1989-Montero · emission system · страница 20 из 38 · Открыть оригинал PDF ↗
INSPECTION AT ALTITUDE ABOVE 1,200 m (3,900 fi.)
(1) Disconnect the vacuum hose (yellow stripe) from the HAC
and connect a hand vacuum pump to the HAC nipple.
(2) Check that vacuum holds when applied.


(3) Disconnect the vacuum hose (red stripe) from the HAC
and connect another hand vacuum pump to the HAC
nipple.
(4) With vacuum held as in step (2). check that vacuum leaks
and dose not hold.
VACUUM SWITCHING VALVE (VSV) - High-alti- tude vehicles for Federal N251cac INSPECTION
NOTE
When disconnecting the vacuum hose, put a mark on the
hose so that it may be reconnected at original position.
(1) Remove the vacuum switching valve.
(2) Connect a hand vacuum pump to the black vacuum nipple
of the vacuum switching valve.
(3) Apply a vacuum of 53 kPa (15.7 in.Hg) and check air
tightness.
(4) Blow in air lightly from the carburetor air bleed side nipple
and check condition as follows.
| Hand vacuum pump vacuum | Normal condition |
|---|---|
| 27 kPa (7.9 in.Hg) or less - - | Air does not blow through |
| 34 kPa (9.8 in.Hg) or more | Air blows through |
CHECK VALVE - Federal/California and High-alti- tude vehicles for Federal ?425mca INSPECTION
NOTE
When disconnecting the vacuum hose, put a mark on the hose so
that it may be reconnected at original position.
(1) Remove the check valve.
(2) Connect a hand vacuum pump to the check valve and check air
tightness.
1
Color of nipple to which hand vat- Normal condition
uum pump is connected i
Dark blue ~- Vacuum leaks
,- 1
1 White 1 Vacuum holas 1
:
1
TSB Revision

