
Subject: S-size Injector 99/436 & NSDLB046D0483
Application: R A Lister and Company Limited TS and STW Engines.
Change: From November 1985 the above injector is superseded by injector 99/500S. All components remain the same apart from the nozzle assembly. The new nozzle assembly, HL140S25D881P2, is a reduced lift version on the old nozzle assembly, HL140S25D693P2.
Reason: The change permits more consistent engine performance.
Inter-changeability: The two types of injector are completely inter-changeable and it is permissible to mix them on an engine set. However, it is recommended that the engine set is changed to the new type when servicing is due.
If the injector is converted to the latest type by fitting nozzle HL140S25D881P2, the typecode on the holder body should be altered to 99/500S.
Note:
Injector Assembly: |
99/436 |
99/500S |
Setting Pressure: |
203 -5 bar (206 -5 ats) |
212 -5 bar (215 -5 ats) |
Nozzle Assembly: |
HL140S25D693P2 |
HL140S25D881P2 |
Nozzle Needle Lift: |
0,25 +0,05mm |
0.20 +0,05mm |