Handling and disposal of sodium-filled exhaust valves requires special care and consideration. Under conditions such as breakage with subsequent contact with water, metal sodium which lines the inner portion of exhaust valve will react violently, forming sodium hydroxide and hydrogen which may result in an explosion. Sodium-filled exhaust valve is identified on the top of its stem as shown in illustration.
(A) : Identification mark of sodium-filled exhaust valve
DEALER DISPOSAL INSTRUCTIONS
CAUTION:
(A) : Black color
(B) : Silver color
(c) : 47 mm (1.85 in)
(d) : 17 mm (0.67 in)
(a) : 40 mm (1.57 in)
Strike the valve face end with a hammer, separating it into two pieces.
Carefully place the already cut (serrated) valves into the water one-at-a-time using a set of large tweezers and quickly move away at least 2.7 m (9 ft).
However, no more than 8 valves should be placed in the same
10 (2-5/8 US gal, 2-1/4 lmp
gal) amount of water. The complete
chemical reaction may take as long as 4 to 5 hours.
Remove the valves using a set of large tweezers after the chemical reaction has stopped. Afterwards, valves can be disposed as ordinary scrap.
A : Bucket [Such as 20 (5-1/4 US gal, 4-3/8 Imp gal) oil can]
Preparation
Special Service Tool
The actual shape of the tools may differ from those illustrated here.
Tool number
(TechMate No.)
Tool name
Description
—
(J-46534)
Trim Tool Set
Removing trim components
...
Uniform tire quality grading
DOT (Department of Transportation) Quality
Grades: All passenger car tires must conform to
federal safety requirements in addition to these
grades.
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 ...
System
EPS SYSTEM
EPS SYSTEM : System Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL
Communicates the signal from each control unit via CAN communication.
Control unit
Signal status
ECM
Transmits the following signal to EPS control unit via CAN
communica ...