ENGINE

ENGINE GRAND LININA

Engine grand livina memiliki dua versi engine yaitu HR Engine dan MR Engine,secara garis besar kedua engine ini hampir memiliki kesamaan ,hanya ada sedikit perbedaan namun memiliki kubikasi yang berbeda HR dengan volume 1500 sedangkan MR 1800

Engine type HR15DE
Cylinder arrangement In-line 4
Displacement cm3 (cu in) 1,498 (91.41)
Bore and stroke mm (in)   78.0 x 78.4 (3.070 x3.087)
Valve arrangement DOHC
Firing order 1-3-4-2
Number of piston rings
Compression 2
Oil 1
Compression ratio     10.5
Compression pressure
kPa (bar, kg/cm2 , psi) / 200 rpm

Standard
1,510
(15.1, 15.5, 219)

Minimum
1,170
(11.7, 12.0, 170)
Limit perbedaan antar cylinders 100 (1.0, 1.0, 15) 6.2 (0.06, 0.06, 0.9)

Engine type MR18DE
Cylinder arrangement In-line 4
Displacement cm3 (cu in) 1,797 (109.65)
Bore and stroke mm (in) 84.0 x 81.1 (3.307 x 3.192)
Valve arrangement DOHC
Firing order 1-3-4-2
Number of piston rings
Compression 2
Oil 1
Compression ratio 9.9
Compression pressure
kPa (bar, kg/cm2 , psi) / 250 rpm
Standard 1,481 (14.8, 15.1, 215)

Minimum 1,216 (12.2, 12.4, 176)
Limit perbedaan antar cylinders 100 (1.0, 1.0, 15)

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carburetor

Principle of carburetor

By air blow from A, a pressure lower than atmospheric pressure ( negative pressure)is generated of B and fuel is drawn out.
In carburetor the point A is called the venturi, it is provided in the air passage within the carburetor to increase the flow rate of air.

Structure of carburetor

Carburetor basically consist of a primary system for normal running, a secondary system for high speed heavy load running and float system.A starting mechanism,an acceleraty mechanism, a power valve mechanism,a secondary switchover mechanism,etc. are also attached.

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