Nissan MA MA09ERT

Nissan MA MA09ERT

The MA09ERT is a mass-produced SOHC internal combustion engine manufactured by Nissan Motors. It is a compound-charged design (possessing both a turbocharger and a supercharger), seldom seen in Japanese vehicles.

Contents

Description

The "Nissan PLASMA" (Powerful & Economic, Light, Accurate, Silent, Mighty, Advanced) MA09ERT was based on the K10ET engine; Nissan attempted to improve performance and response by adding a supercharger to the (already turbocharged) MA10ET engine, which is a four-cylinder water-cooled OHC engine with a V-type valve arrangement and hemispherical combustion chambers, with sequential fuel injection.

The supercharger improved the response and the output in the low-rpm region (where turbochargers are typically less effective), and a new larger HT10 turbocharger aimed to improve output in the high-rpm regions. An intercooler and an updated intake manifold were added, the latter having a much larger throttle body and improved fuel rail. The result was an increase in output to 110ps (roughly 108bhp) from 74ps, and a much broader range of torque. Other changes included a reduction of engine capacity from 988 cc to 930 cc; this strengthened the engine by increasing the bore wall thicknesses by 1 mm, and allowed cars using it to enter competition classes not otherwise possible due to rules on forced induction.

The first prototypes of these engines were installed in the March Superturbo R/March R (EK10FR type) in 1988, shortly after the engine was installed in the March Superturbo.

The MA09ERT was the first compound-charged engine available in Japan; compound charging combines the increased low-speed torque of supercharging with the increased high-speed torque and power of turbocharging. The presence of the supercharger also mimizes the effects of turbo lag.

Specifications

Engine serial code: MA09ERT
Water-cooled 4-cylinder inline, air-air intercooler
Capacity: 930 cc
Combustion chamber shape: hemispherical
Valve system: SOHC
Bore × stroke: 66.0×68.0 mm
Compression ratio: 7.7
Compression pressure: 100 million kgf/cm² (10 terapascals) at 350 rpm
Max power (net): 110 PS (81 kW) at 6400 rpm
Max torque (net): 13.3 kgf·m (130 N·m) at 4800 rpm
Specific fuel consumption (net): 255 g/(PS・h) at 1200 rpm
Size (length × width × height: 705×575×680 mm
Maintenance weight: about 111 kg (manual transmission)
Valve timings

  • Inlet: 11.57
  • Exhaust: 57.17

Valve clearances Hot

  • Inlet: 0.25 mm
  • Exhaust: 0.30 mm

Idle rpm: M/T 750 and A/T 850
Ignition timing at idle: 15° BTDC

Oil System

Cold-weather model and 7.5 standard/W-30(SF class only for turbo)
Recommended oil grade: [turbo X]. 7.5W-30. (SG class for Nissan March Superturbo, SF for the Nissan March R)
Sump capacity: ~3.0 L
Oil filter capacity: ~0.2 L
SC oil capacity: 110 L
Shinteso MT150 made of NOK Cruba
Coolant capacity: ~4.0L

Exhaust gas purifier specifications

Fuel supply device: Nissan Motor NISSAN ECCS (Electronic Concentrated engine Control System)
Starting aids: Bimetal type air regulator
Air heating: Warm water heating on intake manifold.
Igniter: No point of contact type
Emission-reduction device: 3-way Catalyst type (monolith) and Falcat device
Catalytic converter capacity: 0.5L Maintenance target value: Idle CO/HC density of below 0.1% and 50 ppm respectively.
Air-fuel ratio control system: O2 sensor + ECCS control unit Ignition timing controller/control of Sscac: Electronic
Exhaust temperature warning device (preset temperature ℃): Fuse type (940)
Fuel evaporation (Ebapo) gas control device: Canister type
Crankcase emission control system: Close type.

Engine size

Cylinder block height (From the crank shaft center. ): 177 mm
Cylinder block length: 360 mm
Pitch between boas: P 79 mm
Cylinder boa diameter: D 66 mm
Stroke length: S 34 mm
Crank shaft Journal diameter: bj 45 mm
Crank shaft Pin diameter: db 40 mm
Crank shaft The total length: L 398 mm
Piston compression height: C 26.5 mm
Conrod center spacing: Lc 114.5 mm
Cylinder liner meat thickness: 3.5 mm

Piston/piston pin

Construction material: Aluminum alloy
Skirt outside diameter: 65.967 mm
Height: 51 mm
Compression height: 26.5 mm
Convex (concave) height of crown: 4.0 mm
Crown irregularity capacity: 17.5 mm
Pin length: 58 mm
Outside diameter: 17.5 mm
Engagement method of pin and Conrod: interference fit

Piston ring

The top B×T: 1.5 mm×2.5mm
Outer shape: Barrel force
Surface treatment: Nitride processing
Second base B×T: 1.5 mm×2.9mm
Outer shape: Taper
Surface treatment: Chrome plating Oil B×T: 2.8 mm×2.8mm

Conrod/Conroddobearing

Conrod center spacing: 14.5 mm
Large edge diameter: (D) 43 mm
Small edge diameter: (b)17.5 mm
(push inside diameter)
Width of large edge: (B) 20.0 mm
Width of small edge: (b) 20.0 mm
Inside diameter of bearing: 40 mm
Width: 17 mm
Bolt Size of screw: M8
Length under neck: 44 mm
Assembly weight: ~390 grams
Engagement method of piston pin: interference fit

Crank shaft specification

Total length: L 398.7 mm
Pin diameter: dp 40 mm
Journal diameter: dj 45 mm
Stroke: S 34 mm

Valve, valve guide and valve seat (intake/exhaust valves)

Valve diameter: φ35 mm / φ30 mm
Stem diameter: φ7 mm / φ7 mm

Valve spring

Intake/exhaust
Line diameter: 3.8 mm / 3.8 mm
Average of coil level 23.8 mm / 23.8 mm
Installation load: 16.5 kg / 16.5 kg
Travel: 40.6 mm / 40.6 mm

Oil pump rotational speed: 750/1000/3000 rpm
Exhalation pressure: ~2-4 kg/c㎡
Injection valve opening pressure: 3.5~4.0 kg/c㎡

Camshaft specification

Part Intake/exhaust
Operation angle: 62/62 degrees
Amount of cam lift: 5.5/5.6 mm
Central angle: 23/17 degrees
Overlap: 28 degrees

Timing belt and sprocket specification

Sprocket teeth on camshaft: 36
Sprocket teeth on water pump: 19
Sprocket teeth on crank: 18
Timing belt teeth: 91

See also

External links


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Nissan MA engine — Manufacturer Nissan Motors Production 1983 1992 Configuration I4 Displacement 930cc 1.0L 1.2L Valvetrain SOHC …   Wikipedia

  • Nissan Micra — Manufacturer Nissan Also called Nissan March (Asia) Datsun Micra Nissan Verita (Taiwan) Production 1982–present …   Wikipedia

  • Nissan March — La Micra est une petite voiture du constructeur japonais Nissan. Elle est vendue sous l appellation March au Japon. Le duo Micra / March en est aujourd hui à sa quatrième génération. la Micra actuellement vendue en Europe est fabriquée en Inde.… …   Wikipédia en Français

  • List of Nissan engines — Nissan Motors uses a straightforward method of naming their automobile engines. The first few letters identify the engine family. The next digits are the displacement in deciliters. The following letters identify features added and are order… …   Wikipedia

  • List of automotive superlatives — This page lists of the automobile industry that is, the smallest, largest, fastest, lightest, best selling, and other such topics.In order to keep the entries relevant, the list (except for the Firsts section) will be limited to automobiles built …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”