
Description
Clutches (cont’d)
The Acura four speed automatic transmission uses hydraulically actuated clutches to engage or disengage the transmission
gears. When clutch pressure is introduced into the clutch drum, the clutch piston is applied. This presses the friction
discs and steel plates together, locking them so they don’t slip. Power is then transmitted through the engaged clutch
pack to its hub-mounted gear.
Likewise, when clutch pressure is bled from the clutch pack, the piston releases the friction discs and steel plates, and
they are free to slide past each other while disengaged. This allows the gear to spin independently of its shaft, transmitting
no power.
[I st Clutch1
The first clutch engages/disengages first gear, and is located at the end of the mainshaft, just behind the end cover.
The first clutch is supplied clutch pressure by its oil feed pipe within the mainshaft.
[I
Clutch]
The first hold clutch engages/disengages low hold or 1 position, and is located at the end of the countershaft, just behind
the end cover. The 1st hold clutch is supplied clutch pressure by its oil feed pipe within the countershaft.
Clutch1
The second clutch engages/disengages second gear, and is located on the secondary shaft. The second clutch is supplied
clutch pressure through the secondary shaft by a circuit connected to the 2nd accumulator body.
Clutch1
The third clutch engages/disengages third gear, and is located at the end of the countershaft, opposite the end cover
The third clutch is supplied clutch pressure by its oil feed pipe within the countershaft.
Clutch]
The fourth clutch engages/disengages fourth gear, as well as reverse gear, and is located at the center of the mainshaft.
The fourth clutch is supplied clutch pressure by its oil feed pipe within the mainshaft.
[One-way Clutch1
The one-way clutch is positioned between the parking gear and first gear, with the parking gear splined to the countershaft.
The first gear provides the outer race surface, and the parking gear provides the inner race surface. The one-way clutch
locks up when power is transmitted from the mainshaft first gear to the countershaft first gear.
The first clutch and gears remain engaged in the 1 st,
and 4th gear ranges in the
q
position. However, the
one-way clutch disengages when the
or 4th clutches/gears are applied in the
position. This is because the
increased rotational speed of the gears on the countershaft over-ride the locking “speed range” of the one-way clutch.
Thereafter, the one-way clutch freewheels with the first clutch still engaged.
COUNTERSHAFT
GEAR
L O C K S
FREE
PARKING GEAR
Содержание Acura NSX 1991
Страница 1: ... j s _ _ ...
Страница 3: ......
Страница 22: ...Special Tools Individual tool lists are located at the front of each section ...
Страница 23: ...Specifications Standards and Service Limits 3 2 Design Specifications 3 l 1 ...
Страница 39: ...Body Specifications m I 1 175 46 3 Unit mm in ...
Страница 40: ...Maintenance Lubrication Points 4 2 Maintenance Schedule 4 4 ...
Страница 42: ... 13 I 0 4 3 ...
Страница 60: ...Engine Removal Installation ...
Страница 81: ...lr I 6 7 ...
Страница 162: ...Intake Manifold Exhaust System Intake Manifold 9 2 Exhaust Manifold 9 3 Exhaust Pipe and Muffler 9 4 ...
Страница 191: ... n EilEli3 A A A Cl51 c4 BLU 1 TACHO METER CONNECTOR Cl61 C478 C488 REDlYEL YELlRED J A GlOl ...
Страница 193: ... PGM FI 1 IDLE CONTROL 1 FUEL SUPPLY 1 EMISSION CONTROL II 17 ...
Страница 207: ...II 31 ...
Страница 211: ...I I 35 ...
Страница 219: ... cont d II 43 ...
Страница 235: ...1 l 59 ...
Страница 255: ...11 79 ...
Страница 285: ...1 l 109 ...
Страница 434: ...t 14 46 ...
Страница 477: ...14 95 ...
Страница 482: ...Illustrated Index L Side Cover 14 100 ...
Страница 484: ...Illustrated Index Transmission Housing 14 102 ...
Страница 486: ...Illustrated Index Torque Converter Housing Valve Body ...
Страница 527: ...3 Assemble the transmission in the following numbered sequence Replace cont dl ...
Страница 551: ......
Страница 698: ...9 Nom 0 9 kg m 7 lb ft REAR 9 Nom 0 9 kg m 7 lb ft ...
