Toyota 1PZ Repair Manual page 157

FU-18 FUEL SYSTEM - Injection Nozzles (1 HD-T)
COMPONENTS
DISASSEMBLY OF INJECTION NOZZLES
DISASSEMBLE INJECTION NOZZLES
(a) Remove the nozzle holder retaining nut.
NOTICE: When disassembling the nozzle, be careful
not to drop the inner parts.
(b) Remove the nozzle sub-assembly and distance piece,
CLEANING AND INSPECTION OF INJECTION
NOZZLES
1. NOZZLE CLEANING
(a) To wash the nozzles. Use a wooden stick and brass
HINT: Do not touch the nozzle mating surfaces with your
fingers.
straight pins, No.1 pressure pin, No.1 pressure spring,
adjusting shim, capsule sub-assembly and adjusting
shim.
brush. Wash them in clean diesel fuel.