GT1749MV 740080 752814 Turbocharger chra for Opel Astra,Vectra/Fiat Croma 1.9L
PRODUCT DESCRIPTION
⇒P/N
740080-0002 752814-0001 754821-0001 755042-0001
755042-0002 755042-0003 755373-0001 760822-0001
760822-0002 767835-0001 767837-0001
⇒Turbo Model
GT1749MV
⇒Engine NO
55190871 , 55193105 , 55195787 , 55196858
⇒Application
Alfa Romeo 120PS159 1.9 JTD 8V M737AT.19Z
Fiat Grande Punto JTD 8V 120PS M737AT.19Z
Alfa Romeo 159 1.9 JTD 120PS 1.9JTD 8V Euro 4
Grande Punto JTD 8V 120PS M737AT.19Z
Opel Astra / Vectra / Zafira 1.91L 2004 1.9JTD 8V Euro 4
⇒Balancing Test
<0.5Mg.mm / 150000RPM
⇒Condition
Brand new
What is a Turbo CHRA?
A complete turbocharger is essentially a Centre Housing Rotating Assembly (CHRA or core assembly) with housings fitted to
each side. The turbine housing directs exhaust gas to power the turbine wheel, the compressor housing directs air into the
engine. The turbine housing will have a wastegate to control the turbine speed, or as is more common on diesel engines, there
is a variable vane mechanism giving much better control of the turbo, reducing lag, and improving performance. The wastegate
or vane mechanism is controlled by an actuator – which could be controlled either electronically or by a vacuum system.
The CHRA is a rotor (turbine wheel on one side, compressor wheel on the other) that is held in a bearing system allowing it to
rotate at high speed on a pressurized oil film similar to the engine. Turbo remanufacturer’s traditionally stripped the complete
turbocharger and CHRA, examine all the individual components, replacing these where necessary, and install brand new
bearings and seals.
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GT1749MV 740080 752814 Turbocharger chra for Opel Astra,Vectra/Fiat Croma 1.9L Images
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