Страница 724: ...19 37 ...
Страница 766: ...19 79 ...
Страница 830: ...Types and Materials of Exterior Resin Parts Fuel filler lid HAS 2148 Gnylon PPO alloy Page 20 57 20 4 ...
Страница 876: ...UPPER FRAME Rear Bumper Disassembly BUMPER BEAM UPPER LICENSE PLATE SUPPORT SUMP R SKIRT 20 50 ...
Страница 888: ...Frame Repair Chart 20 62 ...
Страница 892: ...Heater Evaporator Door Position a C O L D KA type only VENT DOOR DEFROSTER EVAPORATOR HEATEd CORE CORE 22 4 ...
Страница 893: ...22 5 ...
Страница 937: ...22 49 ...
Страница 950: ...Blower 22 62 ...
Страница 971: ...22 83 ...
Страница 997: ... Dashboard AUTOMATIC CLIMATE CONTROL STARTER warning system I N T E G R A T E D CONTROL UNIT DASH FUSE BOX ...
Страница 1000: ...Relay and Control Unit Locations Engine Compartment ENGINE COMPARTMENT FAN RELA REAR WINDOW DEFOGGER IGNITER UNIT 23 14 ...
Страница 1003: ... JND WIRE EN NE GROUND WIRE B ...
Страница 1005: ... lzl A ENGINE W I R E H A R N E S S cont d 23 l 9 ...
Страница 1007: ... rl p173 5 Cl34 Cl32 Ti03 23 21 ...
Страница 1009: ...C2bl c262 I C203 cont d 23 23 ...
Страница 1011: ... rl SUB RELAY BOX A cont d 23 25 ...
Страница 1013: ...FRONT COMPAR 23 27 J ...
Страница 1015: ...e RIGHT RETRACTOR SUB HARNESS I LEFT RETRACTOR SUB HARNESS I ...
Страница 1017: ...FLOOR WIRE HARNESS I Lx C 4 1 6 I C4b5 c 2 I LEFT KICK PANEL I I c422 C425 C424 C426 C423 I 0404 6701 kont d 23 31 ...
Страница 1019: ...C466 C465 C468 C464 c473 FLOOR WlFiE HARNESS co d 23 33 ...
Страница 1021: ... ITI RETRACTABLE HEADLIGHT CONTROL UNIT i FLOOR WIRE HARNESS 23 35 ...
Страница 1023: ...MAIN FUSE BOX I 23 37 ...
Страница 1027: ...DRIVER S DOOR WIRE HARNESS PASSENGER S DOOR WIRE 23 41 ...
Страница 1029: ...SRS CONTROL UN FUEL TANK WIRES 23 43 ...
Страница 1031: ... rl DRIVER S SEAT I DRIVER S POWER SEAT WIRE HARNESS PASSENGER S SEAT PASSENGER S POWER SEAT WIRE HARNESS 23 45 ...
Страница 1097: ......
Страница 1275: ...1 ACTUATOR ASSEMBLY SPEED SENSOR 23 l 33 ...
Страница 1336: ......
Страница 1338: ......
Страница 1340: ......
Страница 1342: ......
Страница 1344: ......
Страница 1346: ......
Страница 1348: ......
Страница 1350: ...j ...
Страница 1352: ......
Страница 1354: ......
Страница 1356: ......
Страница 1358: ......
Страница 1360: ......
Страница 1362: ......
Страница 1364: ......
Страница 1366: ......
Страница 1368: ......
Страница 1370: ......
Страница 1372: ......
Страница 1374: ......
Страница 1376: ......
Страница 1378: ......
Страница 1380: ... e ...
Страница 1382: ......
Страница 1384: ......
Страница 1386: ......
Страница 1388: ......
Страница 1390: ......
Страница 1392: ... ...
Страница 1394: ......
Страница 1396: ......
Страница 1398: ......
Страница 1400: ......
Страница 1402: ......
Страница 1404: ......
Страница 1406: ......
Страница 1408: ......
Страница 1410: ... ...
Страница 1412: ......
Страница 1413: ... I 8 t 0 0 L Inm ...
Страница 1414: ...4B ...
Страница 1415: ... I f ...
Страница 1416: ......
Страница 1417: ...cted System Connectors ...
Страница 1418: ......
Страница 1420: ......