bmw e34 gear ratio
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Filed Under (BMW) by admin on 11-06-2010
1. Use a scan tool to monitor the fuel trim numbers and the Mass Air Flow (MAF) sensor data stream grams/sec readings. Nominal
values are 5 grams/sec at idle in Park, and >150 at Wide Open Throttle (WOT) and 5000 RPM, in gear. Some scan tools have a freeze frame feature, which is useful in trouble shooting if the problem is set at idle versus at cruise. Vacuum leaks and crankcase breather problems generally show up at idle. Voltage at the airflow meter should be .7-.9V at idle and increase from there with more airflow. 2. Monitor the crankcase vacuum with a vacuum gauge, which can be adapted onto the tube for the oil dipstick. Specification for the crank case vacuum is 8 to 15 millibar, this equals about 1/4 to 1/2 PSI or pounds per square. So, 1 PSI of vacuum would be twice as much as there should be at idle. The proper method, per BMW, is to use a slack tube manometer which can be made easily with clear tubing and making it into a U shape and have it marked in inch increments then half fill it with water. When crankcase vacuum is applied to one side of the tubing it should displace 4 to 6 inches of water if the crankcase breather is working correctly. 3. Monitor the fuel pressure. It should be a constant 50 – 53 PSI.
Filed Under (Pontiac) by admin on 31-10-2010
If the transmission jumps out of gear during deceleration, inspect the components that may allow for the gears or shafts to tip. If the gears or shafts tip, the synchronizer sleeve can disengage from the selector teeth on the speed gear. If the transmission jumps out of gear during acceleration, inspect the components that may not allow full engagement of the synchronizer sleeve to the selector teeth on the speed gear. Insufficient engagement of the selector teeth under torque may cause the transmission to jump out of gear. Test Description The numbers below refer to the step numbers on the diagnostic table. 2. A static shift test is performed by shifting into all gear positions with the engine not operating. While performing the test, slowly move the shift lever. Feel for proper movement of the shift lever and transmission internal shift components. 4. A dynamic shift test is performed by shifting into all gear positions with the engine operating. Test for the correct mesh of the synchronizers sleeve and the speed gear selector teeth. Move the shift lever, and feel for the synchronizer sleeve to release from the gear, then let up on the clutch pedal. Depress the clutch pedal and move the shift lever to engage the gear again, to ensure full travel of the shift components. 5. This step inspects for worn or damaged transmission or engine mounts. Loose mounts may cause a shock on the transmission allowing for gear disengagement. 6. This step inspects for the misalignment of the torque tube to transmission. Misalignment may put a bind on the input shaft, allowing for the input shaft or the mainshaft to tip. 8. This step inspects the pilot bearing and the pilot bearing journal on the input shaft. A worn pilot bearing or input shaft may allow the input shaft to tip, causing gear disengagement.
Filed Under (volkswagen) by admin on 20-03-2011
Power Steering Gear Special tools, testers and auxiliary items required Hose clamps up to 25 mm dia. 3094 Torque wrench V.A.G 1331 Torque wrench V.A.G 1332 Engine/transmission jack V.A.G 1383 A with universal transmission support V.A.G 1359/2 Notes for repair work on power steering gear All work on the power steering must be carried out with utmost cleanliness. Thoroughly clean all connections and the surrounding area before disconnecting. If repairs will not be carried out immediately, place removed parts onto a clean surface and cover. Only use lint-free cloths. Only unpack replacement parts immediately prior to installation. Only use parts in their original packing. Removing Remove bolts – 1 – . Remove cover – A – . Remove bolt – 1 – from universal joint. Remove universal joint from steering gear. Clamp off hose from reservoir using hose clamps up to 25 mm dia. 3094 . Clamp off hose on power steering pump using hose clamps up to 25 mm dia. 3094 . Remove sound-deadening pan. Place drip tray underneath. . Press off tie rod from steering knuckle. A – Tie rod puller (standard), e.g. Kukko 128/2 Remove hose lines at steering gear and plug using a plastic bag and tape. Seal threaded holes on power steering gear using plastic screw plugs – 1 – and – 2 – . Remove bolts – 1 – and – 2 – . With TDI Engines Remove bracket for front exhaust pipe at subframe – arrows – and disengage. Continuation for All Support subframe using engine/transmission jack V.A.G 1383 A . Loosen bolts – 1 – . Remove bolts – 2 – and – 3 – . Lower subframe using engine/transmission jack V.A.G 1383 A . Remove bolts – 1 – for power steering gear. Remove power steering gear toward right. Installing Note: . Use new O-rings for hose/line connections. Coat seal on steering gear with lubricant, e.g. lubricating soap, before installing steering gear. After placing steering gear on to universal joint shaft, make sure that seal on steering gear makes contact on assembly plate without kinks and opening to footwell is correctly sealed. Ingress of water and/or noises may result otherwise. Make sure sealing surfaces are clean.
