manner and use spark plugs recommended by the manufacturer.
It is important to note that the engine model has good torque indicators, which make it more comfortable to operate the car in an urban environment.
The fuel used is AI-95, however, judging by the reviews of motorists, this “omnivorous” engine works perfectly on AI-92 gasoline without loss of power.

Motor reliability

Almost every car owner knows that the resource of any motor largely depends on the conditions of its operation. If a person likes fast and “aggressive” driving, the load on rubbing components and assemblies increases, and the wear of parts increases. Frequent overheating contributes to the dilution of the oil, which does not have time to form a sufficient amount of oil film. In addition, non-compliance with the temperature range can lead to deformation of the cylinder head, coolant entering the combustion chamber and serious damage to the cylinder-piston group.

It is worth paying attention to the following points:

Nissan produces models with a chain or gear timing drive, which is certainly more reliable than belts.
When overheating, the engines of this series rarely crack the cylinder head.
Models of the HR series have always been recognized as the best and most reliable among all the "brothers" in the world.

The resource of the power unit HR15DE is at least 300 thousand kilometers, but this is far from the limit. Subject to the operating rules described in the manual, as well as the timely replacement of oil and oil filter, the resource increases to 400-500 thousand mileage.

Maintainability

One of the minor drawbacks or "fly in the ointment" is the difficult repair work on this model. Difficulties arise not at all due to poor-quality assembly or lack of repair parts, but rather dense “staffing” of the engine compartment. For example, to remove the generator in order to replace it, you will need to unscrew neighboring components and assemblies. The undoubted positive point is that these motors and their components rarely require repair.

If one day your engine began to warm up badly, zatroil, detonation appeared or the car began to twitch while driving, then your car’s mileage is already more than 300 thousand kilometers.

The manufacturer also recommends that owners of cars with high mileage always carry engine oil, coolant, automatic transmission fluid, and a wiring diagram with them. In case of emergency contacting a car service, this will greatly help the car mechanic in repairs.

What kind of oil to pour?

Quality engine oil plays a huge role in the longevity of the "heart" of your car. The modern oil market offers a huge selection - from the cheapest to the most expensive brands. The manufacturer recommends not saving on engine oil and using Nissan branded synthetic engine oil, which is sold only in specialized stores.