Turbo Chra GT1749MV 755046-0001 740067-0002 for Opel Astra,Vectra/Fiat Croma 1.9L
PRODUCT DESCRIPTION
⇒P/N
740067-0002 755046-0001 755046-0002 755046-0003
762660-0001 762660-0002 766340-0001 773720-0001
Turbine wheels & compressor wheels size information
| Turbine Wheels |
|
|
| (A) Inducer |
(B) Exducer |
Blades |
| 43 |
38 |
9 |
| Compressor Wheels |
|
|
| (A) Inducer |
(B) Exducer |
Blades |
| 36.4 |
49 |
5/5
|
⇒Turbo Model
GT1749MV
⇒Engine NO.
55190872 , 71792077 , 71787483 , 71790775
93169106 , 55196766 , 55205356 , 93181979
860075 , 860549 , 93183988
⇒Application
Opel Astra / Vectra / Zafira 1.910L 110KW M741 1.9DTH Euro 4
Saab 9.3 1.91L 110KW 2005 M741 1.9DTH Euro 4
Fiat Croma 1.9L 110KW 2006 1.9 JTD 16V Euro IV
⇒Balancing Test
<0.5Mg.mm / 150000RPM
⇒Condition
Brand new
TAIN TURBO CHRAS are 100% balancing tested by SCHENCK TB-Sonio.
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.