Filed Under (volkswagen) by admin on 27-10-2010
1. 2. 3. 4. 5. 6. 1st gear 2nd gear 3rd gear 4th gear 5th gear Transmission housing Servicing. Refer to Case, M/T. 7. Selector mechanism (Selector forks) Disassembling and assembling. Refer to Shift Fork, M/T. 8. Input gear for 1st and reverse gear 9. Input shaft Disassembling and assembling. Refer to Input Shaft. 10. Output shaft Disassembling and assembling. Refer to Output Shaft, M/T. 11. Differential Disassembling and assembling. 12. Clutch housing Servicing. Assembly Overview I – Removing and installing cover for transmission housing and 5th gear. II – Disassembling and assembling transmission housing and shift mechanism. III – Disassembling and assembling input shaft, output shaft, differential and selector forks. Transmission Housing And 5Th Gear Cover, Removing And Installing Cover 1. Bolt, 10 Nm (7 ft. lbs.) For transmission housing cover 2. Transmission housing cover Note: If the transmission cover IS removed and reinstalled with the transmission installed, check oil level as follows: Fill with oil up to lower edge of filler hole and install filler plug. Start engine, engage gear and allow transmission to turn for approx. 2 minutes. Switch off engine and top up transmission oil to lower edge of filler hole again. 3. Gasket 4. Torx socket head bolt M10, 80 Nm (59 ft. lbs.) Bolt head holds dished washer in position 5. Dished washer Installing. Refer to Case, M/T. 6. Socket head bolt, 25 Nm (18 ft. lbs.) For pivot pin to transmission housing 7. Pivot pin 8. 5th gear selector fork Disassembling and assembling Adjusting. Refer to Case, M/T. 9. 5th gear operating sleeve Installation position. Adjusting. 10. Synchronizer hub with 5th gear and synchronizing ring Disassembling and assembling 11. Needle roller bearing 12. 5th gear Installation position.
Filed Under (Ford) by admin on 19-02-2011
1. Open hood. 2. Disconnect battery ground cable (14301). Refer to Section 14-01. 3. From inside vehicle, remove nuts retaining steering column tube boot (3C611) to cowl panel. 4. Remove bolt retaining steering column intermediate shaft coupling (3A525) to steering column lower yoke (3N725) . 5. Position steering column tube boot out of the way. Remove pinch bolt retaining steering column intermediate shaft coupling to power rack and pinion steering gear and remove steering column intermediate shaft coupling . 6. Raise vehicle on a twin post hoist and remove front wheel and tire assemblies. 7. Remove exhaust system flex tube-to-dual converter Y-pipe attachment. Disconnect heated oxygen sensor wiring harness. Remove dual converter Y pipe (5F250) from vehicle. Dual Converter Y Pipe Removal 8. Support vehicle with jack stands under rear edge of front sub-frame (5C145). 9. Remove tie rod cotter pins and nuts, and remove tie rod end (3A130) from RH front wheel knuckle (3K185) and LH front wheel knuckle (3K186). 10. Remove tie rod end from front wheel spindle tie rod (3280) . Mark position of jam nut to maintain alignment. 11. Remove nuts from steering gear-to-front sub-frame retaining bolts. 12. Remove rear sub-frame-to-body retaining bolts. 13. Raise twin post hoist carefully until rear sub-frame (5R003) separates from body approximately 102 mm (4 inches). 14. Remove heat shield push-pin retainers from power steering hose bracket (3C510). Remove steering shaft U-joint shield (3F540). 15. Remove screw and power steering left turn pressure hose (3A714) from power steering hose bracket . Remove two screws and power steering hose bracket. 16. Remove LH stabilizer bar link (5K484). 17. Disconnect power steering pressure switch electrical connector. 18. Rotate power rack and pinion steering gear to clear bolts from front sub-frame and pull left to ease line fitting removal. 19. Place a drain pan under vehicle and remove hydraulic power steering pressure hose and power steering return hose from fittings on power rack and pinion steering gear. 20. Remove power rack and pinion steering gear assembly through LH wheel well. Installation 1. Install new Teflon® O-rings on both line connector assemblies as described under Quick Connect Power Steering Fitting—Seal Replacement. 2. Place steering gear retaining bolts in steering gear housing (3548). 3. Install power rack and pinion steering gear through LH wheel well. 4. Install power steering hose bracket and two screws. Tighten to 9-12 Nm (80-106 lb-in). 5. Install hydraulic power steering pressure hose and power steering return hose to fittings on power rack and pinion steering gear. Tighten hoses to 33-41 Nm (25-30 lb-ft). 6. Install power steering pressure hose and and screw. Tighten to 9-12 Nm (80-106 lb-in). 7. Connect power steering pressure switch electrical connector. 8. Position power rack and pinion steering gear into front sub-frame. 9. Install tie rod ends onto front wheel spindle tie rods . 10. Install push-pin retainers at top of heat shield. 11. Install tie rod end to RHfront wheel knuckle and LH front wheel knuckle. Install nuts and tighten to 47-63 Nm (35-46 lb-ft). Install new cotter pins. 12. Install LH stabilizer bar link. Tighten to 76.5-103.5 Nm (57-76 lb-ft).