
Introduction :
The 1AZ has aluminum cylinder block with cast iron liners. It
features offset cylinder and crank centers. The
engine got the forged steel crankshaft, fully balanced by eight
counterweights. The crankshaft is attached to
the block by five main bearings. Between first and second bearings
there is a gear driven two balancing
shaft in the lower aluminum crankcase. The applying of balancing
shafts was a big step in reduction of
engine vibration. Helical gears are made from polymeric material
for the reduction of noise.
On top of the block there is aluminum DOHC 16-valve cylinder head.
The intake camshaft is equipped with
VVTi system (Toyota variable valve timing system), altering timing
by 50 deg. Camshafts are driven by a
single-stage roller timing chain. The angle between intake valves
and exhaust valves is 27.5 deg. Intake
valve diameter is 34.0 mm (1.3 in), and for exhaust valve - 29.5 mm
(1.2 in). Valve lift is 8.0 mm (0.3-in) for
both valve types. There are not hydraulic lifters.
The engine equipped with sequentially injected fuel system. Each
fuel injectors has twelve small injection
holes (0.18 mm or 0.01 in). The intake manifold is made from
plastic. The exhaust manifold and alytic
converter is one unit.
Compare to predecessor, the 1AZ has high efficiency and fuel
economy, low noise and vibration levels, light
weight and compact design, good reliability. The engine has older
brother the 2AZ-FE. The 1AZ is
superseded by the newest 3ZR-FE engine since 2007.
YOUNG STAR MOTOR CO.,LTD.
ABOUT US
- Provides quality products and the service, let the customer be satisfied
Who are we ?
Out there when most companies are busy expanding their complie and fancy product lines, making them look like they can do a lot of things that aren't professional, just to attract more customers and make more money. But our boss, Mr. Huang, on the other hand has been investing his expertise on 8 years of the Auto Engine Parts Field, so that we can provide much better and more professional service to our customers. At present, our company mainly focuses on auto engine parts business, and we are slowly expanding other auto parts business line to meet the needs of different customers.
What we do
Main Vehicle Type:
SUV, MPV , 4X4 off-road vehicle,Pick-up,Light Truck,Van, Gasoline Car…etc
Our main products Including:
Bare Cylinder Head ; Complete Cylinder Head ;
Crankshaft ; Camshaft ; Connecting Rod
Engine Valve ; Full Engine Gasket Ste
Cylinder Head Assy Repair Kits :
Valve Spring ; Valve Retainer ; Valve Keeper ; Valve Seal ....etc
Our main Vehicle Type :
1. Hyundai H1 / H100 ; Santa Fe ; Starex ; Accent ; Getz ......
2. 4x4 Mitsubishi Pajero ; MITSUBISHI L200 ; L300 ...
3. Kia Sportage ; Rio ; Sorento ..
4. Toyota Hilux ; Land-Cruser ;Hiace ; Corolla...
5. Mazda BT-50 ; B2500 ...
6. IsuzuTrooper 4x4 ; Suzuki Jimny ; Suzuki Grand Vitara ; Suzuki-Samurai; Suzuki SJ 410 ;
7. Nissan Patrol ; Nissan Frontier ; Nissan X-Trail ; Nissan Patrol Y61.............etc
8. ; Fiat ; Volkswagen ; .......etc