Click here to make tpub.com your Home Page

Page Title: Table 8. Amount Of Pressure That Is Required To Check The Wastegate Valve
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

73
TM 9-2320-312-24-2
Testing and Adjusting Section
As the boost pressure increases against the
Table 8
diaphragm in canister (2), the wastegate valve
Amount Of Pressure That Is Required To
opens. The rpm of the turbocharger becomes
Check The Wastegate Valve
limited. This limitation occurs because a portion of
Letter
the exhaust gases bypass the turbine wheel of the
kPa
psig
Designation
turbocharger.
156
B
(23)
The following levels of boost pressure indicate a
C
153
(22)
problem with the wastegate valve:
124
D
(18)
Too high at full load conditions
130
E
(19)
Too low at all lug conditions
135
F
(20)
180
G
(26)
The Technical Marketing Information (TMI) provides
the correct pressure for the inlet manifold.
H
144
(21)
188
J
(27)
To check the operation of the wastegate valve,
verify the correct pressure for the wastegate valve.
200
M
(29)
This can be accomplished by referring to the letter
161
V
(23)
designation that is stamped on the actuating lever
of the wastegate valve. This letter designation
164
W
(24)
indicates a corresponding amount of pressure.
The boost pressure controls the maximum rpm of the
Note: Refer to Table 8 for the letter designation and
turbocharger, because the boost pressure controls
the corresponding amounts of pressure.
the position of the wastegate. The following factors
also affect the maximum rpm of the turbocharger:
Remove the air line, and slowly apply the
corresponding amount of pressure to the canister.
Engine rating
DO NOT EXCEED 200 kPa (29 psi).
Horsepower demand on the engine
When the external supply of air that is connected
to line (3) reaches the corresponding pressure for
High idle rpm
the wastegate valve, the actuating lever should
move by 0.50 0.25 mm (0.020 0.010 inch). If
Height above sea level for engine operation
the actuating lever does NOT move by this amount,
replace the turbine's housing assembly of the
Inlet air restriction
turbocharger. This housing assembly includes the
wastegate valve. If necessary, replace the complete
Exhaust system restriction
turbocharger.
Note: The housing assembly for the wastegate
NOTICE
turbine is preset at the factory and no adjustments
If the high idle rpm or the engine rating is higher than
can be made.
given in the Technical Marketing Information (TMI) for
the height above sea level at which the engine is oper-
ated, there can be damage to engine or to turbocharg-
er parts. Damage will result when increased heat and/
or friction due to the higher engine output goes beyond
the engine cooling and lubrication system's abilities.

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business