Turbocharger Cartridge 721164-0003 801891-0003 17201-27040 Toyota Rav4 / Previa / Avensis 1CD-FTV
►TURBO NO. :
721164-0003 721164-0004 721164-0005 721164-0009
721164-0010 721164-0011 721164-0012 721164-0013
721164-0014 801891-0003 801891-0004
► Turbo Model :
GT1749V
► CHRA NO. :
701864-0020
►Engine NO. :
17201-27030-A , 17201-27040 , 1270170040 ,1720127030F
►APPLICATION :
Toyota Rav4 2.0L 85Kw 2001 1CD-FTV
Toyota Previa 2.0L 85KW 2005 1CD-FTV
Toyota Avensis 2.0L 85KW 2005 1CD-FTV
Toyota Estima 2.0L 85KW 2001 021Y
Turbine wheels & compressor wheels size information
Turbine Wheels |
|
|
(A) Inducer |
(B) Exducer |
Blades |
43 |
36 |
9 |
Compressor Wheels |
|
|
(A) Inducer |
(B) Exducer |
Blades |
34.7 |
49 |
6/6 |
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.
TAIN turbo chras are 100% balancing tested by SCHENCK TB-Sonio.