Injection Pressure Test - Toyota 3b Repair Manual

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FUEL SYSTEM
-
lniection
Nozzles
[B and 38]
FU-9
pipes.
pipes
and
pipes and
ptpe.
ir
gaskets.
3.
REMOVE INJECTION NOZZLES
Using SST, remove the
four
nozzles, seats and
gaskets.
ssr
09268-46012
HINT:
Arrange the nozzles in correct order.
4.
INJECTION PRESSURE TEST
(a)
lnstall
the
nozzle
to an
injection nozzle hand tester
and bleed the air from the union nut.
CAUTION:
Do not
place your
finger over the
nozzle
injection
hole.
(b)
Pump
the
tester handle
a
few
times as fast
as
possible
by hand
to
discharge
the
carbon
from
the
injection
hole.
(c)
Pump
the
tester handle slowly and
observe the
pressure
gauge.
(d)
Read
the pressure gauge when the injection pressure
just
begins
to
drop.
Opening pressure:
New
nozzle
115
-
125 kg/cm2
(1,636
-
1,778
psi)
(11,278
-
12,258 kPal
Reused
nozzle
105
-
125k9/cm2
(1,493
-
1,778
psi)
(10,296
-
12,258kPal
HINT:
Proper
nozzle
operation can be determined by
a
swishing sound.

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