Injector Nozzles and needles fitted to older vehicles with indirect injection

A typical CAV number is BDL110S6036

B – British made
DL – Nozzle type (i)
110 – Spray/hole angle
S – Size letter (ii)
6036 – Individual features number
DL – Hole type nozzle
DLL – Hole type nozzle, long stem
DLP – Hole type, flat seat nozzle
DN – Pintle type nozzle (see iii and iv)

ii) Size letters. Five sizes are included in the standard range, the letter indicating the diameter of the nozzle head, as detailed in Nozzle Holder size letter section below

iii) A letter “D” inserted after the size letter of nozzle ihdicates a delay type nozzle e.g. BDN12SD12

iv) A letter “P” inserted after the size letter of a BDN nozzle indicates & Pintanx (auxiliary hole) nozzle, e.g. BDN12SP6

Nozzle holders

Nozzle holder type symbols fall into three main categories:

a) Normal range, a typical symbol being BKD50824

b) Standardised range, a typical symbol being N36S8

c) Special types, a typical number being YNH6

The meaning of BKB50S24 is as follows:

B – British made
KB – Nozzle holder type
50 – Barrel length in mm
S – Size letter
24 – Individual features number

Size letter

R – to suit a nozzle head dia. of 16mm
S – to suit a nozzle head dia. of 17mm
T – to suit a nozzle head dia. of 22mm
U – to suit a nozzle head dia. of 30mm
V – to suit a nozzle head dia. of 42mm

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