Mazda MX-6 1998, Workshop Manual

Page: 480 / 1282

FUEL SYSTEM
PRESSURE REGULATOR REMOVAL/INSTALLATION
W 6 U 1 I 4 W 1 2
Complete the “BEFORE REPAIR PROCEDURE.”
(Refer to 01 -1 4 BEFORE REPAIR
PROCEDURE.)
Disconnect the negative battery cable.
Remove in the order indicated in the table.
Install in the reverse order of removal.
Complete the “AFTER REPAIR PROCEDURE”.
(Refer to 01-14 AFTER REPAIR PROCEDURE.)
7.9— 10.7 N m
{80— 110 kgf-cm,
69.5—95.4 in lb f}
W6U114WQ0
Vacuum hose
Fuel return hose
Pressure regulator
7.9— 10.7 N m
{80— 110 kgf-cm,
69.5— 95.4 in lb f)
W6U114WAW
PRESSURE REGULATOR INSPECTION
W 6U114W 13
Fuel line pressure
FS:
210— 260 kPa {2.1— 2.7 kgf/cm2, 30— 38 psi>
KL:
210— 250 kPa {2.1— 2.6 kgf/cm2, 30— 36 psi}
7. Disconnect the vacuum hose from the pressure
regulator and measure the fuel line pressure.
Complete the “BEFORE REPAIR PROCEDURE’
(Refer to 0 1 -1 4 BEFORE REPAIR
PROCEDURE.)
Disconnect the negative battery cable.
Connect a fuel pressure gauge between the fuel
filter and the fuel distributor [FS] or between the
fuel distributors RH and LH [KL]. (Install clamps
as shown.)
FUEL PRESSURE GAUGE
INSTALL CLAMPS
W6U114WAY
W6U114WAX
FUEL PRESSURE GAUGE
VACUUM HOSE
w 6 u m w N X INSTALL CLAMPS
4. Connect the negative battery cable.
5. Start the engine and let it idle.
Fuel line pressure
6. Measure the fuel line pressure after approx. 2 FS;
minutes. 260— 320 kPa {2.6— 3.3 kgf/cm2, 37— 46 psi}
KL:
2 7 0 — 3 1 0 kP a {2 .7 — 3 .2 k g f/c m 2, 39
— 45
p s i}
0 1 -1 4 -1 6