5.5.4
FUEL AND ENGINE CONTROL - SERVICE PROCEDURE
Reassembly and adjustment <KBL2.1 injection nozzle>
Adjust while assembling the parts by the following procedures. As the prelift is adjusted in 1/100 mm increments, use clean detergent to thoroughly remove dust and dirt before adjustment. The following special tools should be used when mak ing adjustments: Tool name Adjusting Device
1 39 to 49 N-m {4 to 5 kgf-m} 2 20to 25 N-m 3 {2 to 2.5 kgf-m} 5 49to 59 N-m {5 to 6 kgf-m}
4
Shim (for prelift)
14
Zexel product No .
7 6 13
u....-+--Shim (for valve opening pressure}
105789-0500
8 9 Adjusting Device (105789-0500) components
11 10
59to 78 N-m {6to 8 kgf-m}
D 7016C
Assembly sequence 13➔9➔8➔7➔5➔6-+4➔2➔3, 11➔12
____r 1O➔ 14➔1
NOTE: Never touch the sliding surface of the needle valve by hand.
Adjusting Steps
83942A 1
Adjusting device assembly
157892-0220
2
Dial gauge
157954-3800
3
Pint= 50 mm
157892-1200
4
Pin e = 60.5 mm
157892-1100
5
Connector assembly
157892-1320
6
Base
157892-1800
7
Gasket <for Retaining nut>
157892-1500
8
Retaining nut for adjustment
157892-1420
9
Gasket <for bolt of retaining nut>
026508-1140
13A-40
CD Adjustment of 1st valve opening pressure ® Selection of prelift adjusting shims @ Adjustment of 2nd valve opening pressure ("open" pressure) *@ Check of needle valve full lift @ Installation of prelift shims *@ Checking of prelift *(/) Adjustment of 2nd valve opening pressure ("cover" pressure) @ Inspection Inspection make operations marked with sary for inspection or confirmation.
* as neces